12v to 555 astable multivibrator to supply on off signal to 5v dpdt relay. Current to the rods supplied by Constant current module into the dpdt relay Will change that to either op amp LM334 with NPN transistors and keep these all on one board And probably use a 5k Pot to vary Iset to let other users determine how hot they want to cook their CS.
Be nice to throw a 4 digit ammeter in box but I hate cutting square holes.
I’m using a standard 12v voltage regulator module and rare earth magnets for the mag stirrer.
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