Robotic car using 8951 Microcontroller

Robotic Car is a miniature prototype car powered by batteries whose various movements can be control either manually or automatically, or the combination of both.  Here the command is given through keyboard; it would have been better if we used IR remote control or something of that kind rather than using keyboard for commanding. However, by realizing the complexities we have made simple using keyboard.

Block diagram of the project:
Block diagram of the project:

Some photographs of this model:

Robotic car model
Robotic car model
Robotic car model
Robotic car model

Project Description:

Keyboard section:

There are six switches in this section. They are

  1. Turn left.
  2. Turn right.
  3. Stop.
  4. About turn.
  5. Park left.
  6. Park right.

Circuit diagram of keyboard is shown bellow.

Keyboard circuit of the Robotic car
Keyboard circuit of the Robotic car

Car section:

There are many sub sections in this section. They are

Motor:

We are using a 5V dc motor to drive the vehicle. The speed of the vehicle and its strength is controlled by the proper use of pulley. The rear wheel of the vehicle is connected to this motor through a pulley. This motor is meant for moving the vehicle both in forward and backward direction. Microcontroller (8051) controls the forward and backward movement of the vehicle in the following manner:

Circuit diagram of Motor connection
Circuit diagram of Motor connection

Here in the above circuit, T1, T2, T3, T4 are the NPN power transistor (2N3055). A0, A1, A2, A3 are the signals coming from the micro controller. With the specific combination of A0, A1, A2, A3 we can change the direction of rotation of motor as follows:

Case I: When   A0=high; A3=high; & A1=low; A2=low
The motor rotates in clockwise direction

Case II:
When   A0=low; A3=low; & A1=high; A2=high
The motor rotates in anti-clockwise direction

Case III:
When   A0=low; A3=low; A1=low; A2=low
The motor stops the rotation.

Editorial Team
Editorial Team

We are a group of young techies trying to provide the best study material for all Electronic and Computer science students. We are publishing Microcontroller projects, Basic Electronics, Digital Electronics, Computer projects and also c/c++, java programs.

498 thoughts on “Robotic car using 8951 Microcontroller

  1. Hey your project looks cool i would definately want to know more about it . about the procedure to make it the things required etc. pls send me details.

  2. Hello sir,
    I am a B.tech student. i want to make the same project.
    so,kindly send me all the details such as ckt diagram,program,components list and other details…….. it wiil be very kind of you.
    my id. is chandansagar.racerboy@gmail.com

  3. hi…….i like this project and i want to make this project for my robotics turnament..so, plz..send me more details of this project

  4. SIR, CAN YOU HELP ME IN MAKING THE ROBOCAR ??? CAN YOU TELL ME HOW I CAN MAKE IT ??? SPECIALLLY PARTS WHICH REQUIRMENT FOR THIS?? PLEASE SEND ME DETAIL

  5. sir, i am looking for this type of project only, i am interested in doing this project,can u plz send me circuit connection & other hardware requirement of this project?

  6. pllzzzzzzzzzzzzzzzzzzzzzzz send me how to make this car tempreter sensitiveeeeeeeeeeeeeeeeeeeeeeeeeeee

    plllllllllllllllllllllzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz send vary soon very urgentttttttttttttttttttttttttttttttt

  7. Robotic Car is a miniature prototype car powered by batteries whose various movements can be control either manually or automatically, or the combination of both. Here the command is given through keyboard; it would have been better if we used IR remote control or something of that kind rather than using keyboard for commanding. However, by realizing the complexities we have made simple using keyboard.
    Block diagram of the project:

    Block diagram of the project:

    Some photographs of this model:
    Robotic car model

    Robotic car model
    Robotic car model

    Robotic car model

    Project Description:

    Keyboard section:

    There are six switches in this section. They are

    1. Turn left.
    2. Turn right.
    3. Stop.
    4. About turn.
    5. Park left.
    6. Park right.

    Circuit diagram of keyboard is shown bellow.
    Keyboard circuit of the Robotic car

    Keyboard circuit of the Robotic car

    Car section:

    There are many sub sections in this section. They are

    Motor:

    We are using a 5V dc motor to drive the vehicle. The speed of the vehicle and its strength is controlled by the proper use of pulley. The rear wheel of the vehicle is connected to this motor through a pulley. This motor is meant for moving the vehicle both in forward and backward direction. Microcontroller (8051) controls the forward and backward movement of the vehicle in the following manner:
    Circuit diagram of Motor connection

    Circuit diagram of Motor connection

    Here in the above circuit, T1, T2, T3, T4 are the NPN power transistor (2N3055). A0, A1, A2, A3 are the signals coming from the micro controller. With the specific combination of A0, A1, A2, A3 we can change the direction of rotation of motor as follows:

    Case I: When A0=high; A3=high; & A1=low; A2=low
    The motor rotates in clockwise direction

    Case II: When A0=low; A3=low; & A1=high; A2=high
    The motor rotates in anti-clockwise direction

    Case III: When A0=low; A3=low; A1=low; A2=low
    The motor stops the rotation.

  8. hi i like the project which u have post n i like to do this project so can u pls send me all details regarding this project . it will too helpful for me so pls do send details….n pls send it as soon as possible

  9. hey dear i love ur project….plz send me the details procedure and equipments which is require for this project…plz send those information to my email address…..

  10. helooooo sir gd evening ds is srikanth plz send me the details of robotic car & how to prepared ,how to operated plz send me the details i m waiting for u r reply sir , thankq sir

  11. hai………sir………….
    i want to do this project please send me the programming code,circuit diagram ,component details for this project………..

  12. i final year student of b.tech n m working on this project.can u mail me all the required detailsss.plz mail me its urgent

  13. plzzzzzzzzzzzzz send me ful details of the projects and programing of 8051 microcontroller

  14. please can u send working of the project,circuit diagram .components.source code,pcb,etc plzzzzzz… send as soon as possible.

  15. I LIKE UR PROJECT”MOVEMENT OF CAR USING GSM TECH. ”
    WOULD U PLZ SENT ME THE DETAILS OF THE THIS PROJECT

  16. i want to do this project please send me the programming code,circuit diagram ,component details for this project……….

  17. The project is really very nice so can u plz send me its details on my email……..

  18. I want to do this project. plz sir give me the details ckt diagram of all section,programming,coding,data sheet.
    & some of your experience ‘how to build it?’
    please sir give me this all things via email on my email id…………

  19. please mail me the circuit diagram along with the components specification used in completion of this project

  20. hello sir,
    pppppppplllllllllllllllllllllzzzzzzzzzzzzzzzzz
    send me the list of all the equipments used n the circuit diagrams as soon as possible i will b very thankful for that, ireally like ur project.

  21. respected sir i wanna to complete a project on rc helicopter plz send me detail…… thank u..

  22. plzz sir can u mail me d c program code used to burn in d 8051 microcontroller to control the movements of the car..i wl be really thankful to u!!!plzz mail me code in my mal id!!! plzz help me sir !!!

  23. Hello sir..i want the programming code of robotic car using 8951 microcontroller…its urgent..and all the block diagram

  24. hey there its an awesome project could u plz fetch me the complete procedure right frm the beginning till the end also with the components required…

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