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Author Topic: Stepper motor control with Arduino  (Read 1229 times)

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Offline ben23fTopic starter

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Stepper motor control with Arduino
« on: March 28, 2012, 02:34:21 AM »
Hi im new to this forum and only amateur at robotics but super keen. I was just wondering if its possible to connect a stepper motor directly to the Arduino? or will this overdraw the arduino and kill it? This is for a uni project...

Offline joe61

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Re: Stepper motor control with Arduino
« Reply #1 on: March 28, 2012, 06:33:43 AM »
The processor (ATmega328) can only deliver 40mA per pin output, so yes a stepper motor will fry it. You need a separate controller. Check Pololu or Sparkfun for possibilities.

Joe

Offline ben23fTopic starter

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Re: Stepper motor control with Arduino
« Reply #2 on: March 28, 2012, 10:11:30 PM »
Ok thats what i thought. Do you have an example? i looked on the polulu website, whats the difference between a motor controller and a motor driver?

Offline joe61

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Re: Stepper motor control with Arduino
« Reply #3 on: March 29, 2012, 06:19:15 AM »
Their drivers are pretty much breakout boards. The provide access to pins and you write the driver code yourself. The controllers typically have a higher level interface like ttl serial or RC, and it's easier to interface to them.

 


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