Controlling PWMs through hardware

[EricVanWyk]

Originally Posted by RandomStyuff

The big question is if this is possible in any way directly through some sort of lever ( we thought of using a potentiometer but the thought of the waisted electricity makes us shiver)to control the PWM signals sent to the victors?

Does anyone know where we can find what data is transmitted on which wire and the 'protocol' involved.

Don't be so quick to shiver at the power draw of a potentiometer. Typically it will be on the order of milliwatts. If you are moving a human with your device, that is nothing.

I have to run or I'd be more explicit, but google "PWM 555". A 555 is a standard chip that is useful for all sorts of timing operations. It is relatively straight forward to combine this with a few resistors/capacitors and your pot to make the PWM signal you want.

Edit: The modern way to do this is what Andrew said. Cheapy microcontrollers have gotten so easy and cheap that there are fewer and fewer reasons to do things in analog. The 555 is the old fashioned tried'n'true.

[DonRotolo]

See the last post in THIS THREAD

Search before you post, you'd have had the answer 18 hours ago.

[keehun]

At my school, we have a box with a nob and PWM out. It lets us generate PWM. I don't know what's in the box, how it works, but it has come useful to us at times... Sorry I can't help you any more.. but something like that does exist..

[Trent B]

Originally Posted by keehun

At my school, we have a box with a nob and PWM out. It lets us generate PWM. I don't know what's in the box, how it works, but it has come useful to us at times... Sorry I can't help you any more.. but something like that does exist..

Ill track it down one of these days and open it up to see what is inside (take some pics.)

[DonRotolo]

...or you can look at the thread I referenced 2 posts above, which tells you what's going to be inside that box of yours...