2021-12-24, 03:58 AM
(2016-12-28, 11:47 AM)dreuf Wrote: How have you solved adding water and diesel level sensors to your Openplotter?
I want to use the original sensors in my tanks (0-180ohm)...
You can use SensESP and a ESP32 board. It's what I've done and it is working well. I just installed my first one with an external capacitive sensor on my holding tank. Software calculates tank.blackWater.0.currentLevel with a moving average, which helps with the voltage fluctuations. Connects to SignalK over Wifi, so no need to run long wires.
My next one will be for pressure sensors on my fuel filters and I think I'll add the water sensors to that one also, as that seems to be a simple voltage/no voltage scenario to deal with, resulting in sending a binary sentence to SK to trigger an alarm. Easy.