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ESP8266 NodeMCU Relay Module - Control AC Appliances (Web Server

Using ESP8266 and MIT App Inventor to control a Relay | IoT

ESP8266/32 (Home Assistant Switch) connected to PCF8574 controlling 8

Esp8266 Relay Module Schematic

Electronic – Feedback schematic/pcb 16 channel relay wifi module

Esp8266 Relay Module Schematic

Esp8266 Relay Schematic