capacitor value for motor shield

Forum 2005-2010 (read only) Hardware Interfacing
1

Hi all,

I am wondering what is the value for c1, c2, c3, and c4 for motor shield v3.

http://blushingboy.net/p/motorShieldV3/

(I know it is obvious for the designer, but not me :slight_smile: )

Thanks!

dl

2

If you're referring to what became C10, C11, C12, C13 on the final components silk screen, they're marked as 104 ceramic caps, ie 0.01 uF, or per the 10 to the 4th, 10,000pF. The board with the yellow cased ones is using PolyStyrene or similar caps, probably the same value. I've seen 0.1uF or 0.01uF caps used in this position, they're noise bypass caps and serve to short the brush hash to ground so it doesn't get back into the electronics.

3

Thank you!