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BlueROV Extra Sensor

Hello, i would like to add an external sensor for BlueROV2 which will be a metal dedector. I will attach a Arduino to the system and a current sensor for the current changes in the dedector. The arduino will get the sensor data and gave to it’s digital pin a HIGH or LOW logic level signal. and I would like to use ADC6.6V pin for seeing the data on the QGroundControl screen. I’ve tested this system but i cannot get any data on the Rangefinder (airspeed) parameter. What could be the problem? I’ve measured the Arduino’s digital pin output the logic voltage is working. But does the signal type wrong ?

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Please post your parameters file.

I’ve figured out my problem. I didn’t choose the analog sensor type on the parameters. Now I can read the values.

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