6 years ago

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

Reply 6 years ago on Introduction

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.

alullmer

Reply 4 years ago

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.

조성현

1 year ago

프로그램 다운로드 어떻게하나요? 확장자가...

mariovanwetten

Question 4 years ago

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

shreepaperudyog.satara

Answer 2 years ago

if arduino uno is no electricity then how is on bluetooth module

MaybeTrixx

Question 4 years ago on Introduction

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

jekob

5 years ago

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

alullmer

Reply 4 years ago

Separate power supply.

owensoo

Reply 5 years ago

Well can you see if there is a wire lose?

fossoknu000

5 years ago

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!

alullmer

Reply 4 years ago

Disconnect the blutooth then download the program

Auroore

5 years ago

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 ;)

TomekR5

Reply 4 years ago

Did u solve this problem? Maybe u remember how?

Auroore

Reply 4 years ago

No sorry, I am always looking for the solution

TomekR5

Reply 4 years ago

Yes

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

Auroore

Reply 4 years ago

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

Auroore

Reply 4 years ago

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.

Auroore

Reply 4 years ago

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 :)

TomekR5

4 years ago