Ocean College and School Students Science Projects materials

RFM73 is a low-power, high-speed FSK/GFSK transceiver module specifically operating in the world wide ISM frequency band at 2400 - 2483.5 MHz The module features low cost, small size, high stability and good consistency. The maximum air data rate can be up to 2Mbps. It can be widely applied in various wireless connections in daily life or activities. It is compliant with the specifications regulated and required by FCC and ETSI.

Features

• 4-pin SPI interface with maximum 8 MHz clock rate
• Support 1 and 2 Mbps air data rate
• FSK/GFSK modulation
• Programmable output power: -35 ~ +5 dBm
• Rx sensitivity -88dBm at the 1M data rate
• Programmable frequency range 2400-2483.5MHz, 83 channels selectable
• Ultra low power consumption
• Data buffering, burst data transmission, auto re-transmission and auto acknowledge
• 6 data pipes for 1:6 star networks
• Low-price MCU enables high-performance RF system
• Open area distance: 70-80m

Features

• Low current consumption. (RX:13.3mA,TX:21.2mA @0dBm output power)
• Easy for application.
• Efficient SPI interface
• Operating temperature range: -40 85
• Operating voltage:1.8~ 3.6 Volts.
• Available frequency at : 2.4-2.483 GHz
• Programmable output power (up to 1dBm).
• Hi sensitivity (-101dBm @10kbps)
• Small footprint. in a 17X17mm,8pinout.

Features

• Supports multiple baud rates (4800/9600/19200/38400).
• Works on ism band (2. 4 ghz) which is reserved internationally so no need to apply for license.
• Supports multiple frequencies within the same band rate thus avoiding data collision.
• No complex wireless connection software or intimate knowledge of rf is required to connect your serial devices.
• Designed to be as easy to use as cables.
• No external antenna required.
• Plug and play device.
• Works on 5-9v DC supply.
• Standard uart interface.

Specifications:

• Baud Rate: 9600. Serial UART Mode
• Packet Length: Variable (0 to 40) or Fixed (1 packet).
• 60+ meters range Line of Sight / 30 meters range indoors
• Multiple channel selection enabling up to 255 different pairs to work in the same area
• Modes of operation: Configured mode and Run mode.
• On board jumper Setting for Configured/Run Mode and Packet/Byte Mode.
• Direct Replacement for wired Serial Cable for and serial communication
• Working with CC2500 Wireless Transceiver module

Details:

Description:
1) Baud Rate: 9600 to 38400. Serial UART Mode
2) Packet Length: Variable  or Fixed .
3) 30+ meters range Line of Sight / 10 meters range indoors
4)Multiple channel selection enabling upto 255 different pairs to work in the same area
5)Modes of operation: Config mode and Run mode.
6) Onboard jumper Setting for Config/Run Mode and Packet/Byte Mode.
7) Direct Replacement for wired Serial Cable for and serial communication
8) Working with CC2500 Wireless Transceiver module

HM-T series FSK receiver module is specially designed for replacing those applications that used ASK technology module already. It used together with HM-R series FSK transmission module. Due to the benefits from FSK technology, the module is robust to interference, and longer working distance can be achieved.

Features:

• Highly integrated, small size
• High sensitivity, low power consumption
• Fsk technology, suitable for replacing ask modules
• Less interfrence, longer working distance
• Can be used to replace ask module W/O the need of software change
• No tuning required during production

HM-R series FSK receiver module is specially designed for replacing those applications that used ASK technology module already. It used together with HM-T series FSK transmission module. Due to the benefits from FSK technology, the module is robust to interference, and longer working distance can be achieved.

Features:

• Highly integrated, small size
• High sensitivity, low power consumption
• Fsk technology, suitable for replacing ask modules
• Less interfrence, longer working distance
• Can be used to replace ask module W/O the need of software change
• No tuning required during production

Features:

Features:

• Frequency Range: 433/868/915MHz ISM bands
• Sensitivity = –121 dBm
• Output power range:+20 dBm Max
• Low Power Consumption
• Data Rate = 0.123 to 256 kbps
• FSK, GFSK, and OOK modulation
• Power Supply = 1.8 to 3.6 V
• Ultra low power shutdown mode
• Digital RSSI
• Wake-up timer
• Auto-frequency calibration (AFC)
• Power-on-reset (POR)
• Antenna diversity and TR switch control
• Configurable packet handler
• Preamble detector
• TX and RX 64 byte FIFOs
• Low battery detector
• Temperature sensor and 8-bit ADC
• –40 to +85 °C temperature range
• Integrated voltage regulators
• Frequency hopping capability
• On-chip crystal tuning
• 14-PIN DIP & 16-PIN SMD package
• Low cost

Features:

• low costing, high performance and price ratio
• tuning free during production
• FSK reception
• PLL and zero IF technology
• fast PLL lock time
• high resolution PLL with 2.5KHz step
• high data rate (up to 115.2 kbps with internal demodulator)
• differential antenna input
• automatic antenna tuning
• programmable receiver bandwidth (67 - 400 kHz)
• analog and digital signal strength indicater(ARSSI/DRSSI)
• AFC
• DQD
• internal demodulator
• SPI interface
• clock and reset signal output for external MCU use
• 16 bits FIFO
• low power mode (<0.5mA averaged current consumption)
• 10MHz crystal for PLL timing
• wakeup timer
• low battery detection
• programmable capacitor bank
• 2.2V - 5.4V power supply
• low power consumption
• stand by current less than 0.3µA

Features:

• low costing, high performance and price ratio
• tuning free during production
• FSK or ASK reception
• PLL employed
• fast PLL lock time
• high resolution PLL with 2.5KHz step
• programable frequcnecy deviation(rom 30kHz to 240kHz,step 30kHz)
• programable output power
• high data rate (up to 115.2 kbps with FSK modulation with ASK modulation highest data rate is 256 kbps)
• differential antenna output
• automatic antenna tuning
• SPI interface
• clock and reset signal output for external MCU use
• 10MHz crystal for PLL referencement
• programmable crastal load capacitor bank
• wakeup timer
• low battery detection
• 2.2V - 5.4V power supply
• low power consumption
• stand by current less than 0.3µA

This module is a low-power wireless communication solution that is ideal for Smart Grid, home automation, smart lighting, industrial sensor data acquisition and remote control applications. This module integrates SPIRIT1, an extremely low-power sub-GHz transceiver, an MCU for wireless network control and hardware interface, a PCB antenna and matching circuitry. Right out- of-the-box this module supports simple point-to-multipoint serial communication over-the-air. It has a small 24mm x 36mm form-factor for easy integration. This module allows OEMs to easily add wireless sub-GHz capability to their electronic devices. A simple cable replacement model allows the module to be used similarly to a standard serial interface. Full CE compliance and FCC compliance reduces time to market.

Features:

RF center frequency of 867MHz to 869MHz (can be modified for other bands) Small 24mm x 36mmx3mm form factor. Can fit into almost anything. Standard UART interface with hardware flow-control (Clear-to-Send CTS) Easy to integrate into current devices that support RS-485, RS-232, RS-422 or TTL serial data Compatible to 5V power-supply and interface Integrated efficient PCB antenna Robust network protocol for point-to-point and data hopping communication Listen-before-talk and random back-off algorithm 16bit node address and 16bit network address Acknowledgement based point-to-point communication with data hopping over repeaters Settable channels, baud-rate, air-data rate and RF transmit power Configurable parameters, signal-strength limit, ack timeout, network and point address