Windows 98SE/2000/XP/Vista/Window7/Mac OS 9/Mac OS X/Linux 2.40
ESPea Relay Shield ESP8266 WiFi Module Development board
This is the ESPea Relay Shield, an add-on board that allows your ESPea to control higher voltage and current loads through a relays. This shield provides great support of ESPea projects that require high power consumption or distribution. You can add maximum 4 stacks of Relay shields by a jumper.
You can cut orginal jumper for D1, wire other pin to relay.