I smell burnt IC :(
Posted: Fri Apr 13, 2018 1:23 am
I was building a big quad, and kept burning through batteries in calibration so I hooked it up to my bench PSU since it's tied to a box anyway. It has a current limit of 5.2 A, but I could increase the voltage. in an effort to get more power to the drone, I turned the voltage up to 16.8 V (equivalent of 4S, hot off the charger), it worked at first, then the drone reset and I could smell a faint smell from electronics class of burnt IC! Oh no!!! I unplugged everything.
I am using these ESCs with BEC, 16.8 V is the top of the rated limit, but things have safety factors right?
https://hobbyking.com/en_us/turnigy-plu ... tore=en_us
It puts out 5 V to the big quad deck. I am thinking I somehow over volted my CF2. I have not yet checked the outputs, but the drone appears to start normally (correct sequence of light blinks, though my m1 LED fell off and I resoldered -- not reliable), but will no longer get picked up by the crazyradio. I bought two more CF2 for testing lol.
Tobias said in another post where I mentioned this:
If you put 17V on the 5V input there is a change something broke, most likely the power management controller on the CF2 or the Schottky diode on the BQ-deck.
Will I damage anything if I connect this BQ deck to a new CF2? do you think I could fix the broken parts in this drone? I should probably try reflashing new firmware in case something got corrupted, but I'll have to look up how to do that without the crazyradio. It seems I need a Jtag or SWD cable as per this:
https://wiki.bitcraze.io/doc:crazyflie:dev:starting
my bus pirate should do right? Or am I wasting my time flashing firmware?
I am using these ESCs with BEC, 16.8 V is the top of the rated limit, but things have safety factors right?
https://hobbyking.com/en_us/turnigy-plu ... tore=en_us
It puts out 5 V to the big quad deck. I am thinking I somehow over volted my CF2. I have not yet checked the outputs, but the drone appears to start normally (correct sequence of light blinks, though my m1 LED fell off and I resoldered -- not reliable), but will no longer get picked up by the crazyradio. I bought two more CF2 for testing lol.
Tobias said in another post where I mentioned this:
If you put 17V on the 5V input there is a change something broke, most likely the power management controller on the CF2 or the Schottky diode on the BQ-deck.
Will I damage anything if I connect this BQ deck to a new CF2? do you think I could fix the broken parts in this drone? I should probably try reflashing new firmware in case something got corrupted, but I'll have to look up how to do that without the crazyradio. It seems I need a Jtag or SWD cable as per this:
https://wiki.bitcraze.io/doc:crazyflie:dev:starting
my bus pirate should do right? Or am I wasting my time flashing firmware?