[Ed] was tasked with adding push-button degaussing to an arcade ... decoupling cap to power the new deguassing circuit and connected the SSR to the Arduino as an open collector input.

PIC, AVR, and Arduino are ubiquitous in projects these ... Instead of going with a microcontroller he built the circuit around a 555 timer. What he really needed in this case is a flip-flop ...

It's a gadget that will instantly order you a pre-programmed Domino's pizza with the push of a button. PiePal is ... uses a combination of an Arduino circuit board and Raspberry Pi — a credit ...