In this video I’ll be showing you how to build your own two digit mechanical seven segment display using an Arduino Mega and micro servos. You’ll need an Arduino Mega as the Uno doesn’t have enough PWM pins to drive even a single digit mechanical seven segment display, it only has 6 PWM pins. The Arduino Mega has 15 PWM pins, enough to drive two digits. The digit segments are all 3D printed using bright green PLA.
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