receiver

In this article we look at a pair of modules that can be used for communication between 2 Arduino’s. These are a 433Mhz transmitter and receiver module The kit includes one pair of transmitter and receiver modules and one pair …

This is a simple example for an RF transmitter and reciever, these come in a couple of flavours the pair I had  operate at 315Mhz. These modules are readily available and look like this Specs RF  Receiver 1. Product Model: MX-05V 2. …