2 votes
Accepted

How to PID control a heater with SSR, Raspberry Pi and python

You've asked an interesting question, but one that is probably off-topic for RPi SE. The "answer" that follows is more along the lines of food for thought; I won't try to review your code ...
  • 19.2k
1 vote

how to detect human presence at the computer

"What I am not sure about is how to detect my presence at the computer reliably." Why not just take the easy route with no extra hats or sensors needed, and check for mouse movement or ...
1 vote

How much temperature is normal temperature for Raspberry Pi 4

I can recommend metal passive cases for the pi4 combined with some airflow, I might overdone it a bit here with 2 big super slow vents but my 2 pi4s are usually running in the low 30c max 40 under ...
  • 11

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