Introduction: Control a Servo Using an Audio Signal

I was looking for a way to control a servo for school project and i couldn't technically "remote control" it.  I decided to go for the simplest way that i could figure out how to control the servo.  (im sure you could do it much simpler using a digital controller but i didn't have one. )

I learned that you literally tell the servo how far to turn by using what is called pulse width modulation.  I explain how i did the first run in the video using my computer.  I eventually made a recording of my pulses and played the signal from my iphone and that made the servo turn at a certain time.

If anyone is interested i can actually do a write up on the project just let me know.

Comments

Mawtees (author)2015-01-03

PLEASE PLEASE PLEASE PLEASE Do an instructable on this, I am making an animatronic band, and I need audio control for the servos. Would it be possible to do with Arduino?

Mawtees (author)2015-01-03

PLEASE PLEASE PLEASE PLEASE Do an instructable on this, I am making an animatronic band, and I need audio control for the servos. Would it be possible to do with Arduino?

Lectric Wizard (author)2012-11-07

What is the name of the software you used? Sounds like you're saying decarda but can't find that in google. Thanks !

I used a program called dakarta, but any sound generator will do.

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Bio: I love designing things and then building them. For me just making a design on a CAD software is half the fun. I love motorcycles ... More »
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