Complete Writeup is here

Command Code on Github here

What it does

A pen dragging stepper-motor controlled robot that can be controlled via a mobile phone through Bluetooth.

How I built it

Built with Arduino, a solder iron, motor shield, 2 stepper motors, a laser cutter, a 3-D printer and the AccelStepper Arduino Library to control multiple steppers together. Iteration One was built with imprecise DC motors.

Challenges I ran into

The AccelStepper Library is challenging to work with and stepper wiring with a motor shield requires wire pairwise resistance checking.

What I learned

A lot about battery consumption, bluetooth and bluetooth configuration, and actuation with different motor types.

Built With

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