Friday 27 November 2015

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.