Pololu VNH3SP30 with Arduino

Hi I am trying to control two drill motors with the VNH3SP30 dual chip board and an Arduino Mega 1280 controller. I am doing something similar to the diagram shown in the link below.

My question is: what is the use of the two capacitors that are provided along with the pololu board? I have run the circuit without the capacitors and it works. I am not an electronics expert…can someone please explain their use?

Hello, Omi.

There is a note about the capacitors on the product page for the dual VNH3SP30 carrier. The capacitors can be installed to help limit electrical noise and voltage disturbances on the power line; they are optional, so if your setup works fine without them, you do not need to worry about them.

- Kevin