Hi, I am hoping for some help on how to progress with my project.. I am trying to make a data logger for my floor heater control box. I have three thermostats that each activate a 24V valve depending on temperature. I want to latch on to these 24V signals, voltage divide them down to 5V and connect…

Reverse polarity on inputs?

LarryD November 22, 2021, 12:09am 2

Yes, please do so.

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