I have had 2 issues now when my battery runs low. Anyone else had issue?
I have no xbee yet, so I am still old school back and forth into the house to the usb cable...
for first time night before last, I ran the battery down and got no notification at all from the board. I figured no big deal, changed the lipo out, proceeded to connect and took off, 2 seconds into the flight the tx seemed to REALLY lag, then she shot into the air about 40 feet and kept going. I flipped the still untested loiter to see if I could regain any control, lowered throttle and she came sliding in relitavely undamaged thanks to low lying crape myrtle trees, just prop damage. When I brought her into the shop, the radio side of the board would no longer power up. it was odd...
MY SETUP I have 1 power from an esc to my motors (output), I cut and shrinkwrapped the 3 unused wires to get used later. The jumper clip was clearly in place, and everything powered up just fine until I ran the battery low and the board freaked. Not the first time I burned a power diode, did it in one of my quadrinos, so I wired up power from one of the extra escs to the radio for power. Worked fine to power the board.
I checked the jumper, still there, worked when I powered the radio side so I didn't remove the jumper. Then when I powered up with battery and USB, the jumper smokes a second, I pulled usb and pwr jumper wires from the second esc, and suddenly I had pwr to the input side again... Weird!
So I remounted board to correct another drift issue, went to fly and ran the battery low again, wouldn't take off due to low power. I brought her in to tune the PIDS, and when I got inside, the motor rail would not power up.
Is there an issue with low power batteries burning up this board? Where would I start trying to troubleshoot which is the power diode that is blown, and can I change it? I have pwr going into the output motor side and nothing. See photos for my temorary workaround and any suggestions, as its wired now will it work? I will need to change to a 2 pin on aux 3? far right pin if I want channel 7, but other than that will it work?
In the photo you will see a 3 wire still connected to the motors side, this is to show that it is still connected and I know by testing it on the radio side that there is power there. The big red and black wire is from second esc and is powering the board. I lost the original bind clip an the power rail, I rigged a clip, but it makes no difference at all now.
Thanks guys sorry complicated problem= long post... Thanks for getting through it... NAd for the help...
Replies
Did you program your ESC's? Typically they are programmable and can be set to either continue running, reduce power, or shut down based upon a programmable low voltage. This is done so that the batteries don't get damaged.
All I need to know simplified, if someone could look at the photos, will this be ok as a power workaround for now?
Also board will power up from USB, but that usb is loose already, I expect that too be an issue in the near future. My xbees will be here in 2days so maybe not:).