This text-enabled espresso machine uses the Zipwhip app to receive a text message for an order of espresso. An A4988 stepper motor driver carrier and servo are then used to rotate the cup up to the nozzles where the espresso is dispensed.
This blog post is a very detailed writeup of some
A4988 stepper motor driver heatsinking experiments.
The LightRobot is a 3pi Robot that has been modified with RGB LEDs, an RN-41 Bluetooth module, and a sonar range finder that is controlled with...
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