VOXL ArduPilot not starting up
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For anybody running into an issue with Ardupilot not starting up even while VOXL-PX4 is working, check your power module. You can check that Ardupilot isn't working properly by disabling all the services and running just voxl-ardupilot and voxl-mavlink-server as shown in the screenshots. Unlike PX4, Ardupilot will wait until it receives battery info so a broken power module causes it to stall forever.
This is what voxl-ardupilot output looks like with a broken power module:
This is what voxl-ardupilot output looks like with a working power module: