Arduino Bluetooth Controled RC Car





Introduction: Arduino Bluetooth Controled RC Car

About: I just like to make staf xD If you want to contact me just send me massage and I will give you my email.

In this instructable I am going to show you how to make Bluetooth controled car with 2 DC motors.

Step 1: Materials


1.2x DC motor

2.L298N (motor controler)

3.Arduino Uno (or clone)

4.HC-05 (bluetooth module)

Step 2: Chassis Editing

I cut off Middle plastic part and replaced it with wood, then I added 4x1.5V battery pack in the middle of it.

Step 3: Wiring Scheme

Connect one motor to the OUT1 and OUT2 pins of L298N, connect second to the OUT3 and OUT4 pins.

Connect positive wire of batteries to +12V pin and negative to the GND of L298N, then connect same GND to GND of arduino.

Pins of HC-05 are conected to arduino like this: GND to GND; VCC to 5V; RX to TX and TX to RX.

Pins of arduino 8,9,10,11 are connected to IN1,IN2,IN3,IN4 of L298N.

Step 4: Connecting

Connect wites like in prevous step.

Step 5: Upload Code to Arduino

Connect your PC to Arduino and upload this code.

Step 6: Download App

You can download app here:

Step 7: App

Turn on your car.

Open app, turn bluetooth on and connect it to the HC-05.

Step 8: Done

Special thanks to "Srpska Nauka", he helped me build this car.

You can check his acaunt here:

2 People Made This Project!


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Please be positive and constructive.


3 Questions

My car just turns arount itself, doesn't go forward. How can I solve it? And after some time the app on my phone gets errors. I didn't use servo motor, you didn't list it also but in the codes there is servo why?

Hi. Where do you connect the servo motor for steering in the motor controller or the arduino uno? Pls help me!

finished , but car make no response


Finished ,but no response
help me fast

i bought all these items,

i wired according to given...

i uploaded the code...

i connected hc05 with my tab...

but the car make no respones...i is remained stationary

1 reply

when u upload the code remove rx and tx cables and plug when u done upload the code

Can you send this project pdf format to

1 reply

Same here can u send it to ? thanks in advance :)

can i use the arduino bluetooth rc car app?

no programa "APK" quais sao as portas do arduino para as luzes da frente e de tras?

@Dzefri I met problems while uploading the files.. Please help me to solve it..


Hi everyone, I am beginner to arduino. I don't know how the black wire from the battery can be separated into two. I don't know how to see the wiring schematic. anyone who know please reply me . thank you very much.

can you change the code for a 2wd car.i mean there will be not left-right will turn right-left by using two motor same time

premkumawat i hope u can help me

pls pls pls prem help me

anybody pls pls pls help to built this

really its working and a nice project