[Solved / Archived] Read Input Voltage from Witty Pi 4 with Bash Script

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mmoollllee

(@mmoollllee)

Posts: 33

Eminent Member

Topic starter

See this Gist to read Input Voltage via Bash Script. Thought I'm going to share this as it might help someone 🙂

Posted : 28/02/2024 6:08 pm

uugear

(@admin)

Posts: 319

Member Admin

Thanks for the sharing.

Posted : 28/02/2024 6:23 pm

mmoollllee

(@mmoollllee)

Posts: 33

Eminent Member

Topic starter

Don't thank me too soon 😀

It turns out, it doesn't work reliable!?

I'm calling it with the following python code

v = subprocess.run(["/usr/bin/bash", "witty_voltage.sh"], capture_output=True, text=True).stdout.strip()
voltage = v + " Volt"
return voltage

Sometimes it returns "0 Volt" sometimes " Volt" sometimes "13.11 Volt".
Maybe someone can help me out!?

Posted : 29/02/2024 10:41 am

mmoollllee

(@mmoollllee)

Posts: 33

Eminent Member

Topic starter

Got it working. And added a "read scheduled startup" script too 🙂

Posted : 10/03/2024 1:19 am