By using these driver ICs, the complexity of wiring and control is significantly reduced. “I’ve built a digital clock made out of 144 seven-segment displays controlled by an Arduino Nano.

Posted in Misc Hacks Tagged 7 segment, 74hc165, arduino, AS3144, duodecimal, hall effect, hexadecimal, seven segment ← Garage Door Opener Ejection Seat ...

The control architecture is interesting because each quadrant is controlled by its own PIC microcontroller, which handles the continuous multiplexing and modulation of the 18 7-Segment displays.