Further, if you hold down the push button the light output will cycle between brightnesses. The whole system can be powered from any 12VDC power source, for instance from an automobile battery. /* * ...

There’s an Arduino coupled with an RTC module to keep the time, which is connected to the two standard hobby servos mounted in the front panel. A UV LED and simple push button round out the rest ...

[Lars] shows you how to get a perfect score on the first four levels of BIT.TRIP RUNNER by using an Arduino to time and send button presses. This is a pretty simple game that uses a couple of ...