Ocean College and School Students Science Projects materials

The AMG8833 thermal imaging camera sensor is an 8x8 infrared thermal sensor array. When connected to your microcontroller (or Raspberry Pi), it will return a set of 64 separate infrared temperature readings via I2C. It is it's compact and simple, and easy to integrate. The sensor only supports I2C and has a configurable interrupt pin that can be triggered when any single pixel is above or below the threshold you set. It has a temperature measurement range of 0°C to 80°C (32°F to 176°F)

Grid-EYE is able to provide thermal images by measuring actual temperature and temperature gradients. Grid-EYE enables detection of multiple persons, identification of positions and direction of movement, almost independent of ambient light conditions without disturbing privacy as with conventional cameras

Imax B6AC 80W Digital Battery Balance Charger for RC Lipo/Nimh Battery This item is for a rapid charger/discharger for all kind of battery of RC hobby, with a built-in balancer for lipo battery. Battery that can be charged by this charger,Lipo / Li-ion / LiFe / NiMh / NiCad / Pb / Lead Acid. Features/Specs: Color: Bright blue, Oeration voltage range : DC 11.0 ~ 18.0 Volt or AC 100V ~ 240V 50/60Hz, Circuit power : AC to DC adaptor (DC 11.0 ~ 18.0V / 5A), Max. charge power 50W, Max. discharge power 5W, Charge current range : 0.1~5.0A, Discharge current range : 0.1~1.0A, Current drain for balancing Li-Po: 300mAh/cell, NiCd / NiMH battery cell count: 1~15 cell, Li-Ion / Polymer cell count: 1~6 series, Pb battery voltage: 2V~20V, High-power and high-performance circuit Microprocessor controlled, Maximum safety: Delta-peak sensitivity, capacity limit, processing time limit, temperature limit, input power monitor, Monitoring the voltage of an individual cell, Can charge Li-ion / LiPo / LiFe 1-6 cells, and Ni-Cd / NiMH 1 -15 cells Dual Power, built-in AC adapter, UndefinedLarge range of charge currents Store function allows safe storage current, and data storage (Store up to 5 packs in memory), Battery break in and cycling, Built-in temperature sensor, Separate voltage detector for balance charge mode., Weight: 546gm, Dimensions : 136 x 141*34mm.

The 250W High Power Constant voltage Current Adjustable Aluminum Substrate LED Driver Module can be used to get adjustable output voltage ranges from 10V to 50V. The module provides a wide range of current output up to 6 A. Aluminium substrate itself work as a heat sink which manages to run the module at high power application continuously

The Module is made from a dedicated benchmark IC and high-precision current sensing resistor, proving a more stable constant current, (when 20°C to 70°C constant current 1A, temperature drift less than 1%). and therefore it is particularly most suitable for LED driver applications.

The output current of the module can be raised up to 10A(for continuous use it is recommended up to 6A. MOS Schottky diode independent heat sink, which heat dissipation is good, and won’t affect each other. Also using large size Sendust Core and double pure copper wiring, improve working efficiency, reduce fever.

The module has onboard 3296 multiturn potentiometers for high accuracy voltage and current regulation to provide good stability. As voltage and current are adjustable, it gives very easy to use at multiple Application such as battery charging, LED Driver power supply; Vehicle Power Supply, etc which makes the module Multipurposeand hence this module is always in demand from our maker because of its wide range of application and low cost.

This is XH-W3001 AC 220V 1500W Digital Temperature Controller Microcomputer Thermostat Switch. A temperature measurement and Controller tool with high accuracy and precision at a very low cost.

It offers a high-temperature control precision of 0.1℃. The temperature control range from -50℃ to 110℃.

The LED display shows the results clearly. One can directly install or embed the XH-W3001 in industrial control equipment panel, convenient and quick.

The Nano 33 BLE Sense (with headers) is Arduino’s 3.3V AI enabled board in the smallest available form factor: 45x18mm! The Arduino Nano 33 BLE Sense is a completely new board on a well-known form factor. It comes with a series of embedded

sensors:

9 axis inertial sensor: what makes this board ideal for wearable devices humidity, and temperature sensor: to get highly accurate measurements of the environmental conditions barometric sensor: you could make a simple weather station microphone: to capture and analyse sound in real time gesture, proximity, light color and light intensity sensor : estimate the room’s luminosity, but also whether someone is moving close to the board

For anyone who loves to utilise Batteries for electronics projects and other applications, battery health is quite an important factor to consider, as you will want your batteries to not only last a long time, but also continue to deliver the power you want for as long as possible throughout their lifespans. Fortunately, this is a lot easier to do nowadays, with awesome Charging Modules like XY-L30A BMS 6-60V 30A Lithium Battery Charging Protection Module with LCD Display, which is a battery-health charging control unit designed to keep batteries or Cell Packs ranging between 6V and 60V DC fully charged, electrically healthy, and of course ready to deliver the power that you want to rely on, when you need it most.

In addition to the very clever collection of automatic battery protection and Battery Charging features, the XY-L30A Charge Module also offers a range of extra features focused on convenience for the user. These include the ability to define a maximum and minimum voltage range for charging, a handy recharge timing function, automatic battery detection and parameter setting, as well as an extra safety feature to let the user know when the battery or cell pack is not connected properly.

These features, in addition to the high quality components and easy usability of these Modules, make the XY-L30A Charge Module an excellent tool for anyone who likes to take care of their batteries, with safety features, a range of functions focused on convenience, as well as a fantastic onboard LCD display for easy operations and quick battery status identification.

This signal generator DIY kit is professional product to generate sine/triangle/square wave. It's a DIY kit for you to weld and install.

Features:

High resolution, can generate sine/triangle/square waveforms. Frequency range: 1Hz-1MHz. Adjustable frequency and amplitude. Frequency adjustment features coarse tuning and fine tuning. Wide power supply range, use 9-12V external power or 9V battery(NOT Included). All are through hole components, easy for installation.

The W5100 Ethernet Module is a full-featured, single-chip. This Ethernet controller is designed for embedded applications; where ease of integration, stability, performance, area and system cost control are requires.

The W5100 Ethernet Module has been designed to facilitate easy implementation of Internet connectivity without OS. W5100 is IEEE 802.3 17 BASE-T and 802.3u 10 BASE-TX compliant.

The W5100 includes fully hardwired, market-proven TCP/IP stack and integrated Ethernet MAC & PHY. Hardwired TCP/IP stack supports TCP, UDP, IPv4, ICMP, ARP, IGMP and PPPoE which has been proven in various application for several years. A 16kbytes internal buffer is included for data transmission.

The PN532 is a highly integrated transmission module for contactless communication at 13.56 MHz including microcontroller functionality based on an 80C51 core with 40 Kbytes of ROM and 1 Kbytes of RAM. The PN532 combines a modulation and demodulation concept completely integrated for different kinds of contactless communication methods and protocols at 13.56 MHz with an easy-to-use firmware for the different supported modes and the required host controller interfaces.

It works as RFID reader/writer,1443-A card or a virtual card and also supports NFC with Android phone. It is also compatible with Arduino..

XL7015 DC-DC buck type module is a highly efficient, high-pressure step-down DC-DC converter, provides the highest 0.8 A output current capability, low ripple, excellent linear regulation and load regulation, up to A maximum of 80 v input voltage, more than 2596 modules, etc. Chip built-in various protection mechanisms. It can be applied to an electric vehicle controller, etc..

W1209 thermostat module has a temperature sensor, keys, LED display, relay and requires DC 12V power supply. It is an affordable, good quality thermostat controller. Thermostats are devices that sense the temperature of a system so that the temperature is maintained at the desired set point or near to it. NTC temperature sensor allows the module to intelligently control varied electrical devices based on the temperature. NTC thermistor has a negative temperature coefficient, which means the resistance decreases with increasing temperature. W1209 has an inbuilt embedded micro-controller, thus not much programming knowledge is required. The module consists of three switches to configure the various parameters including ON and OFF trigger temperatures. The relay can operate at voltages up to a maximum of 240V AC at 5A or 14V DC at 10A to power on. The temperature is displayed in degree centigrade and with the help of 7-segment display and the relay, the state is displayed with the help of the LED present on the W1209 module.

Monster Moto Shield VNH2SP30 Motor Driver 14A is essentially a ramped-up version of our Ardumoto motor driver shield. For this Monster Moto Shield, we’ve replaced the L298 H-bridge with a pair of VNH2SP30 full-bridge motor drivers. We’ve also beefed up the support circuitry so this board is capable of driving a pair of high-current motors! The VIN and motor out are pitched for our 5 mm screw terminals (not included), making it easy to connect larger gauge wires.

Note:

When using this board in extreme high-demand applications it may be necessary to improve thermal performance with a heat-sink or fan and to solder the wires directly to the board instead of using a screw terminal (in addition to the myriad other complications present in a high-current system) However, when using the board at currents up to 6A the chips will barely become noticeably warm.

The AD9833 is a low power, programmable waveform generator capable of producing sine, triangular, and square wave outputs. Waveform generation is required in various types of sensing, actuation, and time domain reflectometry (TDR) applications. The output frequency and phase are software programmable, allowing easy tuning. No external components are needed.

The AD9833 has a standard serial interface that allows the part to interface directly with several microprocessors. The device uses an external serial clock to write the data or control information into the device.

The AD9833 is written to via a 3-wire serial interface. This serial interface operates at clock rates up to 40 MHz and is compatible with DSP and microcontroller standards. The device operates with a power supply from 2.3 V to 5.5 V.

The AD9833 has a power-down function (SLEEP). This allows sections of the device that are not being used to be powered down, thus minimizing the current consumption of the part, e.g., the DAC can be powered down when a clock output is being generated.

This Module can convert PWM digital signal into 0 to 10V analog signals. This Product can be used in the PLC or other industrial panel switch signal interface by adjusting the PWM duty ratios to adjust output voltage. Module size is small, easy to apply in different places.

Features:

Using single chip embedded technology Easy to operate, can be fine-tuned by potentiometer Select the PWM signal input level range through short cap Module is small, easy to carry and use

A small WM Vibration Motor Switch Toy Motor Sensor Module DC Motor Mobile Phone Vibrator DIY Kit Board sensor suitable as a non-audible indicator. When the input is high, the motor vibrates, just like your silent mode phone. The vibration intensity of the motor can be controlled by PWM; moreover, this module can easily convert electrical signals to mechanical vibration. Applications of this device include vibration-sensitive interactive products, wearable smart device, vibration reminders, etc.

MPR121 is a capacitive touch sensor controller driven by an I2C interface. The chip can control up to twelve individual electrodes, as well as a simulated thirteenth electrode The MPR121 also features eight LED driving pins, when these pins are not configured as electrodes, they may be used to drive LEDs. There are four jumpers on the bottom of the board, all of which are set (closed) by default. An address jumper ties the ADD pin to the ground, meaning the default I2C address of the chip will be 0x5A. If you need to change the address of the chip (by shorting ADD to a different pin), make sure you open the jumper first. Jumpers also connect SDA, SCL, and the interrupt pin to 10k pull-up resistors. If you do not require the pull-up resistors you can open the jumpers by cutting the trace connecting them.

CCM5D DC Motor Speed Regulator controls the speed of a DC motor by adjusting Pulse-Width-Modulated (PWM).It has operating voltage of 6V-30VDC and current capacity of 8A. It also comes with switch to ON-OFF the system.

Features:

The display range of 3-digit LED display is "000"-"100".

Adjustable speed range is 0%-100%

Fine workmanship and good performance.

Easy to use.

Long service life.

Suitable for the DC motor (or DC load) within 5A, Peak current 8A.

Incorporate a push key. Push closed, and then push open

The 5-36V SWITCH DRIVE HIGH-POWER MOSFET TRIGGER MODULE is of high power MOS trigger switch driver module and control board with a field-effect tube to adjust the electronic switch. It adopts imported double MOS parallel active output to show lower internal resistance, greater electric current, and power.

Besides it works at 15A, 400W under a common temperature which satisfies most devices usage and realizes the control of great power devices in a relaxed way. What’s more, it can be applied to power devices which could be controlled by output terminals like electric motors and light bulbs to control the speed of the motor and the light of bulbs.

The use of imported dual-MOS parallel active output, lower resistance, more current, strong power at room temperature, 15A, 400W, to meet the most use of the equipment. Wide voltage, the perfect support for PWM. Easily control high power devices. Input PWM to achieve motor speed control, lamp brightness control.

Module Type Step-Up (Boost) Input voltage 12V-60V Input Current Maximum input current 15A Output voltage 12V-80V adjustable Output Current Maximum output current 10A Output Power 600W Short circuit protection Fuse (Input 20A Fuse) Overcurrent protection Yes Input reverse polarity protection None, (if necessary please enter the string into the diode) Operating frequency 150KHz Minimum voltage difference 2V Conversion Efficiency Up to 95% Dimension 76 * 60 * 56mm (L * W * H) Weight (gram) 250 g

The E18-D80NK Adjustable IR Sensor Proximity Switch 3-80cm Range is a set of transmitter and receiver in one of the photoelectric switch sensor. The detection distance can be adjusted according to the demand. The sensor has a detection range of 3-80cm.

The Adjustable Infrared Sensor Switch is small, easy to use, inexpensive, easy to assemble and can be widely used in a robot to avoid obstacles, interactive media, industrial assembly lines, and many other occasions.

The switching signal output differs in accordance with the obstacles. It remains high when no obstacles and remains low when there are obstacles. There is a bright light behind the probe to detect the scope of 3cm – 80cm.

CJMCU-TRRS 3.5mm Audio MP3 Stereo Headphones Video Microphone Interface Module comes with the audio-style connectors that you see on phones. It is widely used in MP3 players and development boards.

TRRS stands for “Tip, Ring, Ring, Sleeve,” which reflects the fact that, unlike a standard stereo connector. This actually has three conductors and a ground. Some devices use the extra conductor for a microphone (like hands-free headsets) or to carry a video signal (like in some MP3/MP4 players).

This breakout board makes it easy to add a TRRS jack to your prototype or project by breaking out each conductor to a standard 0.1 spaced header.

1200W DC DC Boost Step Up Converter 8-60V to 12-83V 20A is a DC-DC constant current boost converter power supply module with DC 10-60V voltage input and DC 12V-83V output voltage. The input and output of the module are designed with screw terminals for convenient wire connection or disconnection. Besides, it equipped with a big heat sink and cooling fan for better dissipation which can help your project a lot. You can also use the module as a driver for high power LED lights or voltage regulator for solar panels.

The module has two multiturn 3296 potentiometers one to adjust the output voltage and one to adjust the output current.

Pixy2 is smaller, faster and more capable than the original Pixy. Like its predecessor, Pixy2 can learn to detect objects that you teach it, just by pressing a button. Additionally, Pixy2 has new algorithms that detect and track lines for use with line-following robots.

The new algorithms can detect intersections and “road signs” as well. The road signs can tell your robot what to do, such as turn left, turn right, slow down, etc. And Pixy2 does all of this at 60 frames-per-second, so your robot can be fast, too.

The HDC1080 is a digital humidity sensor with integrated temperature sensor that provides excellent measurement accuracy at very low power. The HDC1080 operates over a wide supply range, and is a low cost, low power alternative to competitive solutions in a wide range of common applications. The humidity and temperature sensors are factory calibrated.

This USB Output Step Down Power Charger supports 6-24V voltage input and 5V 3A output with input polarity reverse protection and output overvoltage protection, short circuit protection.

It adopts synchronous rectification technology ensure ultra-high power conversion up to 97.5% to take full use of your input power. On-board female type A USB port with identification circuit perfectly fit for iphone iPad and Android smartphones as well as it can be useful to power or recharge any electronic gadget which required 5V input power up to 3A.

XL6009 LM2596 DC-DC Step Up Down Boost Buck Voltage Power Converter Module is a non-isolated Step up and step down ( boost as well as buck) constant voltage (CV) DC-DC converter Module. The main advantage of using this module is the output voltage remains fixed even if the input voltage goes below or above the set voltage. This module has Output voltage independent of input voltage (3.5V-28V input, any value output 1.25V-26V).

In this you can set the output voltage anywhere from 1.25 volts to 26 volts and even if the input voltage varies from 3.5 volts to 28 volts the output voltage will remain fixed as per the set voltage (which can be adjusted using on-board trim pot).

This module is perfect for solar application where you want to give constant 12 to 14 volts to charge your battery but the the output of the solar panel varies according to the sunlight.

This is a 5V 700mA power supply module . Which can be used to power any DIY projects that can be operated via 5VDC. The module has a power rating of 3.5W.

Features:

Ultra-thin and ultra-small size

Supply Voltage: 220VAC

Low ripple and low noise

Output overload and short circuit protection

High efficiency

High power density

The product is designed to meet the requirements of the EMC and Safety Test

Low power consumption

Environmental protection

Meets UL and CE requirement

Max 8A 200W DC-DC Step Down Buck Converter Power Supply XL4016 PWM Adjustable 4-40V To 1.25-36V Step-Down Board Module

TJA1050 CAN Controller Bus Driver Interface Module is the interface between the Controller Area Network (CAN) protocol controller and the physical bus. The device provides differential transmit capability to the bus and differential receive capability to the CAN controller. The TJA1050 is the third Philips high-speed CAN transceiver after the PCA82C250 and the PCA82C251. The most important differences are:

Much lower electromagnetic emission due to optimal matching of the output signals CANH and CANL Improved behavior in case of an unpowered node No standby mode. This makes the TJA1050 eminently suitable for use in nodes that are in a power-down situation in partially powered networks.

REES52 Charge Control Module 12-24V Battery Protection Board for Lead Acid Battery and Lithium Battery

Product Introduction:

1.Input Voltage:DC 10-30V

2.Display Precision:0.1V

3.Control Precision:0.1V

4.Output Type:direct output

5.Voltage Tolerance:+/-0.1V

6.Application Fields:12-24V storage battery

7.Size:82x58x18mm

Using Method:

1.Set Starting Voltage:in normal display voltage state,press the button will display start charging voltage;long press for 3s the digital tube will flash;you can start or stop button to set starting up charge voltage value

2.Set Stop Voltage:in normal display voltage state,press the button will display stoping charge voltage;long press the button for 3s the digital tube will flash;you can start or stop button to set stoping charge voltage value

3.Factory Reset:in power on state press the start/stop button at the same time,digital tube will display 888;that represents factory reset settings

PWM DC 3V 6V 12V 24V 35V 5A Motor Speed Regulator Control Switch is a Mini Style DC Motor Speed Regulator controls the speed of a DC motor by adjusting Pulse-Width-Modulated (PWM).

Features:

Mini DC 4.5-35V 5A PWM Motor Speed Controller.

Wide voltage DC motor speed controller.

Operating voltage: DC4.5V-35V

Output current: 0-5A

Output power: 90W (max)

PWM duty cycle: 1% -100%.

10000W Super Power Thyristor Electronic Voltage Regulator, Adjust Light Speed Temperature has new two-way large power silicon controlled rectifier and the current can be up to 80A, which is a good solution to over-current of electric stove wire caused by low resistance during cooling. It can easily adjust the output voltage on a scale of 0-100% (nonlinear) to power electric device. It has been designed with large and thick heat sink that would enhance heat dissipation. This voltage regulator is adjusted with button which is much more stable than potentiometer. Voltage regulator has wave voltage absorbing circuit and effective protects large power silicon controlled rectifier, longer service life and more durable.

It is suitable for water heater heat transfer, lighting dimming, small motor speed, electric iron thermostat and so on

This is 4×4 Matrix 16 Keyboard Keypad Telephone Style. It is 16 Button Keypad switch, ideal for code or data entry. Each key is rated for up to 1,000,000 life-stroke and also features a durable high-quality material contact surface for best environmental resistances.

This 4×4 Keypad Matrix lets you quickly add controls to your electronics projects. It offers 0-9 numerals, A-D letters, and standard star(*) and hash(#) symbols.

This XH-M602 Digital Battery Charging Control Module is used to charge batteries. The module has an input terminal for the 220V AC and an output terminal connected through an onboard relay. The module has a high-quality plastic transformer and a bright seven-segment three-digit display. The module can actively monitor the battery voltage through the Vin terminal and disable the 220V output connected to the battery charger when the battery is fully charged.

The 5000W AC 220V High-Power Electronic Regulator SCR Voltage Regulator Module can be connected to a lamp or home appliance or electric circuit, then through the keys Adjust the speed, brightness, voltage, temperature.

Features :

High-temperature FR-4 PCB

100% High quality and Brand new

Control the speed of a Brushed AC motor with this controller

High efficiency, high torque, low heat generating

Aluminum sheet cooling, rapid cooling

With reverse polarity protection, high current protection

High-temperature resistant FR – 4 circuit board.

Max232 RS232 to TTL Serial Interface Module is a board with the MAX3232 transceiver integrated circuit (IC). It facilitates serial communication between TTL and RS232 ports by providing the necessary electrical signal conversion.

These boards have a DB9 connector soldered at one end, and four header pins with jumper cables at the other end. The jumper cables enable the user to connect the wires to a breadboard or a microcontroller project board, whilst the DB9 connects directly to a COM port of a computer. This module can be used to the serial port of microcontroller module expand DVD, router, hard drive and other equipment to upgrade.

0.28 inch Digital Voltmeter Ammeter DC 0-100V 10A Dual LED Red Blue Monitor Panel is a small size, portable, the magnitudes of voltage and current are displayed in the same screen simultaneously. This can be supplied anywhere from 4.5 volts DC up to 30 VDC. This is a separate power supply that is isolated from the source, it is possible to use the same supply but it seems to affect the amp meter reading.

Features :

It measures up to 100V and 10A DC.

Very handy and small in size.

It requires a power supply of 5V

The patented product, neutral packaging production, with simple dustproof waterproof surface, with full PROTECTIONS cover. The color liquid crystal material, light clear display, display the soft night. To customize the type of battery, suitable for lead-acid, lithium-ion batteries, lithium iron phosphate, metal hydride battery. To display the percentage of remaining battery power,voltage, temperature value.

The 10~100V wide input voltage,reverse PROTECTIONS.

The product can go to sleep after 10 seconds.

The low power red mark flashes to remind.

The installation is simple, with a buckle, without screws.

The open programming mode.

Low beep alarm, adjustable alarm voltage

XH-M603 Charging Control Module is a 12-24V Storage Lithium Battery Charger Control Switch Protection Board With LED Display. It is used in variety of applications.

Features:

Automatic control circuit connection

Automatic charging and power off

Real-time voltage monitor

Autosave setting

ST core chip

LM2596 switch voltage regulator

The CJMCU TCA9548A I2C 8 Channel Multiple extensions development board is interesting in that it has an I2C address (0x70 by default) – and you basically send it a command to tell it which I2C multiplexed output you want to talk to, then you can address the board you want to address.

Features :

1-to-8 Bidirectional Translating Switches.

Supports Hot Insertion.

Low Standby Current.

1-to-8 Bidirectional Translating Switches.

Active-Low Reset Input.

Power Up With All Switch Channels Deselected.

I2C Bus and SMBus Compatible.

5-V Tolerant Inputs.

Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II.

The Raspberry Pi NoIR Camera V2 is the “night vision” version of the official camera board released by the Raspberry Pi Foundation. The Raspberry Pi NoIR Camera Board V2 has no Infrared filter, which makes it perfect for taking Infrared photographs or photographing objects in low light (twilight) conditions! Custom designed and manufactured by the Raspberry Pi Foundation in the UK, the Raspberry Pi NoIR Camera Board V2 features an ultra-high quality 8 megapixel Sony IMX219 image sensor (up from 5MP on the V1 camera board), and a fixed focus camera lens. The V2 camera module is capable of 3280 x 2464 pixel static images, and also supports 1080p30, 720p60 and 640x480p90 video.

The module attaches to Raspberry Pi by way of a 15 Pin Ribbon Cable, to the dedicated 15-pin MIPI Camera Serial Interface (CSI), which was designed especially for interfacing to cameras. The CSI bus is capable of extremely high data rates, and it exclusively carries pixel data to the BCM2835 processor.

The board itself is tiny, at around 25mm x 23mm x 9mm, and weighs just over 3g, making it perfect for mobile or other applications where size and weight are important.

1) Power Supply:12V DC

2) Temperature Control Range:-55°-120°

3) Resolution Ratio: 0.1°C(-9.9-99.9); 1°C(other range)

4) Color of Displaying: red/blue Measurement accuracy: ±0.1°C

5) Control accuracy: 0.1°C

6) Sensor: NTC10K Waterproof sensor

Output: Relay Contact Capacity 10A 250V / 20A 12V / 20A 24V Environmental requirements: -10-60°C , humidity 20%-85%RH Dimension:79mm *43mm*26mm Cutting Size:73mm*39mm Sensor wire: 1 meter 2 mode:Cooling or heating Set maximum/minimum upper limit temperature to avoid accidents. Automatically start cooling or heating constant temperature. Temperature calibration. Temperature can be calibrated as required. High temperature alarm, when the temperature reaches the set temperature, the controller will alarm.

The AC Dimmer is designed to control the alternating current voltage, which can transfer current up to 600V/16А. In most cases, Dimmer is used to turn power ON/OFF for lamps or heating elements, it can also be used in fans, pumps, air cleaners, e.t.c.

Lately, Dimmer has become an often used decision for the smart home systems. For example, when you need to smoothly change the light brightness. The lamp is slowly turning ON or OFF, creating a comfortable atmosphere. Dimmer works most effective with filament lamps. It’s less stable with low brightness dimmable LED lamps, but with moderate and high brightness it will perform a solid job. Note that luminescent lamps (gas discharge lamps) do not support dimming.

Power part of dimmer is isolated from the control part, to exclude the possibility of high current disruption to a microcontroller.

The logical level is tolerant to 5V and 3.3V, therefore it can be connected to the microcontroller with 5V and 3.3V level logic.

In Arduino, dimmer is controlled with RBDdimmer.h library, which uses external interrupts and process time interrupts. It simplifies the code writing and gives more processing time for main code. Which is why you can control multiple Dimmers from one microcontroller.

You can download RBDDimmer.h library and a few examples in «Documents» or on GitHub. We are constantly updating our library, so we recommend to check for the website updates or subscribe to our newsletter.

Dimmer is connected to Arduino controllers via two digital pins. First (Zero) to control the passing of Phase Null of AC, which is used to initiate the interrupt signal. Second (DIM/PSM) to control (dim) current.

Note that Zero requires connection to designated microcontroller pins (which are different depending on the model of Uno, Nano, Leonardo, Mega), since it tied to microcontroller interrupts.

The OpenMV Cam M7 Smart Vision Camera is a small, low power, microcontroller board that allows you to easily implement applications using machine vision in the real world. You program the OpenMV Cam in high-level Python scripts (courtesy of the MicroPython Operating System) instead of C/C++.

This makes it easier to deal with the complex outputs of machine vision algorithms and working with high-level data structures. But, you still have total control over your OpenMV Cam and it’s I/O pins in Python. You can easily trigger taking pictures and videos on external events or execute machine vision algorithms to figure out how to control your I/O pins.

The OV7725 image sensor is capable of taking 640×480 8-bit grayscale images or 640×480 16-bit RGB565 images at 60 FPS when the resolution is above 320×240 and 120 FPS when it is below. Most simple algorithms will run at above 30 FPS. Your OpenMV Cam comes with a 2.8mm lens on a standard M12 lens mount. If you want to use more specialized lenses with your OpenMV Cam you can easily buy and attach them yourself.

This is tiny and compact digital voltmeter with LED Display. The DC 4.5-30V 2 wire LED Display Digital Voltage Voltmeter Panel requires only a few minutes of configuration and is as simple as directly connecting wires to the source you want to measure and seeing the LED blink!!!!

The red wire is to connect to the positive pole, the black wire is to connect to the negative pole. No need to worry even if there is any connection mismatch of the wires, the electric circuit won’t be a boom because it features reverse polarity protection.

This voltmeter doesn’t need external drive working power, it can work with measuring voltage, the working voltage’s range is 4.5-30V. To reach the best measurement accuracy, this voltmeter will automatically move the decimal point’s position according to the different measuring voltage. When it measures the voltage below 10V, it will display two places after the decimal point. When it measures the voltage above 10V, it will display one place after the decimal point.

This voltmeter can be used to measure the storage battery’s voltage in motorcycles and cars and also can grasp the storage battery’s status. It also can be used to measure other voltage. 30V is the voltmeter’s maximum operating limited voltage, please leave enough margin when working, to avoid voltmeter’s permanent damage because of an electrical spark, power supply ripple, or other too high abrupt change of voltage.

Very bight and decent LED Display is ready to measure the dc voltages in the range of 4.5V to 30V.

The 5V 2A Large Current Wireless Charger Module Transmitter Receiver Charging Coil Module is for a variety of small electronic products, wireless charging, power supply development, and design, with a small size, easy to use, high efficiency, low price characteristics.

It is mainly used in mobile electronics products such as for charging the mobile phone wirelessly, game machines, tanks, MP3, MP4, adult products, digital cameras, electric shavers, machine learning, health care, etc. Due to the adoption of a Contactless charging power supply, to complete sealing of the products, waterproof and dustproof; increase product service life, use more convenient.

10000W High Power SCR BTA100-800B Electronic Voltage Regulator Module increases the heat sink, more stable performance plus secure shell, more secure and reliable.

If you take a few 1000 W of power, the housing will heat (SCR 100A heat at around 70 degrees in normal). Preferably a self-imposed cooling fan.

DC 3V-20KV 20000V Boost Step Up Power Module High Voltage Generator module uses the principle Tesla coil is made of high-voltage pulse output voltage current, small size, high efficiency, simple external circuit (just plug in the switch, the battery can be discharge intensity violent).

Double high voltage cable can ignite cigarette and paper, a single high voltage cables can provide power to a metal body, and no sound support. The module can be used as high-school scientific experiments, electronic devices, negative-ion generator, high-voltage source, to use when small science.

Over power: Single 18650 or idle mobile phone batteries (the protective plate to remove the planned capacity of 2000mAh or more).

12V 24V 48V 40A DC Motor Speed Regulator PWM Controller 2000W is a PWM speed controller which enables you to control the speed of those DC brush motors smoothly. It's great for applications like car motors, DC heater, bulb etc. providing nice adjustment of motor speed. Its best speed controller for higher current rating and wide voltage range with best reliability.

Voltage range can be utilize in engineering system and e-bike motors to speed control.

The ESP32-CAM is an Ai-Thinkers Original ESP32 CAM WiFi+Bluetooth with OV2640 Camera Module based on the ESP32 chip with the additional facility of using a camera. It is ideal for various IoT applications. The ESP32-CAM has a very competitive small-sized camera module that can operate independently as a minimum system. Ai-Thinker ESP32 CAM can be widely used in various IoT applications. It is suitable for home smart devices, industrial wireless control, wireless monitoring, QR wireless identification, wireless positioning system signals and other IoT applications. It is an ideal solution for IoT applications.

ZMPT101B AC Voltage Sensor is the best for the purpose of the DIY project, where we need to measure the accurate AC voltage with a voltage transformer. This is an ideal choice to measure the AC voltage using Arduino/ESP8266/Raspberry Pi like an opensource platform. In many electrical projects, engineer directly deals with measurements with few basic requirements like High galvanic isolation, Wide Range, High accuracy, Good Consistency.

Onboard precision miniature voltage transformer, The active phase AC output voltage transformer module. Onboard precision op-amp circuit, the signal sampling and appropriate compensation for precise functions. Modules can be measured within 250V AC voltage, the corresponding analog output can be adjusted. It is brand new, good quality high performance.

Want to increase the audio output capability of your project? Well then this is the perfect module for you. This module is based on famous TDA2030 Audio Amplifier Module which is capable of 18 watt power output with very low harmonic distortion.

Specification of TDA2030 Audio Amplifier Module:-

On board TDA2030A Audio amplifier Board

Mono channel 18W Power amplifier circuit design

On board horn socket

On board 10 k adjustable resistance, can adjust the volume of the amplification

On board power indicator light

Chip has lead to the main pin, can directly input audio signal

Working voltage:6-12V

PCB size:32(mm)x24(mm)

Hi-Link 5V 0.6A power converter module (HLK-PM01) is a 3W power supply module. It features low current and wide input voltage range. The main function of the Hi-Link power converter module is to convert electric current from a source to the correct voltage, current, and frequency to power the load.

They provide electrical protection in the form of fuses or breakers, may display alarms in the case of abnormal operation and provide a mean to connect the DC output via properly chosen connectors.

Robocraze Digital Infrared Temperature Sensor MLX90615 GY-90615 Module RC-A-061

A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is, type: rasp pi accessories, power supply: 3v-5v,

current: 1ma

The circuit produces an output of 5V and 1A, it is mainly used in cell phone chargers, microcontrollers, Bluetooth/WiFi modules etc. The circuit board converts an input voltage of 220V AC and converts it into a 5V DC output. The circuit has a transformer which steps down the voltage from 220V AC to 5V AC, The four diodes in the circuit act as a rectifier which converts the AC voltage to DC voltage.

The circuit consists of numerous resistors and capacitors, which acts as filters. The resistors and capacitors smooth the current and the voltage flow giving an approximate, average voltage value that is required)

MCP4725 I2C DAC Breakout Development Board Module has MCP4725 which is an I2C controlled Digital-to-Analog converter (DAC). A very cost-efficient option of DAC allows you to send an analog signal, such as a sine wave, from a digital source, such as the I2C interface on the Arduino microcontroller. Digital to analog converters are great for sound generation, musical instruments, and many other creative projects!

This version of the MCP4725 Breakout came up with few fixes for an issue with the board including the IC footprint, the I2C pinout, changes the overall board dimensions to better fit your projects, and a few more minor tweaks than its previous versions.

This board breaks out each pin you will need to access and use the MCP4725 including GND and Signal OUT pins for connecting to an oscilloscope or any other device you need to hook up to the board.

LTC1871 DC-DC 3.5-30V 6A 100W Adjustable Step-Up Boost Converter Module is a automatic booster module provides stable power. Suitable for unstable voltage source or voltage conversion.

This display part adopts advanced voltage meter microprocessor,boosting part adopts LTC1871 controller, through the use of the power MOSFET on resistance and save the current detecting resistor, maximizing it efficiency to 96.4%.

Incorporate high power low resistance MOS pipe, large package, high current, high efficiency Schottky, super wide thickened wire of PCB low temperature rise, high power and high efficiency. Ultra wide working voltage,when the input and output voltage is above 20V it can be up to 128W of output power. Long life type switching power supply special high frequency high capacity and low resistance (low ESR) aluminum electrolytic capacitor to lower output ripple. Module chip used are imported materials, stable performance.

XL6019 (Upgrade to XL6009) DC-DC Module Step Up/Down Boost/Buck Output Power Supply Module, Adjustable, 20W

Xlsemi chip, 94% efficiency, upto 220 khz operating frequency.Smd electrolytic capacitors and mlcc (Multi Layer Ceramic Capacitors)

MAX6675 K-Type Thermocouple Temperature Sensor performs cold-junction compensation and digitizes the signal from a type-K thermocouple. The data is output in a 12-bit resolution, SPI™-compatible,read-only format.

MAX6675 converter resolves temperatures to 0.25°C, allows readings as high as +1024°C, and exhibits thermocouple accuracy of 8 LSBs for temperatures ranging from 0°C to +700°C.

Lithium-ion batteries are common in home electronics. They are one of the most popular types of rechargeable batteries for portable electronics, with a high energy density, tiny memory effect[8] and low self-discharge. Beyond consumer electronics, LIBs are also growing in popularity for military, battery electric vehicle and aerospace applications.[9] For example, lithium-ion batteries are becoming a common replacement for the lead–acid batteries that have been used historically for golf carts and utility vehicles.

Instead of heavy lead plates and acid electrolyte, the trend is to use lightweight lithium-ion battery packs that can provide the same voltage as lead-acid batteries, so no modification to the vehicle's drive system is required.

SIM800L V2.0 5V Wireless GSM GPRS MODULE power supply for 5 v, computer debug USB to TTL serial port. Power to the output current of 800 ma, TTL serial interface is compatible with 3.3 V and 5 V micro-controller, can be directly after purchase and single-chip computer connection.

The IPX antenna, the antenna interface can be arbitrary switching PCB glue stick antenna and suction cups. SIM800L 4 frequency communications, data available in the world. Do foreign trade and foreign trade projects preferred.

SIM800L V2.0 GSM/GPRS Module is a QUAD-BAND GSM/GPRS module which compatible with Arduino. The module works to add both of GSM features (voice call or SMS) and GPRS features. The advantages of these modules are the VCC and TTL serial levels that have 5V voltage, so you can directly connect it to Arduino or another minimum system with 5V of the voltage level.

There are so many GPRS/GSM modules on the market which need to add 5V regulator and level converter circuit, while SIM800L V.2 GSM/GPRS module already has a built-in regulator circuit and TTL level converter on the board.

This is a custom ESP32 (ESP-WROVER-B 8MB PSRAM) based development board with an onboard 2G/GPRS Module SIM800L. The USB Type C pluggable board also has an onboard LiPo Battery Charging Circuit & Connector and is a good choice for building IoT applications

INVENTO SIM800L with ESP32 Node MCU Wireless Communication Module GSM GPRS Antenna Sim Card Module

Package Include 1 x SIM800L with ESP32, Chipset: ESPRESSIF-ESP32 (Wi-Fi & Bluetooth)240MHz Xtensa single-/dual-core 32-bit LX6 microprocessor

Standard Raspberry Pi 40PIN GPIO extension header,

supports Raspberry Pi series boards

Supports SMS, phone call, GPRS, DTMF, HTTP, FTP, MMS, email, etc.

Support GPS, COMPASS, Glonass, LBS base station positioning,

Omni-positioning

Bluetooth 3.0, supports data transferring through Bluetooth

Onboard USB TO UART Converter CP2102 for UART debugging

6x LEDs for indicating the module working status

SIM card slot for 1.8V/3V SIM card

RTC with backup battery holder

Baudrate auto-detection (1200bps ~115200bps)

Control via AT commands (3GPP TS 27.007, 27.005, and SIMCOM enhanced AT Commands)

Supports SIM application toolkit: GSM 11.14 Release 99

The GUVA-S12SD UV Sensor chip is suitable for detecting the UV radiation in sunlight. It can be used in any application where you want t0 monitor for the amount of UV light and is simple to connect to any microcontroller.

This is a GSM Antenna having a frequency of 824 – 960 MHz & 1710 – 1980 MHz with 28dBi gain. The antenna is a wireless device to receive and transmit signals, it has been widely used in telecommunication to communicate. One of the main reasons to use a sticker antenna is the reduced overall cost of the radio module

4000W 220V AC SCR Voltage Regulator Dimmer Electric Motor Speed Controller can be used to control 220V Appliances. It can be used as a light dimmer, fan speed controller, stove temperature controller. It is easy and simple to use and can control appliances up to 4000W!

Just give AC input to the module and connect the appliance at the output of the module, then use the onboard potentiometer knob to adjust and set the required power output from your 220V Device.

STC-1000 220V AC All Purpose Digital Temperature Controller Thermostat Module is a temperature measurement and Controller tool with high accuracy and precision at a very low cost. It offers a high-temperature control precision of 0.1℃. The temperature control range from -50℃ to 99℃.

The LED display shows the results clearly. One can directly install or embed the STC-1000 in industrial control equipment panel, convenient and quick. It features a 1M probe made up of stainless steel material which makes it waterproof and does not let it rust easily. Also, all the delicate and sensitive components are kept safe in ABS flame retardant housing which is avirulent and environmental protective.

This DC 12V KK-P20/15 2.5KG Lifting Solenoid Electromagnet consists of an iron core and a coil to attract magnetic substances, using the magnetic action induced by electric current, only while the current is applied. This compact functional device offers high power with high reliability. The structure and design to release the residual magnetism left after de-energization is also one of its unique features.

Working Principle:

An electromagnet is simply a coil of wire. It is usually wound around an iron core. However, it could be wound around an air core, in which case it is called a solenoid. When connected to a DC voltage or current source, the electromagnet becomes energized, creating a magnetic field just like a permanent magnet. The magnetic flux density is proportional to the magnitude of the current flowing in the wire of the electromagnet.

The polarity of the electromagnet is determined by the direction of the current. The north pole of the electromagnet is determined by using your right hand. Wrap your fingers around the coil in the same direction as the current is flowing (conventional current flows from + to -). The direction your thumb is pointing in the direction of the magnetic field so north would come out of the electromagnet in the direction of your thumb. DC electromagnets are principally used to pick up or hold objects

Dc 3V To 6V Submersible Pump

DIY Dc Water Pump

Micro Mini Submercible Water Pump 3V To 6V

dimension: 45 x 24 x 30 (lxhxb)mm

This SHARP distance sensor bounces IR off objects to determine how far away they are. It returns an analog voltage that can be used to determine how close the nearest object is. Comes with 12″ long 3-JST interface wire. These sensors are good for short-range detection. For over 1 m distance, we suggest using sonar sensors

To use, connect the black wire to ground, red wire to 5V and white wire to the analog input. The analog voltage out will range from 3V when an object is only 4″ (10 cm) away and 0.4V when the object is 32″ (80 cm) away.

This NE555 Delay Monostable Switch Module item is a timer switch module, based on the NE555 chip, high-performance timing CPU design. The power indicator LED and switch trigger timing indication LEDs. Timing from microseconds to long hours. Applicable to vehicle equipment-delay to prevent car ignition, prevention of high sudden current to burn components and devices.

This is a monostable generator based on the NE555 integrated circuit. It has an adjustable delay time from 0 to 10 seconds using the potentiometer or by changing the capacitance. It is also capable of controlling the device below 220V/10A.

Modeling simple, elegant, LCD panels inline connections, moisture-resistant, strong anti-interference, applies to refrigerated cabinets, display counters and other needs of temperature measurement and display of various equipment. Submerge probe into fish tank to measure water temperature (Submerge probe only, do not submerge thermometer in water)

Description:

Produce name: Digital Thermometer

Style: LCD display

Temperature Range: -50 C ~ +70C

Temperature display resolution: 0.1

Temperature measurement accuracy: ±1°C

Power by: 2 x LR44 button batteries. (Battery Not Included)

Long probe line: 1 meter molded case probe

Cable length: 80cm/31.50' appr.

Size: 47*28*14mm

This ac current sensor used for measuring alternating current, particularly used for whole building consumption or generation.

This split core transformer is particularly suitable for DIY use and it works well with arduino and raspberry pi.

Use this split core current sensor to build your own energy monitor, reducing your power usage, or use it build an over-current protection device for an AC load.

Input Current: 0~100A AC; Length of Leading Wire: 1m; Two Form of Output: current output or voltage output (burden resistor needed to add); Cable Jack: 3.5mm (like a headphone jack).

Suitable for lighting equipment, AC motors, air compressors, monitoring, current measurement and over-current protection

There are many low cost ultrasonic sensor available in India. The problem with those sensors are that they are not suitable in industrial environment where there is lot of dust and can also be damaged due to water. This is where JSN-SR04T ultrasonic distance sensor comes into picture. This sensor is not for just using in the LAB for your project it is perfect for practical applications in commercial as well as Industrial projects.

This Waterproof Ultrasonic Distance Sensor is an industrial grade sensor to measure distance. Interfacing with it is same as other cheap ultrasonic sensor, but it offers better performance and can be used in harsher environments and is waterproof too! It can be easily interfaced with Arduino and Sample codes and projects are available.

The sensor comes with a 2.5 m long cable that connects to a breakout board which controls the sensor and does all the processing of the signal. Note that only the sensor and the cable itself are waterproof, if you get water onto the breakout board, the sensor might stop working. The module is capable of providing information of the objects between the distance range of 250 mm to 4500 mm.

An ultrasonic distance sensor works by sending out ultrasound waves. These ultrasound waves get reflected back by an object and the ultrasonic sensor detects them. By timing how much time passed between sending and receiving the sound waves, you can calculate the distance between the sensor and an object. The main speciality of this sensor, besides it being waterproof, is that this sensor uses only one ultrasonic transducer. This transducer serves as both the transmitter and the receiver of the ultrasound waves.

Chip: SIM800L

Voltage: 3.7-4.2 V

Support networks: Global four-band network

Module size: 2.5 cm x 2.3 cm

TTL serial port for serial port, you can connect directly to the microcontroller. No need for MAX232

Automatic start of the power module, connection network

Signal lights on board all the way. Blinks slowly when there is a signal, flashes quickly when there is no signal.

This is Small SIM800L GPRS GSM Module Micro SIM Card Core Board Quad-band TTL Serial Port with the antenna, in this module two antennas have been included.

SIM800L GSM/GPRS module is a miniature GSM modem, which can be integrated into a great number of IoT projects. You can use this module to accomplish almost anything a normal cell phone can; SMS text messages, make or receive phone calls, connecting to the internet through GPRS, TCP/IP, and more! To top it off, the module supports quad-band GSM/GPRS network, meaning it works pretty much anywhere in the world.

On board two power supply interface VCC5 5 V VCC4 interface 3.5 power supply. 4.5 V optional power supply of envelope that (default) and control to start

On board SMA (default) and IPXmini antenna interface SIM900A reserved interface reset?

The size of the module is 49 * 50, all the new and original device.

The computer can provide the power supply of the USB debugging module of the computer,

A large amount of data under the recommended current condition more than 1 A.

Dozens of waiting MA data can be configured to provide

Rest, rest of 10 ma of low power. Support 2, 3.4G mobile phone card.

Serial port circuit: compatible with 3.3 V single-chip microcomputer

Microcomputer with single chip TTL serial port support3.3 and 5 V.

The circuit SIM card to increase the SMF05C ESD chip Antenna circuit: guarantees a short and straight, to guarante

e the strength of the signal.

PCB screen printing brand: each interface, practical development twice,

The SIM900 / hardware is completely still in the design when the manual design

Two power supply interface: VCC5 5 V DC above 1A!

The power supply of the 5 V computer can be the first USB in the computer.

Largest DC long data circuit recommended 5V1A.

VCC4 3.5. 4.5 V Ibid power supply suitable for lithium battery

Control Pin all cables.

A TTL level, compatible with 3.3 V and 5 V.

The interface of two antennas, the straight head SMA predetermined, the connector for the IPXmini antenna.

A form of speech interface, the way it exchanges the microphone.

The control interface of each pin Description:

GND-GNDSIMR SIM900A RXD TTL level

It can not be directly connected to the 232 levelSIMT SIM900A TXD TTL level

Active lowVCC_MCU when the SIM900A module and 5V level TTL communication

This pin is connected to DC 5 V;

When the communication level of SIM900A and 3.3V TTL ...

This pin is connected to DC 3.3 V.

VCC5 ---- DC 5 V input?

VCC4 ------ DC3.5--4.5 input

Integrated resources: serial port circuit (with protection) Antenna interface circuit (SMA curve female port) SIM card circuit (Flip SIM slot) 4 * 3.5 fixture hole 4pcsSIM900A serial port terminal output

Getting an original TowerPro Servo Motor is not an economical option at all! And is also a very difficult task to recognize and buy an original TowerPro servo, Because there are many suppliers spread over different online shops who are selling fake servo motors under this Brand name.

The TowerPro MG995 High-Speed Digital Servo Motor rotates 90° in each direction making it 180° servo motor. It is a Digital Servo Motor that receives and processes PWM signal faster and better. It equips sophisticated internal circuitry that provides good torque, holding power, and faster updates in response to external forces. These TowerPro MG995 Sem-Metal Gear Servo Motors are high-speed servo motors with a mighty torque of 10 kg/cm.

The Raindrops Detection sensor module is used for rain detection. It is also for measuring rainfall intensity. Rain sensor can be used for all kinds of weather monitoring and translated into output signals and AO.

Raindrops Detection Sensor Module Rain Weather Module for Arduino, etc. Rain sensor can be used to monitor a variety of weather conditions and turned into several fixed output signal and Analog output.

It includes a printed circuit board (control board) that “collects” the raindrops. As raindrops are collected on the circuit board, they create paths of parallel resistance that are measured via the op-amp. The lower the resistance (or the more water), the lower the voltage output. Conversely, the less water, the greater the output voltage on the analog pin. A completely dry board, for example, will cause the module to output 5V.

The module includes a rain board and a control board that is separate for more convenience. It has a power indicator LED and an adjustable sensitivity through a potentiometer. The module is based on the LM393 op-amp.

This versatile DC-DC boost power supply/converter module steps up any input voltage from 10V to 32V to any output voltage from 12V to 35V at up to 150W output power and 6A current.

This 150W DC-DC Boost Converter 10-32V to 12-35V 6A Step-Up Adjustable Power Supply is well into the heavy-duty end of the spectrum @ 150W; as you can tell by the huge toroidal inductor and dual heatsinks.

It is especially useful for automotive 12V applications, where standard 12V battery power can be boosted to 19V for use as a laptop computer power supply, or to 18V or 24V for other applications requiring higher voltages.

Please note there is no reverse polarity protection. A series diode is recommended. For high loads this might not be an option; so be cautious of the input polarity or you might fry the module!

The Lilypad Audriono ATMega328P 16M HW-1 Board is a compatible Arduino-program micro-controller is designe to be easily integrat into e-textiles and wearable projects. It offers the same functionality you find in other Arduino boards, in a lightweight, round package design to minimize snagging and profile. With wide tabs that can be sewn down and connect with conductive thread.

The LilyPad consists of an ATmega328 compatible with the Arduino bootloader and a minimum number of external components to keep it as small (and as simple) as possible.

This board will run from 2V to 5V and offers large pin-out holes that make it easy to sew and connect. Each of these pins, with the exception of (+) and (-), can control an attached input or output device (like a light, motor, or switch).

A smart little servo tester than can be used to test servo motor, ESC and also to determine motor direction. Tests up to 3 servos at the same time.

The device also can be used as a signal generator for electric speed controller (ESC), for testing your motor system without using a transmitter and receiver.

It has 3 Operation Modes:

Automatic mode:- Operates servos to their endpoint and back “window wiper” mode: Make the servo swing like window wipers in the biggest angle

Manual mode:- Turn the knob with different speed, check the reaction time

Neutral / Center mode:- Centers servos to their neutral position Ideal for when setting servos up in a model

5A range of single-phase ac current sensor module can measure AC currents less than 5A, the corresponding analog output 5A/5mA.

It has Onboard sampling resistor and precision microcurrent transformer do accurate sampling for the signal and appropriate compensation, and other functions. The module can measure within 5A current communication, corresponding to output analog quantity can be adjusted.

Features :

Onboard precision microcurrent transformer.

Onboard sampling resistor.

The module can measure AC currents less than 5A, the corresponding analog output 5A/5mA.

RC522 - RFID Reader / Writer 13.56MHz with Cards Kit includes a 13.56MHz RF reader cum writer module that uses an RC522 IC and two S50 RFID cards. The MF RC522 is a highly integrated transmission module for contact-less communication at 13.56 MHz. RC522 supports ISO 14443A/MIFARE mode.

RC522 - RFID Reader features an outstanding modulation and demodulation algorithm to serve effortless RF communication at 13.56 MHz. The S50 RFID Cards will ease up the process helping you to learn and add the 13.56 MHz RF transition to your project.

The module uses SPI to communicate with microcontrollers. The open-hardware community already has a lot of projects exploiting the RC522 – RFID Communication, using Arduino.

This project uses bright infrared (IR) LED and a phototransistor to detect the pulse of the finger, a red LED flashes with each pulse.

Pulse monitor works as follows: The LED is the light side of the finger, and phototransistor on the other side of the finger, phototransistor used to obtain the flux emitted, when the blood pressure pulse by the finger when the resistance of the phototransistor will be slight changed.

We chose a very high resistance resistor R1, because most of the light through the finger is absorbed,it is desirable phototransistor sensitive enough.Resistance can be selected by experiment to get the best results.

The most important is to keep the shield stray light into the phototransistor. For home lighting that is particularly important because the lights at home mostly based 50HZ or 60HZ fluctuate, so faint heartbeat will add considerable noise.

The Tilt Sensor Vibration Alarm Vibration Switch Module for Arduino come with the basic components for operation. Supplying power and it is good to be used. Attach it to object and it will detect whether the object is tilt. Simple usage as it is the digital output, so you will know the object is tilt or not by reading the output.

It uses SW-460D or SW-520D tilt sensor. The Tilt Sensor is the ball rolling type, NOT Mercury type.

Comes with an M3 mounting hole for ease of attaching it to an object. On board, it provides a tilt switch, high sensitivity and commonly being used for tilt detection. The module comes with power LED and status LED for the visual indicator.

The module will output logic LOW when the module is not tilted until the threshold angle; it will output logic HIGH when it is tilted over the threshold angle. We have tested, the tilt angle is quite big, from 45 degrees to 130 degrees. However, it depends on the angular velocity too. It can be used as a vibration sensor too.

It can be interfaced with any microcontroller with digital input such as 8051, PIC, SK40C, SK28A, SKds40A,

Vibration sensor module alarm Motion sensor module vibration switch SW-420 module based on the vibration sensor SW-420 and Comparator LM393 to detect if there is any vibration that beyond the threshold. The threshold can adjust using an onboard potentiometer. When this no vibration, this module output logic LOW the signal indicates LED light, and vice versa.

If the module does not vibrate, the vibration switch was on the close state, the output of low output, the green indicator light. The product vibrates, vibration switches momentary disconnect, the output is driven high, the green light does not shine.

The output can connect to the microcontroller, which to detect high and low level; so as to detect whether the environment exists vibration, play a role in the alarm

Accurate flow measurement is an essential step both in the terms of qualitative and economic points of view. Flow meters have proven excellent devices for measuring water flow, and now it is very easy to build a water management system using the renowned water flow sensor YF-S201. For example you can make a robotic cocktail dispensing machine, and can use this sensors to accurately measure components like Soda, Water, etc.

YF-S201 1/2 inch Water Flow Sensor sits in line with the water line and contains a pinwheel sensor to measure how much water has moved through it. There is an integrated magnetic Hall-Effect sensor that outputs an electrical pulse with every revolution. YF-S201 1/2 inch water flow sensor has only three wires and it can be easily interfaced between any microcontroller and Arduino board. It requires only +5V Vcc and gives pulse output, the sensor needs to be tightly fitted between water pipeline.

Color Sensor, based on TCS3200, is a complete color detector capable of detecting static color. The output of the sensor is a square wave with frequency directly proportional to incident light intensity. It also supports fill light by on board LEDs. It includes a TAOS TCS3200 RGB sensor chip and 4 white LEDs. The TCS3200 can detect and measure a nearly limitless range of visible colors. Applications include test strip reading, sorting by color, ambient light sensing and calibration, and color matching, to name just a few.

The TCS3200 Color Sensor board makes it very easy to sense and record the light intensity of the general red, green, and blue spectrums of visible light while rejecting IR from light sources. You can then use these color sensor readings for the purposes of logging and finding patterns, or creatively calculate and make control decisions in your electronic projects.

The TCS3200 GBB Color Sensor For Arduino has an array of photo detectors, each with either a red, green, or blue filter, or no filter (clear). The filters of each color are distributed evenly throughout the array to eliminate location bias among the colors. Internal to the device is an oscillator which produces a square-wave output whose frequency is proportional to the intensity of the chosen color.

A4988 Module is a Smaller and Cheapest breakout board for Allegro's A4988 Stepper Motor Driver. It has many advantages including adjustable current limiting, over temperature and over current protection. It has five different stepping resolution and has a wide operating voltage range from 8 volt to 35 volts and can deliver current upto 1 Amp per phase.

The A4988 is a complete micro-stepping motor driver with built-in translator for easy operation. It is designed to operate bipolar stepper motors in full-, half-, quarter-, eighth-, and sixteenth-step modes, with an output drive capacity of up to 35 V and ±2 A. The A4988 Motor Driver includes a fixed off-time current regulator which has the ability to operate in Slow or Mixed decay modes.

The translator is the key to the easy implementation of the A4988. Simply inputting one pulse on the STEP input drives the motor one micro-step. There are no phase sequence tables, high frequency control lines,or complex interface sto program. The A4988 interface is an ideal fit for applications where a complex microprocessor is unavailable or is overburdened. During stepping operation, the chopping control in the A4988 automatically selects the current decay mode, Slow or Mixed.

In Mixed decay mode, the device is set initially to a fast decay for a proportion of the fixed off-time, then to a slow decay for the remainder of the off-time. Mixed decay current control results in reduced audible motor noise, increased step accuracy, and reduced power dissipation.

This water level sensor module has a series of parallel exposed traces to measure droplets/water volume in order to determine the water level. Very Easy to monitor water level as the output to analog signal is directly proportional to the water level. This output analog values can be directly read via ADC and can also be connected directly Arduino's analog input pins.

A4988 Module is a Smaller and Cheapest breakout board for Allegro's A4988 Stepper Motor Driver. It has many advantages including adjustable current limiting, over temperature and over current protection. It has five different stepping resolution and has a wide operating voltage range from 8 volt to 35 volts and can deliver current upto 1 Amp per phase.

The A4988 is a complete micro-stepping motor driver with built-in translator for easy operation. It is designed to operate bipolar stepper motors in full-, half-, quarter-, eighth-, and sixteenth-step modes, with an output drive capacity of up to 35 V and ±2 A. The A4988 Motor Driver includes a fixed off-time current regulator which has the ability to operate in Slow or Mixed decay modes.

The translator is the key to the easy implementation of the A4988. Simply inputting one pulse on the STEP input drives the motor one micro-step. There are no phase sequence tables, high frequency control lines,or complex interface sto program. The A4988 interface is an ideal fit for applications where a complex microprocessor is unavailable or is overburdened. During stepping operation, the chopping control in the A4988 automatically selects the current decay mode, Slow or Mixed.

In Mixed decay mode, the device is set initially to a fast decay for a proportion of the fixed off-time, then to a slow decay for the remainder of the off-time. Mixed decay current control results in reduced audible motor noise, increased step accuracy, and reduced power dissipation.

ADXL345 is a Breakout board for the Analog Device's ADXL345 triple axis accelerometer. The module is populated with MOSFET based Voltage level conversion circuitry to enable you to interface different type of microcontrollers (3V3 & 5V). Apart from the above all, necessary components like decoupling capacitors ,filter capacitors ,pull up resistors and LED are also populated on board.

It is ideal for motion and acceleration sensing applications.It is a low-power, 3-axis MEMS accelerometer modules with both I2C and SPI interfaces.

The ADXL345 features 4 sensitivity ranges from +/- 2G to +/- 16G. And it supports output data rates ranging from 10Hz to 3200Hz such as the Arduino.

This is Speed Measuring Sensor Groove Coupler Module For Arduino. The DO output interface can be directly connected to a micro-controller IO port if there is a block detection sensor, such as the speed of the motor encoder can detect.

DO modules can be connected to the relay, limit switch, and other functions, it can also with the active buzzer module, compose alarm. Widely used in motor speed detection, pulse count, the position limit, etc.

Wiring Specification of Speed Measuring Sensor Groove Coupler Module For Arduino:- VCC: The positive 3.3-5 v power supply. GND: Connect power negative. DO: TTL switch signal output. AO: This is analog output.

Description:

XY-P15W High Power Digital Dual Channel Stereo Bluetooth 5.0 Power Amplifier Module. Dual channels audio signal at the output. It can directly connect to loudspeaker as it has inbuilt Amplifier Module.It is ideal for DIY wireless Bluetooth speakers and transponders.

Overview:

Bluetooth Power Amplifier Module:

Output: Daul Channel

Voltage: DC 8V-24V

Communication Range: 15m

Features:

Wide working voltage range

Applicable for multiple type speakers

Knob adjustment function

Support reverse connection protection

Support short circuit protection

Self-recovery overheat protection

DC 5V-24V 5A PIR Motion Activated Sensor Switch with DC Coupler Cable for LED Strip Light

Specifications:

Operating Voltage: DC5V ~ 24V

Load Current: 5A

Delay Time: 15S

Detecting Range: 120°

Detecting Distance: 5-7m

Trigger Way: Continuous triggering

Surface Mount Switches offeredcome with support of side flange mount with/without self adhesive support and 18" long wire leads options. Finding extensive use in security alarm panels, these mount switches have minimum operate gap of 3/4" (19.0mm) with optional mounting spacer available on request. These are available in specifications including contact rating of 10W/VA, maximum switching current of 0.5 Amp, life expectancy of 10x 10 6 operations, shock resistance of 30G for 11msec, use of ALINCO/rare Earth magnets (unless otherwise specified), plastic material used of ABS plastic (unless otherwise specified).

SIM7600 variant SIM7600EI is a complete multi-band LTE-FDD/LTE-TDD/HSPA+/UMTS/EDGE/GPRS/GSM module solution in LCCtype which supports LTE CAT1up to 10Mbps for downlink and 5Mbps for uplink data transfer. Designed in the compact and unified form factor, SIM7600E is compatible with SIMCom HSPA+ SIM5360 module/LTE CAT3 SIM7100 and LTE CAT4 SIM7600X-H module, which allows the customer to design their application once for different technology and benefit from great development time-saving

ESP32 Development board is based on the ESP WROOM32 WIFI + BLE Module.It's a low-footprint, minimal system development board powered by the latest ESP-WROOM-32 module and can be easily inserted into a solderless breadboard.

It contains the entire basic support circuitry for the ESP-WROOM-32, including the USB-UART bridge, reset- and boot-mode buttons, LDO regulator and a micro-USB connector. Every important GPIO is available to the developer.