In this Instructables, we will use a Particle Photon (Arduino compatible) microcontroller coupled with a 315MHz RF Transmitter to send commands to a Harbor Breeze ceiling fan. We will then learn how to use an Amazon Echo and Alexa to activate our fan using voice commands. The ultimate goal is to be able to turn on the fan by saying: "Alexa, trigger fan on".
Reverse Engineer RF Remote Controller for IoT! by veggiebenz
RF 315/433 MHz Transmitter-receiver Module and Arduino by Mohannad Rawashdeh
Home Automation using Particle and Amazon Echo by Krishnaraj Varma