I have a project going that wanted to "read" the output of a sauna timer. The timer is the Phoenix El-Mec Time switch MS65 , but details aren't available to the general public, AFAIK. I made an HCPL3700VM circuit to detect voltage on the "output" of the timer, and it works fine to detect 120VAC, but…

Operation of sauna timer not as expected

Railroader March 12, 2024, 2:49am 2

Mystery things.

Try and post schematics for Your build. Words is not the language to do it.

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