Bitcraze Forums

Hi,

I recently bought and assembled a crazyflie nano (1.0). When soldering it together I accidentally messed up the soldering of the M3 connector. The square pad got plugged and the round one no longer has any connectivity. By chance I discovered that I could get the motor spinning by attaching the white M3 cable directly to the transistor leg next to M3 (http://imgur.com/EhFJh9j). The black cable is attached as it should be but on the reverse side of the board. However, I do not know if this is a valid way of connecting M3? Since my crazyflie is too unstable to fly (it immediately flips over when applying thrust) I wanted to make sure the soldering isn't the cause of the problem before I continue troubleshooting.

From what I can see by plotting the performance of the motors (http://imgur.com/7XxyCYx) in the client, they are performing about equal.

Please tell me if there is any other data that might aid in analyzing the problem.


Best regards,
Alex

Yes that is perfectly OK. I would expect that either you put the propellers on the wrong way or maybe you put one of the motors on the wrong arm?

Sorry for late reply. Haven't had time to look into things until now. You are right, I had accidentally connected M2 to the M4 connectors and vice versa. Fixed it and now the crazyflie is flying! It's drifting slightly, seems like M3 and M4 is thrusting a little bit more than M1 and M2, but I guess that can be calibrated.

Thanks for the help!

Alex