Need Help In This Circuit !

ericgibbs said:

hi Again!..

From your flow chart it appears that you want to drive a motor clockwise for 5secs, stop, then drive the motor counter clockwise for 5secs. stop. is that right?

Is the motor a simple dc reversable motor or a stepper motor?

Whats the power requirement of the motor Volts/Amps etc..?

Is it driving anything?

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flemmard said:

Hi,
You are exactly right !
And I'm using a simple DC reversable motor.
The voltage from PIC is 5v to drive the motor.
I wish to make a sliding door using this concept.Just a sliding door model.
I need more power for that ? A gentle sliding would be fine.

Thanks !

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ericgibbs said:

hi,
You dont need a PIC for this.

Use two 555's connected as monostables.
Trigger MS1 for 5secs fwd drive, at the end of the 5sec, it trigger the second MS2 and a 'H' bridge motor drive for rev for 5secs.

Does this help?

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flemmard said:

Hi,
I need to drive my output signal from PIC to activate this motor circuit.
Can you please elaborate more now?
Thanks

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ericgibbs said:

hi,
Have you decided which PIC you are going to use and are able to write a PIC program?

Look at the attached pdf for idea's, you can replace the two relays with transistors if you wish.

The simple 'H' bridge as shown, using relays, is fool proof.

The trigger could come from your PIC or you could use two PIC pins, one for fwd one for rev.

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