APM 2.5+ power module

Posted by mark on November 15, 2013 at 3:15pm

I am trying to get the APM power module to work but I think I am a bit confused as to how this is meant to work. According to this page:

"You should normally remove the APM’s JP1 jumper when using the Power Module so that only your APM board and your receiver are powered from the Power Module’s on-board regulator and not from your ESCs."

Ok, so I get a readout in MissionPlanner of the current voltage that looks right, but I dont get any power to the APM when I unplug the usb. Isn't the PM meant to give power to the board and accessories, eg GPS/OSD? Nothing lights up when I plug in the battery attached to the power module. If this doesnt work for some reason, can I just put back the JP1 Jumper and monitor the voltage? I am stumped here. 

Thanks in advance my ArduBrothers!

--mark

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Replies

  • mark November 15, 2013 at 6:32pm

    Thanx yall!

    Got it working. This is going to be a bad beeoch!

    3692880947?profile=original

  • Charles lakins November 15, 2013 at 3:53pm

    Is it a real 3DR power module?

    if it's an ebay or rctimer module they don't have an onboard regulator to supply the apm

  • Admin
    Thomas J Coyle III November 15, 2013 at 3:41pm

    @mark,

    I assume that you have the 6 wire cable from the PM plugged into the APM 6 pin power connector?

    When using the PM you should not have J1 installed.

    You should not be using the PM and the USB to power the APM at the same time.

    When you are powering the APM with the USB what "current voltage" are you reading and where in the MP?

    Normally APM pin A13 is used to measure the battery voltage being measure by the PM.

    To calibrate the battery voltage reading I use the radio telemetry and power the APM with the PM to see the battery and/or current reading in the MP HUD.

    Regards,

    TCIII ArduRover2 Developer 

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