Motor rotation direction

[AriHell]

motor rotation

How can I control a motor rotation direction with a pic?
I have LM324 it supose to help isn't it?

Thanks.

 

[wp100]

motor rotation direction

Hi,

It depends on exactly what you are trying to do and what type of motor you are trying to control ? - dc brush motor, stepper, servo etc.

Each type of motor needs a different method of control from the pic - which one are you using ?

You can change direction of a dc brush motor just by changing the state of a double pole relay with the pic, or depending on your motor drive hardware by the software alone.

An LM324 is just a quad op amp that can be the basis of a pic-less dc motor controller when used with other parts - what makes you think it has something to do with direction changing ?

 

[AriHell]

dc motor rotation direction

The motor is a dc motor and I use pic16f84a.

 

[wp100]

control motor rotation with pic

Hi,

Sounds like you are just starting out on motor control so would suggest you do a simple search for one of the many web base tutorials, there is loads of good stuff out there - here's one,
http://www.pyroelectro.com/tutorials/dc_motor/index.html

Also look at the masses of free info in the Microchip Application notes.

 

[rushi53]

pic dc motor direction change

no need to use any extra ic
if it is dc motor then just reverse the logical output of PIC

only ic u have to use is motor driver ic... say L293D

let me know if you need more info



-------------------------------------------------
Thanks,
Rushikesh
www.projectsof8051.com

 

[john.l]

relays for reverse dc motor rotation

what is the purpose of L293D and cost ? is there any alternative for this ic ?

 

[rushi53]

how do i change direction of brushed motor

what is the purpose of L293D and cost ? is there any alternative for this ic ?

Purpose motor needs 12 volts power supply and output of microcontroller is 5 volts. This ic acts like converter(actually its not convertor but for simplicity u can consider.)

cost in pune,india it will cost near Rs.100/-

alternative u can use transistor circuit. but it will be large size and complex as compare to 293, so i will suggest 239


Let me know if you need any more help
__________________
Thanks,
Rushikesh
www.projectsof8051.com

 

[john.l]

rotation direction dc motor

what is the purpose of L293D and cost ? is there any alternative for this ic ?

Purpose motor needs 12 volts power supply and output of microcontroller is 5 volts. This ic acts like converter(actually its not convertor but for simplicity u can consider.)

cost in pune,india it will cost near Rs.100/-

alternative u can use transistor circuit. but it will be large size and complex as compare to 293, so i will suggest 239


Let me know if you need any more help
__________________
Thanks,
Rushikesh
www.projectsof8051.com

thanks for providing this information

actually I am not very well familiar with ICs, I can do well in analog circuits.

can you help me in the interfacing of 239 ??

 

[rushi53]

what makes a motor rotate

@john.l

Connection is very simple
Download the datasheet of L239D
1. connect 4 input pins to microcontroller
2. connect 4 output pins to motor
3. give +5v and +12v power supply to IC
4. connect ground

thats all


Let me know if you need any more help
__________________
Thanks,
Rushikesh
www.projectsof8051.com