Our project is a Line Follower Robot that uses an UNO, an L9110s, and two geared DC motors.
Whenever I try to upload any sketch, be it an example sketch, a blank one, or my own, I get either one of these errors:
An error occurred while uploading the sketch
Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.
I can't seem to find a proper solution for my problem. The previous sketch seems to control the motor somewhat since the previous sketch used pin 9, and we use that pin on this project. So I can confirm that the Arduino is still working, and the driver is working.
Is it possible to burn the Arduino or the Driver by manually spinning the motors? Because when I tested it out, the LED on the driver lit up in varying brightness depending on the speed that I manually spun it at.
Any help would be appreciated. Pleaseeeeeeee