Plug the RFID module into the breadboard with enough space around it. Connect the VCC pin to the Arduino's 3.3V (not 5V), and ...

You will need the Arduino Board, a 560Ω resistor, and LED and the code example below. We set the pinButton variable as integer 8 and we connect the button at pin 8 on the Board. Then the LED is ...

You can read the state of a button using Arduino and a few lines of code ... with the value obtained using the digitalRead() function that reads the state of pin 8. Then it displays its state in the ...