# Remote Controlled DC Motor for Toy Car Circuit Diagram

This is a simple hobby circuit of a remote controlled toy car. The main component used here is the IR sensor circuit consisting of TSOP. Using a TSOP IR receiver we can start and stop the DC motor vehicle. However this circuit has a small disadvantage that it can’t control the speed of DC car motor, rather it ON and OFF the small dc motors. Thus it is suitable for electronics beginners only.Once it is ON, the motor runs with a constant speed. No speed control circuits are discussed here. The advanced version of this circuit with PWM speed controller will be posted soon. You must need a regulated power supply of 5 volt to do this one because TSOP requires 5v for its operation. Below is the circuit diagram and working of remote controlled dc motor for car using T sop infrared detector circuit.
Note: TSOP voltage should not exceed 5V.

## Circuit diagram of remote motor controller

Click on the circuit for enlarged view.

## Components Required

1. 9V Battery
2. 7805 voltage regulator
4. IC 555
5. IC 7474
6. BC 548 Diode
7. 1N4007
8. Resistors (220KΩ, 100Ω)
9. Capacitor (1μF)
10. DC Motor

## Circuit Working

• Maximum voltage of TSOP and 7474 is 5v. So we are using a 7805 voltage regulator IC which provides 5V output.
• The output of TSOP is always 5V, and the output will be zero when IR rays strike on it.
• When the voltage at the 2nd pin goes below 1/3Vcc, output switches to high (5V) for the time interval T=1.1RC. After this time interval output returns to 0V.
• 7474 is a D-flip flop. It is wired in Toggle mode. i.e Q’ to D input. 555 is used as clock generator here.
• When it gets a clock pulse output goes high and remains in that state till the next pulse.
• On receiving the next pulse output goes low and remain in that state till the next pulse.
• This process will continue. Output of 7474 is fed to base terminal of BC 548/BC 187.
• BC 548 is a driver transistor, when its base voltage is high current will flow through the load.
• Here DC motor is the load and it will rotate only when the base voltage is high.
• Diode Df is a free wheeling diode used to dissipate the stored energy in the inductor load.

## Video demonstration

As per the request from some of our readers I have recorded a video showing working of the circuit. Watch it and enjoy.

## 49 thoughts on “Remote Controlled DC Motor for Toy Car Circuit Diagram”

1. sir,after giving connections my motor is not running.could us how me the practical circuit ,please

• Hi Ishtiaq,

Maybe there’s some error with your connection or your components might not be working. Check that out. Soon we will come up with a video of working for you. Keep visiting…

2. Anonymous says:

circuit for remote control ?????

Hi,
You can use any IR remote control. We will publish a remote control circuit soon.

• shali says:

I need one of best circuit for my car design which is nearly 15 kgs.i need a speed of 100kmph can u suggest me a circuit for this one.mail to my email.ID SHALI.M7495@GMAIL.COM

3. sir we are waiting for circuit of remote control as well as for the working of this circuit video…

• Hi Ishtiaq,

As per your request, we have published the circuit for remote control. Please visit IR transmitter and receiver circuit

We are proceeding with the work video demonstration. Keep visiting and don’t forget to follow us on G+ and facebook.

• Jaseem vp says:

Hey,
No more waiting brother, video has been uploaded.

• kanwal says:

thankyou so much sir

4. SANDIP GORAI says:

Dear sir, i want to make remot control dc motor circuit , but i have a question-where the circuit of remote controler of swich on /off, how to play this circuit?
pls give me answres. thank u.

• Jaseem vp says:

Hi SANDIP GORAI,
This is the circuit of receiver section. You can use any remote controller for this, for example TV remote, DVD remote etc.
Let me know if you have further doubts.

5. Mital patel says:

sir you have make this circuit ….but which frequency you set?…and you have remote circuit……………please specify……………………..

• Yaseen says:

Hi Mital patel
1. Set the frequency that specified the TSOP you are using.
2. You can use any remote.

6. Alix says:

Hey there, You’ve done an incredible job. I will certainly digg it and personally
recommejd to my friends. I am confident they will be benefited from this website.

7. Abdullah Zia says:

Sir,
You have mentioned BC 548 Diode in the components list but you use BC 187 in the circuit.

• Khaleel says:

Hi Abdullah
You can use either of them.

• Abdullah Zia says:

8. Parth says:

Sir, a few months ago i bough a remot control car. Now i have only its remot. how can i make car circuit? on body of remot a lable shown 40mhz . Plz show a full circuit diagram.

9. Chinmesh Manjrekar says:

Sir i built the circuit ,, but it doesn’t seems to be working ,, im using my tv remote ,,,,

besides the circuit shown in the video looks completely different from the one shown in the schematic …. help

here’s the pic of my circuit …. http://i.imgur.com/zIs4uq9.jpg

10. Ravi Kumar says:

Hello sir I saw your demo on youtube also. Sir you have to give remote circuit too. Because we have to practically. So please provide us..
thanq

• Khaleel says:

Hi Ravi,
Link to the DIY IR remote controller circuit is given above as reply to one of the comments.

11. Amit Sahani says:

sir which model of DC motor are used in remote control car..

12. Dig B says:

Can I use BC547 instead of BC548

13. James Jones says:

Hi great job

it says in the description… The advanced version of this circuit with PWM speed controller will be posted soon. has this yet to be done?

14. amir says:

sir ….plz help me…how we make speed controler of dc motor with receiver and controler

15. inayat says:

sir I want some help.I have circut diagram can u plz convert to pcb layout

16. faroqhossin says:

Dear
Use for any remote.but not ir remote?

17. Akshay says:

Sir, you have made nice circuit and I also want to copy it but I need two things
1. an approximate cost for whole project and ;
2. circuit for its remote.

18. dev says:

What about 1n4007 which u have listed in the above list please specify it

19. KEN says:

Hi admin where could i get those materials for this project??

20. abby says:

hullo …I have a receiver circuit board for a toy car ….but I can’t get to understand some of its parts because all its wires are broken …..will you please assist me with the interpretation of the signs and symbols used in the electrical world ..and exppain to me how the circuit z working …thank you ..my email is mugumeabby@gmail.com

21. chanuka says:

Sir,what is the other suitable ic for that 7474ic.I cant find that 7474ic.

22. hi sir,how could this materials be found

23. Salman says:

hello sir…
My self Salman I dont know more about it but I’m very interested about it I can make remote control dc moter circuit with help of your given circuit digram and tutorial but sir I have some issue I can’t get how to make remote circut for your given circuit digram so pleaseeeeeee plzzzzzzzzzz plzzzzzzzzzzzz plzzzzzzzz sir help me
I hope you will rectangle my problem soon

24. azij khan says:

plz help me fraind i work for remont control car but my car remote rang low plz help and my car speed low fraind some advice my car speed super fast plz help

25. ajay kumar says:

sir i am use my tv&airtel digitel remote but the is not working please give me solution

26. sunny shandilya says:

Hello Admin, can plz post schematics and pcb layout in detail of transmitter and receiver to control 4 dc motors simultaneously.

27. gowtham says:

i want one circuit pls help me sir , the circuit is two wheeler safty use.

28. Kaustav says:

In video there is a relay but in the circuit diagram there isn’t. So which is correct diagram?

29. Sreekanth kr says:

Hey sir,
I’m first time see BC 548 diodes ! Its a true?
Could u please explain this circuit ?

30. saifullah says:

i like this project.

31. Ujjwal kr says:

hello
sir i respect for you how to make a wireless remote control toy car plzzzzzzz plzzzzzzzzz plzzzzzzzzzzz help me sir plzzz plzz plzz plzzz

32. Onec2 says:

Hi…..i am interested with dis circuit ,motor,remote,555,9volts……….IR….but can you give me a circuit diagram for sending & recieve through RF……..

33. Comelez says:

Sir..

i want to control my motor bt only when i press the button .
and then it must be off .

34. Noel says:

Hi.
You say in the article “The advanced version of this circuit with PWM speed controller will be posted soon.” Can you say when this will be or has it already been done, if so where can I find it? I am thinking of building a remote control volume changer gizmo to use on my old stereo Hi-Fi amp. So I need the motor to move slowly in each direction only for as long as the appropriate volume-up volume-down button on the remote is held down.

Unfortunately I can’t see a date anywhere on these pages so I don’t know how old this project is. Thank you.

35. ali njuguna says:

hey,can any transistor be used as a switch or is it a specific type?

36. Mic says:

Hi i,am looking for a circuit diagram for childs ride in car , model XG999-6 wires have been pulled out from forward/back switch and rc/manual switch can you help please , a picture or diagram would be great , thanks Mic.

37. anjana says:

plz give me its simulink model on matlab.