I've got an L298N dual H-bridge which I'm using to control two DC motors with an arduino. I want to be able to control the speed of the two motors using PWM. My understanding is that I need to connect the two enabling pins ENA and ENB to PWM pins on the arduino (please correct me if I'm wrong).
If you notice closely at the picture of the dual H-bridge, you'll notice that the ENA and ENB pins are enclosed by jumpers connecting each of them to a 5V pin. I believe that I need to remove the jumper in order to utilize the enabling pins directly (again, please correct me if I'm wrong).
If all the above is true, then this leads me to my primary question: How do I remove these jumpers?
I've tried to remove them just by pulling on them with my bare fingers, but they don't seem to come out at all. My fingertips are very large in comparison to the jumpers themselves and can't grasp them very easily. I'm not sure if using pliers will damage the board in any way.
I'm a newbie at this, and I'm not sure how strongly attached the jumpers are to the board. Is there any special trick to removing them?