Hi all,
I got a Pixhawk clone and set it all up for my quad. However, I'm getting a "Bad GPS Health" warning, and I don't know what it means or why it's triggered. I think it's a difference message than "GPS: No Fix". Does "bad health" mean that MP thinks something is wrong with the GPS sensor itself?
Also, my power module seems to be acting funny. The voltage it shows in MP is upwards of 0.5V lower than what the battery's voltage actually is. I can tell b/c I put a voltmeter/ampmeter between the battery and the power module. The voltage read by the power module drops quickly as the motors turn on and continues to drop quickly below 10.5V until I get a low voltage failsafe, even though the battery is really up at probably 11 volts.
Could these two problems be related somehow?
Thanks!
Replies
We usually get "Bad GPS Health" warnings when inside or have no fix outside. Seems to go away once it is outside and unobstructed. MP isn't really smart enough to assess the sensor itself. Like "Bad Compass Health" means you need to recalibrate the compass, not that there is something wrong with the hardware.
voltage will always drop a big amount when you power up the motors. 10.5V is a bit of a high setting for a failsafe with a 3S battery. Try flying a couple of meters off the ground without the failsafe enabled and see how far you can take the battery before you lose lift and start to drop. That will give you a sense for where you might want to set the failsafe