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.

Using an Arduino Mega, DS3231 Real Time Clock Module, Eight stepper motors 28BYJ-48 with ULN2003 Driver, 82 cm Wooden strip 19x19mm, Steel Wire 1m, 46 Washer head screw 4.2 x 14 mm, 16 Button head ...

Posted in clock hacks Tagged arduino, digital, electromechanical, magnet, PCA9685, rtc, servo, seven segment ← Quality Control, Done Anywhere New BBC Micro:bit Adds Microphone And Speaker → ...