4 Oct Here is a simple line following robot circuit designed using ATmega8 Microcontroller. It can be used in industrial and defense applications. You can try declaring sensor as volatile: volatile uint8_t sensor;. 4 Aug Hi all, I am new here and about to make a debut in robotics with a simple line follower robot. I have chose AVR ATmega8 as my microcontroller.

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BTW after a long philosophy class here is the quick solution that qtmega8 are every fool is looking is here! In case a line is NOT found we below any sensor we used value we got last time. Sign up using Facebook. I know it is still incomplete.

Is programming an ATmega8 simple as that? The code is as follows. Also put a 0. Uusing manideep reddy allala – February 20, 9: By Avinash – December 2, 9: Then we will mail you the library files. By Jalaj – February 6, By Rajesh Rajan – January 4, And write comment in proper english only! Line Follower using Atmega8 Community.

Thanks for explaining it so nicely. I meant main board schematic although outer details are good and inner details are not clearly legible. As a beginner into robotics, I should thank you for encouraging people like us…. By Avinash – February 8, Can u help me tweaking it to detect perpendicular cuts in the track and to follow a white line on a black background rather than black line on a white background?? You can save lots of time and pay more attention in the program part that is more important.


I am a begginer I trusted your site so started this project. HI, i am a newbie here, and is making a new robo, a LFR, but cant make it turn. By nannu – October 21, 2: More Posts – Website Follow Me: Hi sir, Its not working for me. By DIbyaranjan – July 7, A new project is created as described in above tutorial and configured then the library files LED,Motor and ADC needed to be added to the project. Bikash see the DVD you should have received with the kit.

Its called a by pass capacitor, and why the hell you are telling it isolated? I am trying to build a Line follower robot using atmega8 which can park itself when both the infrared sensors detect black. I know you will surely help me.

By vijay – November 3, 2: By inertia45 – August 26, 5: I want to ask why do you not include the TIME factor when taking integral and derivative? Avinash, I happened to see this tutorial.

avr – Line follower robot using atmega8 – Stack Overflow

Are they really falling below the active low voltage when “dark”? By Dibyaranjan – July 6, 8: Sir, can i have the code for adc? But since PIND is already defined as volatile “under the hood”, isn’t that sufficient for the compiler to suppress assumptions regarding the value of PIND and thus not optimize the assignment to sensor? Please try to under stand the purpose of anything before cementing!


But the problem is that our competitors are using a rpm motor…So we wanted to know roboh if you are having the same kit everything same but supporting a rpm motor…If its available with you please contact asap….

By salini – January 13, Avinash Avinash Gupta is solely focused on free and high quality tutorial to make learning embedded system fun!

I don’t see how this should accomplish anything. What should I do? In the usinb first thing we do is to read the sensor using the ReadSensors we get a value between 1 to 5 as follows. This type of robot is run over a white surface which has an arbitrary path drawn over it by using back paint. Afsal, Consult documentation available at Atmels website.

Line Following Robot using AVR ATmega8

Also, you may want to only check relevant pins, not the whole port. We are here to help! It is working great on smooth turn even at full rpm but facing difficulty in sharp 90 degree turn. By afsal – March 1, 6: I will use a bright red LED robor photoresistors to make the sensor.

By Priya – February 10, Can you please make the program?