“JavaBot” LINE FOLLOWER ROBOT from Java, Indonesia

I have designed it just for fun and it’s my 1st Line Follower Robot :mrgreen: . First I want to know how the line sensor work.

Finally I spent only USD $ 6-7  to build the robot.

There is no MicroController so we do not need to programm. I just used comparator IC using LM339, two H-bridge sensor using eight transistors FCS9013, and four transistors, FSC 9012. For the sensor you can use LED and LDR as the light receiver. I changed the LDR sensor to IR sensor.

I built this robot using only the analog comparator and IR sensor, no microcontroller. This is smart idea and very cheap approach.

You can download Click this Download PCB FILE (ExpressPCB file)

Figure 1: main layout and sensor layout.
Figure 1: Schematic main layout and sensor layout.

Components:

R1, R7, R13, R14, R15, R16 – 330 1/4W +/-1%
R2, R3, R4, R5, R6, R8, R9, R10, R11, R12 – 10K 1/4W +/-1%
R17, R18, R19, R20 – 150 1/4W +/-1%
VR1, VR2 – 20K-50K
Led1, Led3 – LED(red) 3mm Led
Led2, Led4 – LED(green) 3mm Led
Optocoupler – 2 piece

Q1, Q2, Q3, Q4, Q5, Q8, Q9, Q12 – FSC 9013
Q6, Q7, Q10, Q11 – FCS 9012

U1 – LM 339
Battery 9 volt – 1 piece
Motor DVD dc 5Volt – 2 pieces
Tank toys for mechanic and wheel – 2 pieces

Figure2: JavaBot, my first line follower robot without the microcontroller.
Figure2: JavaBot, my first line follower robot without the microcontroller.

There are two line styles, white line on the black floor and black line on the white floor.

If you use black line on the white floor,  you can set the robot if the Right-Sensor is on the dark side or black line and Left-Sensor is on the floor it will go to forward (by swap polarity of the motor). If the Right-Sensor is on the floor and Left-Sensor is on the black line it will go to backward.

 

That’s it… you can add wireless cam for to see how the robot walk… ^_^ Thank You

Figure3: Attach the wireless video camera to the JavaBot.
Figure3: Attach the wireless video camera to the JavaBot.

This project by Tahan Prahara,

Email: prahara_satria@yahoo.co.id

Tahan Prahara

73 thoughts on ““JavaBot” LINE FOLLOWER ROBOT from Java, Indonesia

  1. can u give full details of this project.Because i give it name for my final year project.

  2. hi
    i’m very much interested in doin this project
    so kindly can you give the full details of the project including circuit diagram and pcb layout
    really this is very interesting

    agugrg@gmail.com

  3. hi
    i’m very much interested in doin this project
    so kindly can you give the full details of the project including circuit diagram and pcb layout
    really this is very interesting.

  4. hi . this s really cool . can u pl send the project details especially the pcb layout to my mail id ?

  5. hey it very interesting.
    could u plz help me by sending d detail of d given robo i wil very thank ful to u. to ma email id:

  6. i am very interested in your project please give the details to do this project

  7. Je suis très intéressé par votre projet s’il vous plaît donner les détails pour faire de ce proje

  8. hello sir
    project is very interesting.
    if you don’t mind, plz send me project detail and pcb layout.

  9. hiiiiiiii plz can u send me the full details of how u made it as fast as possible without usin the micro controller in details plzzzz and also how to integrate the camrea with it so dat i can view it wirelessly k thank you and fast plzzzzz

  10. hi
    i’m very much interested in doin this project
    so kindly can you give the full details of the project including circuit diagram and pcb layout
    really this is very interesting

  11. hi
    i am very much interested in doing this project
    so kindly can you give the full details of the project including circuit diagram and pcb layout
    really this is very interesting.
    mail;ramprathap7@gmail.com

  12. hi sir
    i am very much interested on your project i want do that project
    in collage association day please please send the project with full details
    (ckt diagram parts required and stripboard layout) please send
    mail:ramprathap7@gmail.com

  13. i like it so much plz tel me its ckt. diagram i m b.tech final year student i want make this project

  14. I am very interested in your project
    please send me full details to do this project along with ckt dia and source code also

  15. hi, sir ur project is very cool plz send me ful detail in ur project @project description
    plzzzzzzzzzzzzzzzzzzzzzzzzz
    mail id:vidyadeepak.yamarthi@gmail.com

  16. this is really interesting.i would like to do this as my project.so kindly send me the circuit diagram and complete details.

  17. hi there ,
    this is a great idea
    and i think that i will chose it for my final project

    so plz can u provide me with some information like circuit diagram, source codes, components required to build the ckt and theory. plz send me the info on my e-mail

    bo-osa@live.com

    plz contact me as soon as possible

  18. Dear All, I am sory never reply yours question, I am stop developing on electrical project. I am starting now. I will update it soon Thanks you

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