Problem With PIC 16f877a and DC Motor

[ankit35]

I am stuck with 2 problems :
1. WHen I run the HEx Code in ISIS proteus.. Motor runs but very slow in speed. If i implement this in real time, then motor will run in normal speed?

2. How To Control Left And Right Direction Of The Bot?

Thanks in advance.

 

[irfan ahmad]

1) proteus does not simulate motor in fast speed . you can connect oscilloscope or voltmeter to compare your code in real life and simulation
2) use l298 ic to forward and reverse.

 

[jayanth.devarayanadurga]

You have to use PWM for speed control and bi directional motor to change the direction.

 

[Ishah]

Hi all, i am doing the same project DC motor with PIC16f877A + L293D and draw the circuit in proteus. * Already change D4-D5 to LED.
My problems are :
1- why, when i push one button the LED will off, but the rest of LED will blinking?
2- Why the motor did not run? Can someone check my circuit and my code.

Here also the Source code that I write in mikroC PRO for PIC.

 

[ankit35]

why 12 v with switch?

 

[Ishah]

why 12 v with switch?

Sorry already change to 5V...

 

[ankit35]

Sorry already change to 5V...

When u pressed the switch whole 5v is passing through the switch. So it will be logic 1. and to stop the motor both pin value will be 0 not 1.

 

[Ishah]

ankit35,



It is mean i need to change the code?

if(TRISB.F0 == 0) //If the switch is pressed
{
TRISB.F0 = 1;
TRISD.F0 = 0;
TRISD.F1 = 0; //Motor Stop
Delay_ms(1000); //1 Second Delay