I’m not much of a hardware person and I’m trying to understand these reference documents to know if any of the GPIO pins on the microcontroller in the daisy field are unused by the field.
I’m working on a solenoid trigger system and would love to use the field for that, it’s got the perfect set of interface controls for the project I’m working on, but if I’m reading this correctly, I think all the GPIO pins are being used?
I’m comparing it to the reference for the daisy pod: I think the pins with labels like N$15 and N$17 are unused by the pod. Since I don’t see any labels like that on the field reference, I think that means there are none available.
I have a field and have been wondering this too but not done any experiments yet but…
It should be possible to get some kind of SPI or I2C chip that does GPIO and piggyback it off of the respective bus pins?