The project includes 3D-printed parts, wooden supports, and a repurposed mini conveyor belt. The working combines stepper motors, IR sensors, and a 16x2 LCD. A NEMA17 stepper motor is used to rotate ...

The hardware comprises an Arduino Nano or compatible, a standard 16x2 LCD display (used in 4-bit mode) with backlight and contrast adjustment, three pushbuttons (DOWN/SET/UP, each with a 470 nF ...

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