I am making a drone and ran into some issues while calibrating. Here are my steps: 1. I attached 4 new 2300 KV brushless motors to 4 new 12 AMP ESCs. My batter is a 3 cell 2200 mAH. 2. I was able to test them individually. 3. One of the motors stopped making sound after couple of tests. I blamed it on the ESC and therefore, changed the ESC. 4. On the new ESC the motor makes a sound but not loud calibration tones compared to what I hear in other Esc-Motor combinations. 5. When I run the calibration sketch of arduino, the motor does not spin fast at all. e.g., on max(2000 microsecond), it makes a 1200 microsecond type of rotation. (motor.writeMicroseconds(2000)) 6. Another fact is, I did burn an ESC attached to this motor and added a new one later. The ESC burned because I made a polarity mistake on leads coming from the Lipo battery. I did not notice any burning smell in the motor itself. 7. I checked the brushless motor for any burn smell - did not find any. I checked the resistance between different wires of the motor, they have small resistances but not open.
question: 1. Is my ESC bad or the motor bad? How do I know? Does the loudness of the callibration tone indicate anything? The battery is full power 12.4 V. 2. What additional tests should I perform? I did switch the leads of the motor, but did not make any difference. 3. Is there a way to test the motor with multimeter to check if it is bad. I do not want to buy a new motor without figuring out what is wrong, as motor looks ok ( I still feel calibration is not perfect as other motors..) 4. is there a better way to reset and re-callibrate this motor?
thanks for your guidance.
marc
question: 1. Is my ESC bad or the motor bad? How do I know? Does the loudness of the callibration tone indicate anything? The battery is full power 12.4 V. 2. What additional tests should I perform? I did switch the leads of the motor, but did not make any difference. 3. Is there a way to test the motor with multimeter to check if it is bad. I do not want to buy a new motor without figuring out what is wrong, as motor looks ok ( I still feel calibration is not perfect as other motors..) 4. is there a better way to reset and re-callibrate this motor?
thanks for your guidance.
marc