Very helpful article thanks!
Henry Minsky

Henry you are hard-core! Would love to see pics of your relay circuit. And thanks for mentioning a protoboard. I was unaware that they existed! Before I found the Honeywell unit, I was considering either a hobbyist breadboard or just gluing components inside a box and soldering wires between them. I didn’t know there was a step in between!

Good luck with the Honeywell upgrade!

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