Friday, March 03, 2006


UDN2559-based control board going

OK, I've got the resistors a factor of 10 out on the opto sensors on the first board, but I'm not using those anyway yet :) I'll fix that later. The main problem with the new board was a track cut in the wrong place - took a while to figure it out.

Now to modify the original board to use the new opto layout, and right resistor values. Then I should be able to control 2 motors. If that works I'll rearrange the bus to use the new power line arrangement Simon and Adrian figured out.

I've bought more stripboard, so hopefully I'll have 3 motors controlled soon.

It's still pretty beta so I'm not publishing yet. If anybody really wants the "how to" files though, mail me under caveat!

Vik :v)

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