Important changes to forums and questions
All forums and questions are now archived. To start a new conversation or read the latest updates go to forums.mbed.com.
4 years, 8 months ago.
Why won't 8x20mm small dc motor not spin with the stspin240 board?
Using the code provided by ST to run the program on the expansion board, I can get a 6V dc motor spin on 2S 7.4V Lipo battery. However, I cannot get a small quadcopter dc motor rated for up to 4.5V to spin on a 1S 3.7V Lipo battery. I even tried the 7.4V battery on the small motors and get no movement. I can see the LEDs stepping through each of the cases but the motors remain motionless.
I have tried a few different PWM frequencies without success. I am sure I have the right motor and battery combo that fits the minimums of the STSPIN240 datasheet, so what else could be the problem?