Remote Controlled Dual Relays using FM Radio Modules

Remote control of pumps, heaters, lights and other appliances is often a requirement in Home Automation, Building Control or Automation of Industrial Control processes. Traditional radio modules can often disappoint by having poor range or being prone to interference. FM Radio Modules when compared to much cheaper AM modules gives superior performance in both these areas. This post is about a remote module that has two independent relays for remote switching ON and OFF of appliances.

Using the Dual Analogue Radio Transmitter (DART) and Universal Radio Receiver (URR) for Home Automation

When putting together a Home Automation System together it is often necessary to gather analogue data. This could be from temperature / humidity sensors or to measure battery voltage. Often these are remote to the computing module which could be a Raspberry Pi, and Arduino or a PC - for example when gathering data from a weather station on the roof of a building.