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HATs and other add-ons • Re: Multiple potentiometers

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Analog pots are a PITA.

There are some devices out there like this one: https://shop.m5stack.com/products/8-ang ... entiometer and this one: https://www.adafruit.com/product/5752 that incorporate multiple rotary encoders on the same board and bring them all in on one cable via I2C or some other protocol. Not expensive, and much better than analog pots, which are scratchy and noisy.

Watch out for voltage levels, although with I2C you don't have to worry about it since the I2C logic uses pull up resistors (which the Pi supplies by default IIRC) and sinks the signal using an open collector.
Thanks for your recommendations.

The 8-Angle Unit with Potentiometer looks great, though I'm not very experienced with I2C. Do I connect that through GPIO or is there a port on the Pi for it? Thanks

Statistics: Posted by MatthewRf — Mon May 06, 2024 9:15 pm



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