Wireless Switch with NodeMCU (ESP8266) and a Relay | by Alejandro González | Trabe | Medium
ESP8266 WiFi LED dimmer Part 6 of X: ESP8266 Domoticz Wall Switch - Intermittent Technology
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Retrofit House Lights with WiFi - Keep existing switches Controlled by Android using ESP8266 and pfodApp<br><b><i>No Android programming required</i></b>
Smart altenative switch with ESP8266, ioBroker and MQTT - Hackster.io
DIY HUE Light Switch Using an ESP8266 · Jacob Eaton
Tasmota Smart Light Switch Flush-Mounted Nous L6T - esp8266 Smart Home Switch with Timer Switch, WiFi
MQTT Relay with NodeMCU and using the physical light switch - Configuration - Home Assistant Community