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Problem with raspberry pi 3 B GPIO there are not working , BrachioGraph project

samiboutgoulla

hello everyone, I created a BRACHIOGRAPH with a raspberry pi 3 and a three servo here is the documentation https://www.brachiograph.art/ and also here is the github link of the project https://github.com/evildmp /BrachioGraph.git , I noticed that it draws me every time a half circle, so I tried to test the GPIOs of the raspberry pi with the servos I distinguished that the GPIOs do not work except GPIO 14 it's the only one that works can you help me  

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  • Looking at your points accumulation it appears you are new to the E14 Community. Welcome. There are a number of professionals that hang out here who can help you troubleshoot your problem depending on your investment.

    Think of getting insight into a problem like fishing. Bait on the hook is a necessity. Good bait makes for good fishing. You investment in the question (i.e. bait) improves the chance someone will come along for a nibble. Like fishing it may take some time for a bite.

    Your bait at the moment is pretty thin. I the reader have to do a lot of work to understand the problem before providing some sound advice.

    What is the meaning "GPIO's do not work except GPIO14"?

    Can you confirm the Pi GPIO's were working before the project?

    How have you tested the GPIO's?

    The photo's evidence reduce my confidence you have reliable circuits. Is it possible to construct one servo circuit, omitting all the other cruft and use that circuit as a test example?

    Details are the extra folds of worm pushed onto the hook that improve your chances of someone taking a bite.

  • in reply to colporteur

    hello, thank you for your suggestions, I will try to try another time to make the diagram to explain everything again and send a new message

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