I bought a BTS 7960 (IBT-2) motor driver,
I'm just trying to turn the motor clockwise and anti clockwise based on the serial input 1 or 2 for a delay of 100ms.
It works when VCC and ground pins of the driver are not connected to anything.
but when VCC is connected to vin or 5v of arduino, It shows no signs of life.
Should I connect Vcc and Gnd pins of the driver?
Or the driver is fault?