My turn for help with Pulse multiplier for test rig.

[JAZZCNC]

Hi Dean,

You wanted a learning experience so I deliberately left some info off the diagram. :)

Good man I like a challenge. . Lol

These chips come in various package formats, the suffix identifies which so decide how you're going to build it and get the appropriate version. If you're breadboard it you need the PDIP package.

Yes BB at first then will probably make a better job with a board.

I don't foresee any major changes and these chips are only 30p or so so get them. Maybe even a couple of each just in case :)

I do need to consider Jonathan's valid suggestion re direction so there will be a v0.2 shortly.

Ok there's no rush so I'll wait until everything settles down then just buy a load of bits at same time and I'm sure there'll be plenty of Magic smoke in the air so I'll get spares. . Lol

Not being savy with these electronictrickery gismo's then it's probably technical chip stuff why it's a problem but Won't the drive take care of the Direction just with 5V on the Dir pin.?