UPS Pack V2 Python codes dont work, error OSError: [Errno 25] Inappropriate ioctl for device

[hthouse]

i cannot run any of the python codes , i am getting this error,
OSError: [Errno 25] Inappropriate ioctl for device

[CapCorrector]

Hi, first of all if you are using Pi4 add this into /boot/config.txt under [all] section:
enable_uart=1
dtoverlay=disable-bt
I believe (not sure though) for pi3 you need add:
enable_uart=1
dtoverlay=pi3-miniuart-bt

Also if you are having "serial.serialutil.SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)" error after a few successful readings (try launching script a few times) than you need to run sudo raspi-config and under "Interfacing options"-> "Serial" chose "No" to the question about the login shell and "Yes" to the second question. (It also could be "Advanced"-> "Serial")

Btw you probably want to use V3 of the sw: https://github.com/rcdrones/UPSPACK_V3