First project RC car won't move

Projects General Guidance
1

This is my first Arduino project as my school lent me one to do something with.

I followed this guide to create the car:

Everything works fine because if I lift the car in the air the motors spin correctly. Only when I put the car on the ground do the motor do nothing, they make a little sound but that's it.

All I can think is that it is a problem with: Grip on the wheels; Too weak motors; Not good enough of a battery. I am using a procell 9v battery if that is any use.

Could anyone give me any advice on this?

2

We'll need a wiring schematic. You're probably trying to power the motor through the Arduino which won't work.

3

That's likely your problem. Those 9V batteries don't provide very much current so they can't make much power. They're way underpowered for motors trying to move anything. If you use 4 or 6 AA batteries or even AAA batteries things will work much better.

4

The wiring schematic is on step 4 of the site I linked.

I will try using the 6 AA batteries thanks

(not sure how to quote things on mobile right now or link an image from the site)

5

On pc at least, highlight the text and a QUOTE box pops up above the text. Also, you can copy paste images inline.

Also, please take a look at getting the best out of this forum. Things like putting the wiring diagram directly in the post will help you get better answers faster.

6

Thanks, I'll try to use PC or figure out how to do it on mobile if I need to post on the forum again.

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7

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