HiI am building a 1300mm octocopter with 30AH lipo. I want to be using a tegra tx1 for onboard visual processing coming from a sony a6000. I have built the drone and assembled it. I have configured…Continue
I have just looked at some of your latest logs. Same critical problem exists, bad voltage to the pixhawk, excessive battery voltage drop from idle to flight.
power from my copter
"To be completely honest, I'm not sure why that's happening. But try to flight the drone first in Stabilize Mode. In one of your logs, it seems that you start in Loiter and go up to 2 m and then crash it. I'm not quite sure how it…"
Thanks for the Suggestion. I shall check on the Battery and the Motors. But how do you explain the volatility in the voltage and the magnetic field. some flights show good voltage some show a bad difference and same is the case with eh…"
Judging from your flight log, you have a really high voltage drop. I'm not sure if that's the issue, but going from 24 V to 17 V on launch seems unusual. Maybe the C parameter of your battery is too low, or they are not in good shape.…"
today I performed my flight after much suggested changes in the power module and other power issues.
Test: Autotune = UNKNOWN - No ATUN log dataTest: Brownout = GOOD - Test: Compass = FAIL - Large change in mag_field…"
Finally I had my attopilot 180amp current sensor delivered. I have bench tested the drone before taking it to field for an actual flight. I also did an auto analyse on the flight log. interference and other parameters seem to be in check.…"
thank you so much for the support through out. I apologise for the late reply. I have recently changed my autopilot, Compass, shifted the battery a little further down and moved the autopilot also a little above its previous position. I…"
"I looked at your latest log. There is still a strong magnetic influence that follows current on both mags, one more than the other. there is also a large motor imbalance like one of the motors is not working or loosing sync."
thank you so much for the support. I have actually tested the drone yesterday again. I have moved the compass away from the battery, I have put the battery below the drone and the compass on a mast. and yet it had the same result although I…"
"moriati, please do not attempt to fly this machine until it is fixed. I noticed something. You are using a Pixhawk power module on a big copter and totally overloading it. You are lucky not to have a total power failure. The standard power module is…"