I would like to share something happened with me when testing T200 thrusters.
I am using 4 T200 with basic ESCs, and I gave all of them the same duration using Arduino connected to MATLAB, 3 thrusters worked fine except the fourth one, it was doing reverse thrust. I checked the wiring of the ESCs and the motors and they are all the same, also the connections between ESC and the power supply are the same. Moreover, I checked the propeller of each motor and they are all the same. Could you please tell me what might be the problem?