[volts] is using an ATtiny13 to control six seven segment displays. Each display is mounted on a hand-etched board, with a shift register and a handful of resistors soldered to the back.

Hardware-wise, it’s a small PCB containing an ATtiny84, two seven-segment LED displays, ... 9 thoughts on “ Hunt The Lunpus Is An ATtiny-Based Minimalist Game Console ” Orzel says: ...