Ben Harel

I tried D2, still nothing.

Hi Ben,

 

Looking at the hardware:

There is no power supply shown in the diagram you linked to.

 

Do you have a Vin supply going to the barrel connector of the netduino (or directly onto the bread board)?

or are you powering the Netduino from 5V USB?

 

If you only have a 5V input to the Netduino, then I am guessing your motors don't have any power.

 

The motor driver needs a hefty power supply - I have found its a bad idea to draw power for motors through the Netduino's PCB. I also found it was a bad idea even to share a power supply (unexplained resets).

 

I now prefer to supply motors with a separate battery pack to the supply for the logic.

In my own buggy I use 6xAA for the motor driver to use, and a separate USB emergency phone charger battery to give 5V for the Netduino.

 

Looking at the software:

Try something really simple!

Forget PWM, just setup the GPIO as normal ON/OFF outputs and try turning the motors ON, then try reversing them.

This will prove the circuitry works.

Then try replacing the GPIO ON/OFF with PWM.

 

Hope this helps - Paul

Hi.

The left engine for some reason does not work, heres the code:

And how do I reverse the motors? Reversing the cables?

oh I got it

Yes, I connected a power supply to the Netduino.

About the software, I'll try that and report back. Thank you!

EDIT

Wait!

How do I set up the PWM? I gave it 1000 as frequency, is that good?

Well.. nothing. After I complete the flashing, I try to click on Device Capabilities, and I get an error:

<a target='_blank' title='ImageShack - Image And Video Hosting' href='http://imageshack.us...21/errorgy.png/'><img src='http://img21.imagesh...311/errorgy.png' border='0'/></a><br>Uploaded with <a target='_blank' href='http://imageshack.us'>ImageShack.us</a>

Plus, I noticed that at the very end of the flashing, in the step by step tutorial the textbox had:

chk signature

signature pass.

I had

chk sig

and thats it.