QNo.1 application on PIC 16F887 microcontroller: Write a program using MikroBasi

Question

QNo.1 application on PIC 16F887 microcontroller: Write a program using MikroBasic Pro to develop the following The four windings terminals (W1-W4) of a bipolar stepper motor are connected to RBO-RB3 respectively of 16F887 through suitable driving circuits. The microcontroller rotates the stepper motor clock-wise using the pulses given below starting from WI to W4. And it rotates the motor anti-clock-wise using the same pulses but in reverse order i.e. starting from W4 to WI W1 W2 W3 W4 0 0 0 0 0 A switch S1 is connected RA2. If S1 is OFF, the program will rotate the motor clock-wise. And if SI is ON, the program will rotate the motor anti-clock-wise. The time delay between sending each control pulse (step) is 0.2 seconds for both directions. Program should be keep on working in the same manner

Explanation / Answer

1.Code is as follows (using PIC 16F887)

void main()

{

ANSEL = 0;   

ANSELH = 0;

PORTD = 0;

TRISD = 0;   

while(1)

   {

PORTD=0x09;

Delay_ms(500); //delay

PORTD=0x0C;

Delay_ms(500);

PORTD=0x06;

Delay_ms(500);

PORTD=0x03;

Delay_ms(500);

   }

}

Note: You can adjust the delay to control the speed as per your wish just by changing the value in Delay_ms(500)

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