Library for using the FC-16 display module (based on MAX72xx) with ESP8266 (NodeMCU) and Arduino IDE. There is a very nice display module with MAX7219 and four 8x8 matrix displays. And then there is a ...

So you want to control some mains electrical (or lower voltage) item using your phone, perhaps? This single ESP8266 plug-in controls a relay that is built in to the module. An Android app (.apk) ...

An automatic toll gate system using Arduino revolutionises traditional toll collection by eliminating manual intervention.