Remote Control Car Project w41d

Submitted To: Sir Azhar Zaidi

PROJECT REPORT RC car using PIC microcontroller

This report explains the design and working of a remote control car. It also contains the source code of programming used for car [01/06/2011]

Remote Control Car Using PIC

REMOTE CONTROL CAR USING PIC Description: The project named as “REMOTE CONTROL CAR USING PIC” is built by making use of DC motors. One DC motor is attached with one rear tyre and other is attached to other rear tyre. When these motors run simultaneously, they cause motion of car in forward and reverse direction. To move the car left or right, one motor is switched on earlier than other. Hence the car will turn in direction of motor which is switched on after a delay. The application of this project is found in our daily life in the toys, having a remote to control the car’s movement.

Components Used:  PIC18F452  DC Motor  L293D  DC Supply  Car Model

 PIC18F452: PIC18F452 microcontroller is used to control the DC motors via programming. The programming is done in C language. It has 40 pins out of which 33 pins can be used for input & output. In this project, PORTB is used as an output port and PORTD is used as an input port. Push buttons are attached at input for control of car and motor driver is attached at the output port which is further connected with DC motors.

 DC Motor: DC motors are used to move the car in forward & reverse direction and to turn the car left & right. Two switches are used for forward and 2 | Page

Remote Control Car Using PIC

reverse direction and two switches are used for leftward and rightward motion.

 L293D: To change the direction of DC motor, H-bridge circuit is used. L293D is the integrated circuit of H-bridge. This is the driver of motors.

Circuit Diagram: 3 | Page

Remote Control Car Using PIC

Compiler & Other Software Used: 4 | Page

Remote Control Car Using PIC

The compiler used for compiling the C language code is MIKROC PRO for PIC. Proteus 7.7 is also used for the simulation of circuit.

Source Code: void main() {trisb=0x00; trisd=0xff; while(1) { if(portd.f0==1) { portb.f0=1; portb.f1=0; portb.f2=1; portb.f3=0;} else if(portd.f1==1) { portb.f0=0; portb.f1=1; portb.f2=0; portb.f3=1; } else if(portd.f2==1) { portb.f0=1; portb.f1=0; 5 | Page

Remote Control Car Using PIC

delay_ms(700); portb.f2=1; portb.f3=0;} else if(portd.f3==1) { portb.f2=1; portb.f3=0; delay_ms(700); portb.f0=1; portb.f1=0;} else { portb.f0=0; portb.f1=0; portb.f2=0; portb.f3=0; }

References: 6 | Page

Remote Control Car Using PIC

PIC Microcontroller & Embedded Systems Using Assembly & C for PIC18 By:

Muhammad Ali Mazidi Rolin D. McKinlay Danny Causey

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