APM 2.8 Battery voltage is 0

ArduCopter Copter 3.2
1

Hi. I’M using apm2.8 with a power module. Battery voltage is 0 in both mission planner and mavlink system status message. How can I solve this?

Thanks.

2

I haven’t ever worked with the old apm2.8, but in my experience once you’ve selected what to monitor (voltage and/or current) and a power module type, then you need to reboot the vehicle before any of the readings or further settings take effect.

3

Carefully check the output from the PM.Sometimes they get reversed (from the factory) and most are aimed at a Pixhawk nowadays.

Also set it as “other” in the drop down,not as 3DR.

4

Thank you. Configuring power module type worked very well.

5

Now you need to calibrate it…