Irving I'm following your design and with some googling I've found it uses a Hex Schmitt trigger, Flip flop and down counter so I'm learning already . . . . . . Now I just need to get my head around what they are and how they play together.
While googling the codes have been showing up with letters on the ends like "BE" or "BCM" what do they indicate.?
Should I start to play with this now and get these bits to play with or will there be more versions so hold off.?
You wanted a learning experience so I deliberately left some info off the diagram. :)
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.
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.
Last edited by irving2008; 29-04-2014 at 05:38 AM.
Here's another idea.
I used to work on plant where Selsyn Motors were used for synchronisation purposes and remote indication. It occurred to me that stepper motors were very similar so a quick search found this;
Fun with Stepper Motors - Synchronous Operation without Power - YouTube
No external electrical power required just a crank handle on a spare stepper motor.
Last edited by EddyCurrent; 29-04-2014 at 09:26 AM.Spelling mistakes are not intentional, I only seem to see them some time after I've posted
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.?
Post #48-49: Looks like that was meant as a serious comment - sorry I didn't realise.
Last edited by Jonathan; 29-04-2014 at 06:01 PM. Reason: comma splice
555 + MPG would work and would probably be simplist but I don't mind playing and want to learn something in the process and so long as Irving or some other kind sole doesn't mind giving directions then I'll wait and see all the options.!
if you're ok with a switch for Dir then there won't be a v2 at the mo.
Suggest, if not done already, you download & print off datasheets for chips and get a handle on what each does.
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