Line follower robot

Hey guys, today we gonna make a Line following robot. LFR (Line following robot) is basically follow a path of black line on white page or white line on black page. If you want to make a line following robot you must be follow these following step and you also known about the working principle of IR sensor.

Step 1: Component detail
 1. Atmega8 development kit
 2. Two DC motor
 3. Jumper wire (Male to male and female)
 4. Two IR sensor
 We also need following software for development
 1. AVR studio
 2. HID boot flash

Step 2: Assembling process

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Step 3: Coding Part

// Project name : Black_Line_Follower_Robot_for_ATmega16_IBOT_mini_V3 // Designed By : Alok Kumar PAndey /* Program for "Black Line Follower Robot" ______________________________________________________________________________________________________ Connection settings of the Kit Pins of IR sensor is connected with the PortA of the MCU Left Sensor -----> PA4 Right Sensor-----> PA5 Left Motor -----> PB0,PB1 Right Motor -----> PB2,PB3 BOOTLooder Condition Check--->PA0(If 0 bootler section else program execution section of Flash memory) Crystal Ossilator(12MHz)----->XTAL1,XTAL2 VB=Battery Supply VCC=regulated 5V+ Gnd=Ground(0V) */ #define F_CPU 12000000UL // define MCU Clock speed #include <avr/io.h> // include avr header file #include <util/delay.h> // include delay header file int main(void) // main function { DDRA=0b00000000; // declare PortA as a input port connected to the sensors DDRB=0b11111111; // declare PortB as a output port connected to the motors int left_sensor=0, right_sensor=0; while(1) // infinite loop { left_sensor=PINA&0b00010000; // mask PA4 bit of Port A right_sensor=PINA&0b00100000; // mask PA5 bit of Port A if((left_sensor==0b00000000) && (right_sensor==0b00000000)) // if both sensors "off" { PORTB=0b00000000; // stop } if((left_sensor==0b00010000) && (right_sensor==0b00100000)) // if both sensors "on" { PORTB=0b00001001; // move straight } if((left_sensor==0b00000000) && (right_sensor==0b00100000)) // if left sensor off but right sensor on { PORTB=0b00000001; // turn left } if((left_sensor==0b00010000)&(right_sensor==0b00000000)) ////if left sensor on but right sensor off { PORTB=0b00001000; // turn right } } // while closed } // main closed

Open the Hid boot Loader and follow the following path
How to flash in HIDboot loader
Step 4: Ok Guys, we almost done. The project connection are according to the code. The connection description are shown in the Coding part.

Thanking you guys.
If you need any help comment on this.!!!!👇👇👇👇😊