Please, tell me what could be the problem
Arduino Mega entertain separately from the USB-out laptop, and motor drivers Pololu DualVNH5019 Motor Driver Shield separately from the battery voltage 12,75 V or adapter from router 8V.
When i use the test firmware Demo, the second motor is always get error “M2 fault” in serial monitor, and the program stops.
I’m delete code when we use second motor. Download to arduino and start it.
LEDs whats say about work my motors is lights , when I check the output voltage i get 3.91 V at the input 12,75 V.
If I connect the motor with shield, i get the output voltage is 0.
Please tell me how to fix this problem, i use the library during December 2012, changed some of the pins to communicate with the Mega.
A month ago, everything worked.
Is it possible to apply a voltage to the shield and use it, but the motor is not connected are used?
P.S. I hope that my driver is not death…
P.P.S. sorry for my bad english