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 ...

When the button is pressed the Arduino board will put pin 2 in HIGH state ... You can use this code example to introduce a delay in your circuit. The variable “stayON” is used to delay() the program ...

the idea is that he can still use the Arduino to reprogram the NVRAM chip when he wants to play around with the sound. We’ve covered some pretty fancy circuit bent instruments here in the past ...

The Arduino is a circuit board that you'll program to perform ... you can put the code onto your device with a single button press. You'll get as much out of this hobby as you put in.