reversed VUSB and GND, any hope?

Firmware/software/electronics/mechanics
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japreiss
Beginner
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Joined: Thu Mar 24, 2016 1:17 am

reversed VUSB and GND, any hope?

Post by japreiss »

I "let the smoke out" of a Crazyflie today :( :( . I am using the Crazyflie 2.0 as flight controller in my hexarotor build. I power it over VUSB from the power distribution board. I was getting sloppy at end of day, and put the Crazyflie in upside down, so GND and VUSB were swapped. Now my Crazyflie won't turn on (no LEDs light), and the resistance between VUSB and GND is only 65 ohms. Is there any hope, maybe some small set of components I can replace? Or a troubleshooting procedure?
tobias
Bitcraze
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Joined: Mon Jan 28, 2013 7:17 pm
Location: Sweden

Re: reversed VUSB and GND, any hope?

Post by tobias »

That is a bummer. I don't have any experience with that, only when swapping GND and VBAT and that most often work out without any damage.

Can you maybe see the smoked component or components, or maybe even smell it. Often they get a bubble in the plastic or similar. If I would guess it is the charger chip that smoked, the chip closest to the battery pads.
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