> As part of my circuit, I used a relay to convert a full wave rectified
> AC input to a half wave to detect when the "time set" switch is pressed.
> This is just a series diode being switched in and out of a leg of the AC
> path to the full wave rectifier.

I assume the real question is how to get user input to the spinning part?
If so, there are a number of ways.  We use an IR led/detector in a similar
product.  How are you getting power to the rotating board?


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