jack_h_mullen2222

Sweet. So it seems like that'll be the perfect gpio expander for my project yeah?

I'm curious where you're searching. Are you searching for just the chip with no pcb? I'm a noob but I just went on DigiKey and found one made by adafruit mounted on a pcb with no-solder connectors for i2c wired connections. I don't see a C or a...

Not sure where you're seeing that, but it seems like there are multiple mfgs for PCF8575. The Adafruit I'm looking at is 2.5v-5.5v power supply and claims it can accept 1.8v gpio input. For the sake of discussion though. Because there is...

@TomChiron Thanks for the tips. Im thinking I can skip the multiplexer if I use teensy 4.1 which has 18 analog pins. Then a 15x4 key matrix takes 19 pins. For the rotary encoders Im thinking of using 5 PCF8575 GPIO expanders with this code...

Hey, I know this was a long time ago. But I'm embarking on a similar project, a midi ma3 fader wing. I'm hoping to do 3 banks of 5 non-motorized executor stacks in one box (to replicate compact xt / ma3 light) Just curious if you ended up...