Thank you for your quick reply @gavin67890 !
I am not sure if you overlooked that i need 2 of the potentiometers? So I guess I would use 26 and 36 for those and solder 2 grooves to the proto hat.
To get that additional switch I assume that I need some I2C I/O expander and a PaHUB.

Alternative: I just saw the PbHUB. Wouldn't that work for the angle units and also the switch (I don't know what is inside the switch but with an additional pull resistor and some analogRead threshold it could work?)

Hi there!
I would like to connect several sensors to the M5StickC and I am wondering if that is even possible with the few IO pins available. I am using Arduino framework.

Sensors:
1 x U153: 8-Encoder Unit (I2C)
2 x U005: Angle Unit / Potentiometer
1 x U145: Limit Switch (optional)

So this is a mixture of I2C, digital and analog inputs. Is it possible to cleverly combine some of the HUB modules and probably a proto HAT to get all these peripherals to work at the same time with the M5StickC? Or should I better look for a different board with more GPIOs? Initially I was thinking about getting a Pi Pico but I have two spare StickCs lying around.