Use a temperature sensor to measure your skin temperature, and register the output with three LEDs. Even though the Arduino is a digital tool, it can interpret signals from an analog input, like the ...

Connect Led to Pin 13 and switch to pin 2 and connected as described in the circuit when you slide the switch it make the led light & send to serial monitor that " pressed " && "led on " which is work ...

We’d seen it done with buttons, switches, gestures, capacitive touch, and IR remote, but never like this. [electron_plumber] made an LED that can be blown out like a candle, and amazingly it … ...