Mar 04,2022
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  • Great project. I can see many possibilities for this. Hypothetically, could a Raspberry pi using only a few of its GPIO pins be used to control many outputs freeing up other GPIO pins on the Raspberry pi for other tasks?

    Ken Yap 2022-03-19 12:24:48Reply

    Sure, not just the RPi but any microcontroller. The trade-off is of course speed. It takes time to update the outputs from a serial stream, so you can change the output only so fast. But for many applications this is not an issue. I think up to hundreds of times a second is not a problem. Enjoy, and if you do any interesting projects with it, write it up on Hackaday.io.

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