ESP8266 Relay Module - Control AC Appliances (Web Server) | tecno4 | Scoop.it
Using a relay with the ESP8266 is a great way to control AC household appliances remotely. This tutorial explains how to control a relay module with the ESP8266. We’ll take a look at how a relay module works, how to connect the relay to the ESP8266 and build a web server to control a relay remotely (or as many relays as you want).