Here's a basic schematic with no speed control. No guarantees. Not tested. Not even simulated.

EDIT: Speed control added. Same caveats apply.

EDIT: made a couple of corrections.

Originally Posted by beochie

I dont quite understand the arrows --> are they suposed to meen ground? and why 2 wires going to the motor? in the first pic? Thanks a ton for the effort

Connect all the arrows (ground symbols) together. Also connect the negative terminal of your power supply to ground.
Not sure what you mean about the two wires to the motor. A motor will not run on only one wire.
Let us know if it works.

No offence intended beochie, but if you have to ask such questions then you might not be expreianced enough to build this circuit.

lol, Ron, I draw up a schem a couple of days ago, and just realised its almost identical to yours in every way The phototransistor, comparator, the rising edge trigger circuit and the 555...even down to the values used for the timer!

I would say 'great minds think alike' but that would probably drag you down to my level..so glad I didn't post it now.

Blueteeth

Originally Posted by Blueteeth

lol, Ron, I draw up a schem a couple of days ago, and just realised its almost identical to yours in every way The phototransistor, comparator, the rising edge trigger circuit and the 555...even down to the values used for the timer!

I would say 'great minds think alike' but that would probably drag you down to my level..so glad I didn't post it now.

Blueteeth

Does that mean there's only one way to skin a cat?
Just curious: Is "There’s more than one way to skin a cat” used in the British vernacular, or is it just an American phrase?

Originally Posted by Ron H

Just curious: Is "There’s more than one way to skin a cat” used in the British vernacular, or is it just an American phrase?

It's a very old British saying as well.

Originally Posted by Nigel Goodwin

It's a very old British saying as well.

I was guessing that was the case, but a quick search for the origins came up with references to American authors (e.g., Mark Twain). Similar British idioms were cited, but they were not very similar.
Several sites proposed that it referred to catfish (often called "cats"), which must be skinned before they are cooked.

Originally Posted by beochie

http://www.labelsourceonline.co.uk/P...9/etl120_g.gif
http://www.phihong.com/assets/images/E.GIF

this is what I think of as ground.^
that looks almost like an Amplifier lol

http://www.free-electronic-circuits....ymbols/amp.gif

Ground has many faces....