I'm trying to configure my tank sensors and am seeing some odd values in the raw 'Sensor resistance' field. If I put a short on the input, I get a reading of 48 ohms (ish). And all sensor readings are much higher than the actual circuit resistance. This causes problems when the tank sender reaches the 240 ohm end because the Venus reads something like 385 ohms and the upper limit in the custom setting is 264 ohms. (If this limit could be increased to say 400, this 'problem' would no longer be a problem).
I'm using a RPi and made my own analog HAT with an MCP3208. I have checked and double-checked all the resistors match the factory Venus circuit and accurately set the VRef to 1.8V. VenusOS version is v2.60 and dbus-adc is v1.27.
What I am wondering - and asking - is for someone with a real Venus or Cerbo to put a short on a tank input and see what it reports as a 'Sensor resistance' in the Remote Console? If you see zero or close to zero, I will then know the problem is at my end. I just want to eliminate a Venus software bug as the cause before I tear any more hair out.