PWM SSR Controller

[matjans]

I've been working on an arduino based slow PWM SSR controller for some time now, and v1 is operational.

In a case. Old pic, it now has 2 controls - an analog pot for setting powerl level and a rotary pot for the menu.

Oooohhh look nice flashing lights. Why the pressure reading? A virtual parrot, based on ambient pressure and measured vapor temperature (->Edwin Croissants eparrot but simpler)

And it works in real life too.

Has a whole bunch of settings in the menu, warning and error temperatures (only beep or automatically shutdown heaters etc). I'm not a pro programmer so the code is "clunky" (or worse) but it works. Some small flaws to iron out.



Hard and software details on github: https://github.com/matjanss/StillControl

Works like a charm and might be useful to reuse for all you tinkerers. No warranty/liability/support

[Dancing4dan]

Nice project. I like to tinker as well. Seems like more information can be provided than what is actually needed for distillation though. Could also be used to control fermentation and mash temperatures though.

[matjans]

Yeah sure, that’s why the stuff is on github. Have at it. A software PID is implemeted easily enough.