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Incorporating NodeMCU ESP8266 senders
#8
I like the idea of replacing my analog displays with something digital, thereby removing my tanks from my 12 volt set up. Mine are old VDO gauges and they work.

I understand the theory of resistance (VDO senders are 0-90 ohms), so that isn't really the proplem, but is there a way to integrate what I have without removing the tanks/guages from the 12volt house bank? Seems that most ADCs are isolated, so is it a simple case of limiting the voltage to 5 volt (or 3.3volts) from 12?
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RE: Incorporating NodeMCU ESP8266 senders - by SCarns - 2021-06-09, 05:14 PM

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