A version of the mechatronic ears made with a BBC Micro:bit.
When I was thinking what could kids make with the micro:bit, I remembered my #Mechatronic Ears project. The micro:bit has a built-in accelerometer, can easily control up to three servos (because that's how many pins are easy to access without an edge connector), and can be programmed in Python. So I decided to give it a try.
I started by collecting the materials: a hat, ears with hair clips (you can find them in any costume shop, or order from China), two 9-gram servos (the cheap SG90 would work just fine, but I didn't have any at hand, so I used some random beaten up servos left from my first robot experiments), a battery, some wires and a piece of steel wire.
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