Need help how to control the stepper motor using PIC 16F84a?

[xylynn]

16f84 stepper motor

Dear all
I am the new one of using PIC. Now I want to make the stepper motor control ciruict using PIC 16F84a and transistor to drive the stepper motor...
I want to control the speed and the direction of the motor...Would anyone like to show me or give me the circuit diagram? Thank a lot to all

with regards
xylynn

 

[dindeds]

16f84 step motor

Try this link :

**broken link removed**

 

[shashi_dhar123]

pic16f84 stepper motor

i too need help with the same

 

[ssss959]

pic16f84 stepper motor controller

see link
**broken link removed**

u find

DC Motor Controlling System using PIC

 

[blueroomelectronics]

stepper motor control pic

Roman Blacks stepper design
https://www.romanblack.com/lini.htm

 

[mkiani]

16f84a stepper motor control

use of uln 2003 ic.
or by 4 transistor you can easily control step motor:
write on port:0001-0010-0100-1000-0001-...

 

[bigal]

16f84 motor

Try this

http://www.dakeng.com/u2.html

spotted it a few years ago, i use their TurboCNC software and that is very fine. so i image this is of similar quality.

 

[ehud42]

Re: stepper motor control pic

Roman Blacks stepper design
Creator of the Linistepper stepper motor driver

Interesting architectural decision he has made to run a tight loop continually testing PORTA for bit changes - essentially implementing his own interrupt request detection / handling. I can see this being handy for driving 2 motors through PORTB (8 bits - 4 per motor) with step & dir for each motor being read on PORTA (plus an inhibit?).

However, he is driving only one motor. So why not use RB0 as step pulse and use an interrupt handler?