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Topic: Control 18 Servos (Read 701 times) previous topic - next topic

metRo_

Hi,

Can i use that http://focus.ti.com/lit/ds/symlink/tlc5947.pdf with arduino duelminove to control 18 servo?

macegr

No, it has an internal oscillator instead of the GSCLK on the TLC5940.
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metRo_

And can you explain why that feature is important? What are the diference between gsclk and sclk?

mem

#3
Jul 19, 2009, 09:16 pm Last Edit: Jul 19, 2009, 09:19 pm by mem Reason: 1
The internal clock frequency of that part cannot be changed and its way too fast to be used to drive a servo.

Servos require a very specific range of control pulses and that chip is not capable of providing them.

metRo_


Ran Talbott

I haven't tried this chip,  but it's supposed to run 16 servos off a serial or I2C link.

Ran

virtualmix

Hi metRo_
What chip did you end up using?
I also would like to control 18 servos from an Arduino but I'm not sure what to use...

Thank you.

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