If you are looking into wireless communication between two Arduino modules, this project might be helpful. It uses low costs RF transmitter and receiver from Electronics-DIY.com to establish radio link between two Arduino boards up to 500 ft. Data can be transferred serially at the maximum rate of 2400 bps. The schematic shows how receiver and transmitter is hooked up to two different Arduino boards. When wiring the receiver / transmitter you only need to give them power / ground and then a pin for the TX (serial transmit) or RX (serial receive) pin. I also wired a button to the Arduino doing the transmitting, and used the LED on pin 13 that is built into my Arduino boards on the receiver so I could test this setup. The test app just flashes LED on the receiving board when a button is pressed on the transmitting board.

     Using RF 433MHz Transmitter / Receiver Modules With Arduino
     Two Wire I2C Arduino LCD Display
     Arduino Battery Saver - Watchdog and Sleep Functions
     Arduino RF link using 433MHz Transmitter / Receiver modules
     Arduino Sinewave Generator
     Arduino Prototype
     Arduino AVR In System Programmer
     Arduino Breadboard Clone

Circuit-Zone.com © 2007-2024. All Rights Reserved.