I've read tutorials and comments on forums that you don't want to connect your DC motor directly to PWM pins on an Arduino Nano because of the following:
- Reverse voltage
- Too much amp draw
I have a DC N20 motor that is 5V 70mA. What if I double up the PWM pins on each leg of the motor and bridge a diode across? Would it still not be a good design? Or is it ok?
I currently have a DRV8833 driver set up, they are relatively cheap from aliexpress but I am constrained on space for my project and trying to simplify my circuit as much as possible. Please let me know if you have any ideas. I need to be able to control the DC motor in both directions. Speed is not necessary since it's geared anyway.