Well I'm all the closer to installation/deployment:
On the terminal block from left to right:
- Panel Sensor wire
- N/C
- N/C
- Tank sensor/capacitor
- Ground
- 12V
The four resistors at the top right are my two voltage dividers for the input comparator. The two resistors at the lower right is the RC resistor for the tank capacitance measurement and the pullup resistor for the wakeup circuit.
The big jumble in the middle is the 3 transistors and MOSFET connected to the sensor wire. The two resistors at top left are the 67k and 120k "replacement" resistors for the tank wiring harness.
Haven't tested out the circuit on the RV yet. Have to first install the foil "sensor" and sealant over it. Was going to do that today but there was a lake at the storage lot that I didn't want to wade through.
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