Think i found the main problem?
eSilviu,
I understand your logic...I think:)
I have just got back from the shed and think i have found a problem. I put a meter across pin 2 & ground on my PP & i am only getting 2.6 volts out. My Gecko 251s require 3.3v minimum. After 2 months of head scratching and making changes, i never bothered to check what my PP voltage was. I just assumed it was ok because my motors ran and ran well even at thier highest speed allbeit with this knocking noise. If the Geckos minimum is 3.3v, then how are they working at all?? What are your thoughts on this?
Julian.