The last big feature of the vehicle I’m working on requires another motor, and I’m attempting to do this with a second L298 module. Unfortunately, when I tell the module to drive the motor the appropriate LEDs light up but nothing happens. I have tried this both with the L298s having separate power sources (preferred) and with a single shared 9.6V power source. There’s voltage across the power-in pins, and there is a voltage change when the module is told to drive the motors but it’s only around 0.2V. Both of the two L298s work fine separately, as do the motors when I hook them directly to a power source
Any ideas what might be causing this? An old thread mentioned a known issue with FEZ only having two PWM timers but no resolution was given.