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by IIAOPSW
1571 days ago
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I've been tempted to make a large one of these out of some plastic panels lying around that were once part of an Ikea cube organizer thing. The cube shelf is actually a bunch of modular plastic panels and modular connectors, so there its just a matter of sticking them together tightly and then inserting an axle somehow. https://i5.walmartimages.com/asr/e528a8d0-6191-4472-adf5-935... BTW the arduino is overkill. All you need is a few tracks along the wheel and some electrical contacts. Encode the position directly in the track connectivity. Select position by just sending the binary for the desired letter down the wires. When it reaches the correct letter, the powered contacts get cut off and the motor stops turning. |
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... or use a $4 MCU. Even get Wifi capabilities for "free".