Arduino-433MHz-RF-Communication

Communicating analog data over low-cost RF modules between Arduino microcontrollers

Project Description

Communication of analog data over RF between two Arduino microcontrollers. The analog data we use is from a light-dependent resistor being read by an Arduino Nano.

We used the popular low-cost 433MHz RF Transmitter & Receiver pair, there is no complex hardware encoding or decoding on these devices. A HIGH signal on the transmitter will produce a HIGH signal on the receiver. We use the Arduino VirtualWire library to encode our data as well as provide error-checking.

The analog light value is received by an Arduino Uno which prints the value onto an attached LCD Keypad Shield.

Setup

Install Arduino

Download and Install Arduino IDE

Set-up VirtualWire

1. Download VirtualWire Library
2. Import in Arduino IDE Sketch -> Include Library -> Add .Zip Library...

Set-up Arduino

1. Open transmitter.c or receiever.c in Arduino IDE
2. Select Board in Arduino IDE Tools -> Board: XXXXX
3. Select Sketch -> Upload

Hardware

Transmitter

• Arduino Nano
• FS1000A

Receiver

• Arduino Uno
• XY-MK-5V

Dependencies

• Python3.6
• VirtualWire Library