Arduino Bluetooth RC Car W/ Electronic Braking System

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Introduction: Arduino Bluetooth RC Car W/ Electronic Braking System

This is how to make an RC car for around 40$(27$ w/ uno clone).

Step 1: Parts

1. An Arduino Uno(from Amazon), Micro, Mega, Duo, or Leonardo.($5.99 Uno clone)

2. Robot platform.

3. L298n Motor driver.

4. Hc-06 bluetooth module.

5. 9v battery.

6. 9v battery holder.

7.Android device.

Software:

Arduino IDE

Arduino Bluetooth RC Car

Step 2: Programing

Here is the code:

Step 3: App

The app is simple, UP, DOWN, RIGHT, LEFT, UPRIGHT etc. ,also a slider. Arduino Bluetooth RC Car website.

Requires Android

2.3.3 and up.

Step 4: Wiring

Wire the robot as above, then it should be ready.

Thank you for reading.

Have fun!

11 People Made This Project!

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Tips

2 Questions

HI there, cool car, it works fine, but if i unplug the USB cable i dont have any bluetooth. could it be that i have to less power ? if the UNO has contact with the computer bluetooth has been working. strange.
and question number two, can i add an ultrasoon sensor with it ?

please ltell me how

greetings Mario

does it have to be an android device, so am i able to use an iphone?

118 Comments

Are u sure it will works with that 9V battery ? and how much ampere does it supply ?

2 replies

It runs for around 15 minutes, and the batteries can supply 300mah(nimh). Li-ion batteries voltage is to low, as it cuts out at about 7.5 volts.

I use two li-ion 4.2 6000mah plus a 9v battery. I power the arduino with the 9v and the motor shield with the 4.2v 6000mah batteries and no problems.actualy the arduino can handle 12v.

sorry but my l298n can't move the dc motors. what I have to do?

2 replies

Separate power supply.

Well can you see if there is a wire lose?

I am having trouble getting the car to respond with the app. the app says connected but nothing works. I have uploaded v 4.0 code to aurdino. plz help!

1 reply

Disconnect the blutooth then download the program

Hi!

Can you help me please? I have a problem with the overturning of the program. It's write:

avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x00

So I can't upload, it's a big problem.

Thanks for your help!

PS: Excuse me for the grammar, I'm french and my level englsih is low.

PS: Congratulations for this project, is fantastic ;)

6 replies

Did u solve this problem? Maybe u remember how?

No sorry, I am always looking for the solution

Yes

Program get into arduino but car doesnt work :/
I download app on the phone but nothing happen

Oh for me this is the same, the robot not function :/

The wires of mounting must not be plugged in when you put the program on the Arduino board. I think that was the solution to my problem.

The wires must not be plugged in when you put the program on the Arduino board. For me it was that.

Tell me if it your problem :)

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x0f

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x0f

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x0f

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x0f

avrdude: stk500_recv(): programmer is not responding

Problem z wgrywaniem na płytkę. Sprawdź http://www.arduino.cc/en/Guide/Troubleshooting#up... w poszukiwaniu sugestii.

avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x0f

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x0f

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x0f

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x0f

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x0f

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x0f

I dont get it can u help me? I used ur code

okadar baktım tükenmiş.bitmiş bi yardım edermisiniz

robot pilatformunu nerden adınız

good day! in your diagram, the rx pin is not connected to the tx of the arduino? will it work or it is just a mistake?

For an arduino bt car project, u have made it quite simplistic but I am still having some problem with the transmission as everything is connected event the bluetooth but when i use the app to control the arduino car (for example forward) it does not work, i even tried the serial monitor but the motors do not move/turn. Thanks a lot.