Here we are into another great learning tutorial. We hope that you have cross checked all the breadboard connections of Interfacing L293d Motor Driver with 8051 Microcontroller on Bread Board. Following is the source code of this chapter. Just copy and start your keil compiler and program your microcontroller:
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| //******************************************************************************************************** | |
| //www.go8051.com | |
| //Chapter 7 | |
| //Interfacing L293d Motor Driver with 8051 Microcontroller on Bread Board | |
| //Created By go8051.com | |
| // Open source | |
| //email : 8051blog@gmail.com | |
| //******************************************************************************************************** | |
| #include<reg51.h> // Header file for 8051 microcontroller | |
| sbit IN1=P3^7; // Defining Port 3.7 as Input1 for motor | |
| sbit IN2=P3^6; // Defining Port 3.6 as Input2 for motor | |
| sbit IN3=P3^5; // Defining Port 3.5 as Input3 for motor | |
| sbit IN4=P3^4; // Defining Port 3.4 as Input4 for motor | |
| void delay(); // function prototype for delay function | |
| void main() // Start of main program | |
| { | |
| IN1=0; // Declare IN1 pin as Output pin | |
| IN2=0; // Declare IN2 pin as Output pin | |
| IN3=0; // Declare IN3 pin as Output pin | |
| IN4=0; // Declare IN4 pin as Output pin | |
| while(1) // Infinite While Loop | |
| { // code for forward movement | |
| IN1=0; // Set IN1 as 0 | |
| IN2=1; // Set IN1 as 1 | |
| IN3=0; // Set IN1 as 0 | |
| IN4=1; // Set IN1 as 1 | |
| delay(); // call delay function(5 secs approximately) | |
| // code for backward movement | |
| IN1=1; // Set IN1 as 1 | |
| IN2=0; // Set IN2 as 0 | |
| IN3=1; // Set IN3 as 1 | |
| IN4=0; // Set IN4 as 0 | |
| } | |
| } | |
| // this delay function will provide a delay of 5 secs approximately | |
| void delay() // function definition of delay function | |
| { | |
| int i,j; // declaring variable i and j | |
| for(i=0;i<=1275;i++) // first for loop which will loop 1275 times | |
| for(j=0;j<=5;j++); // second loop which will loop for 6 times | |
| } |
And here is the zip file of the source code. Just click on the following icon to download the source code of Interfacing L293d Motor Driver with 8051 Microcontroller on Bread Board:
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