Arduino UNO The Uno ... It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header and a ...

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. /* * ...