You can read the state of a button using Arduino and a few lines of code. The actual state is shown in the Serial Monitor window as 0 or 1, 0 meaning the button is not pressed and 1 that the button is ...

int lastbuttonState = LOW; // Way to store previous button state from loop to loop int ledState = LOW; // Way to store previous LED state from loop to loop long lastDebounceTime = 0; // The last time ...

A push button is connected to the ESP32 microcontroller. When its state changes, it will trigger an MQTT publish which will toggle the light controlled by a Shelly plus 1 relay. Keep in mind that you ...

The electronic circuit can be assembled by sticking the module snappy with a magnet "Little Bits (Little Bitz)", The microcomputer board"ArduinoModule has appeared. We did not need any breadboards, ...