Did you know that you can use Arduino to turn on an LED when you press a button? Well, it is true, you can do this! Leaving the joke aside, let me show how you can achieve this. You will need the ...

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 ...

Last time, we read the state of a push button using a pull-down circuit with a 10kΩ resistor. This time, we will use the "pull-up resistor" built into the Arduino. This is a convenient method that ...

Last time, we used Arduino's INPUT_PULLUP to read the state of a push button without using external resistors. However, with mechanical buttons, it can sometimes appear as if the button was pressed ...