pololus calibrate

take the opportunity to greet and make a few questions, make the connection in series with my ammeter to calibrate the pololu, in the Arduino board and have it connected the motor and sensors,
single plate without moving anything more, gives me the amount of 1, 0.17, and you, not that this error is due.
so when I want to move the motors are not moving any more buzz.
I appreciate any help you can give me, thank Annex images of my connection to better detail.
I hope your answers and this time stuck in either electronic or program.
thanks in advance

Where is your ammeter? In series with the motor?

Here is the normal method with volt meter.

-a

Edit: I see your picture now. Measuring current at PSU will not give accurate reading.

Edited 1 time(s). Last edit at 05/17/2015 09:28AM by alan richard.

sorry i am new to this and do not quite understand the material, you'll have a video or photo more precise as to make that measurement. I'd appreciate it, it's my first job in electronics so my experience is very minimal.

The photograph in the link shows a voltage measurement on the pololu.

You adjust this voltage with the potentiometer shown.

The voltage depends on your stepper motor current.

It should be low. It is better to calculate but start around 0.3v and see.

Don't forget, below the pololu there should be jumpers fitted to the circuit board.

All the information should be in the reprap wiki.

-a

this helped me do it, a clear easy walkthrough:

[www.youtube.com]