A low power RF data link between two ATmega328's based Arduino units , Sensor data is transferred Via a 433 Mhz transmitter. and then displayed on an OLED CH1115.

Transmitter and Receiver Software for Arduino Based Radio Frequency (RF) Communication System.

A set of simple wrappers for common Arduino sensors

Basic RF communication link between Arduino boards using cost effective wireless modules (434 MHz transmitter and receiver)