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Automation, sensing and robotics • Re: Digital potentiometer

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i would just use a mosfet or relay to switch the main 12v supply on/off

then some kind of temp sensor that the pi can interface with, to measure its temp

and then implement the entire thermostat logic on the pi

just slap a fixed resistor value where the pot goes, and turn the 12v on/off instead
Unfortunately that won’t work, as the heater goes through a start-up and shut-down process - so switching the 12v on and off would either just not work or break something.
If I keep the existing controller, I could just control the on/off and let the controller deal with the temperature. That is the simple (easy) solution, but I’d like to be able to do the temp via Raspberry Pi too - but appreciate it May be too difficult / not possible

Statistics: Posted by GordsM8 — Fri Apr 04, 2025 11:15 am



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