Hello,  I have a project which requires a gas tank sensor to talk to the APM 2.8   The gas tank sensor is the typical 0-190Ω variety like this:

one: https://www.amazon.com/Sending-Waterproof-Adjustable-0-190ohm-240-33ohm/dp/B09CYNP7KW/ref=sr_1_1?crid=2K4S4SEN21PN6&keywords=0-190+ohm+fuel+sensor&qid=1647602843&sprefix=0-190+ohm+fuel+sensor%2Caps%2C276&sr=8-1   

I know Foxtech has a solution that is almost US$200.  Just wondering if there is a cheaper easier way do it.  I can convert the Ohms output to 0-5V, and change the code on the APM accordingly.  Just wondering if somebody has done this already

Thank you!

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  • Thanks Ben, We would like to change "Battery Voltage" to "Fuel Level".
  • I would use a voltage divider to convert the resistance in voltage, connect it to an analog input of the APM. Then you can read the value directly in Mission Planner by using the power monitor feature : https://ardupilot.org/copter/docs/common-power-module-configuration... Normally it's used to monitor battery voltage, but it can monitor any voltage on any analog input pin. Maybe it's even possible to translate the value to percentage, and have a warning if below a given threshold.
    Power Monitor/Module Configuration in Mission Planner — Copter documentation
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