I have bought 4 VNH5019 arduino shields pololu.com/product/2507 to use with arduino UNO R3, i followed the user guide: solder pins, download library from github,…
I use a external 12v power suppply for the motor and want to use usb arduino port to power the ardu so i don’t use the jumper.
I can load the sketch and open the serial monitor, i get:
- Dual VNH5019 Motor Shield
- M1 current:0
- M2 current:0
But no leds in the shield are ON and motor not spin…
What can i check =???