Arduino Bluetooth Controled RC Car

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

Step 1: Materials

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:

https://play.google.com/store/apps/details?id=com.buncaloc.carbluetoothrc&hl=en

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:

https://www.instructables.com/member/Srpska+Nauka/

Comments

[BillB297]

the car doesn't work and the scheme is wrong

[Rohan Pillai]

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

[Mahil Fernando]

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

[rohan123rohan]

i have also removed rx,tx and upload code .but my car is not working.

[rohan123rohan]

i have done everything.but my car is not working.

[jonojono1]

hi i have followed you instructions to build car i have downloaded code which compiles ok it uploads ok, i want to control it by android phone bluetooth i have downloaded the app ok it pairs ok states car is conected ok but on pressing directions nothing happens i do not know what i am doing wrong i am new to arduino so my codeing knowledge is sketchy please help as its driving me nuts

[BeyhanÇ]

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?

[TheSticky Studio]

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

[kaab ahmed]

finished , but car make no response
help]']

[kaab ahmed]

Finished ,but no response
help me fast

[shibil mohammed]

thankzz...this is very helpfull...

[TomasN29]

Can you send this project pdf format to [e-mail]?

[Himnish Pritmani]

Same here can u send it to [e-mail] ? thanks in advance :)

[Artwork53]

can i use the arduino bluetooth rc car app?

[fraz sultan]

owsum site

[CarlosM175]

qual o link do site?

[CarlosM175]

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

[zhixuan]

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

[zhixuan]

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.

[command123]

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