PIC to control 3 DC motors

[kez22]

Hi, for a project I need to control 3 motors, turning on, turning off, and going forwards and backwards. Speed control shouldnt be needed.

From what I've read, to make each motor reverse I need to use a H bridge, with 4 inputs, on each one. So if I want to control all three motors from one PIC controller I will need a PIC with at least 12 outputs, is that right? If so, do you have any suggestions for the PIC I should use?

Thanks

 

[the mask]

you can use pic16f877a

 

[al111]

Wrong; you need to use only 2 input to a H bridge. You may be mixing it up with how many states a
H bridge can have.

 

[the mask]

can you send me in ksmksam@bigstring.com and i can help you

 

[eng.zizo]

you can use a latches .... and put the control signal through any latch per motor

 

[Tahmid]

Hi,
You need 6 output pins from PIC and so, you can use any PIC that has over 6 IO lines.

The smallest I can think of is PIC16F676, you can go all the way up to 40 pins if you like, but a 14-pin 16F676 is good enough.

For H-bridge you can use L298 or similar driver or discrete H-bridge design.

Hope this helps.
Tahmid.

 

[erdinch]

hello,
you should use 3 pic in order to control 3 dc motor,
I used to 12f675 because i can easily control everymotor and also you can controls speed by this way. i hope this chip will be helpful ERDINCH