While the ESP32 is clearly a superior piece of hardware, we think you’ll agree that the ESP8266 is just too useful not to have a dozen or so kicking around the parts bin at any given time. Cheap, easy ...

I have 2 devices use esp8266 (ESP-12F module). Both of them running same firmware and connect to same wi-fi AP. The application is simple touch switch: button, relay, connect wifi, connect mqtt and ...