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.
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.
Statistics: Posted by wsanders — Tue Apr 30, 2024 9:00 pm