All he has to do is plug a switch in, and the servo-driven finger slowly presses the slider down until the contacts ... but then you dont need an arduino ;-) or even a 555 :lol: Report comment. Reply.

He connected the Arduino Mega’s LED output to a pair of LittleBits which then switch a servo between two positions. A bare servo wouldn’t be much fun, so [Outaspaceman] connected a tentacle ...