Author Topic: Confusion about Servo!  (Read 1494 times)

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Offline reefatTopic starter

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Confusion about Servo!
« on: August 25, 2008, 09:11:49 PM »
I am little confused about the difference between Digital and Analog servos. I read the article about the difference on http://www.societyofrobots.com/actuators_servos.shtml. But I couldn't find anything to distinguish a digital servo from an analog one.

Recently I bought 2 servos from Ebay. Please take a look at http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=310077396962. Is there anyone can tell me whether it is a Digital Servo or not?

Offline airman00

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Re: Confusion about Servo!
« Reply #1 on: August 25, 2008, 09:29:06 PM »
HS-311 is a standard size analog servo

Digital servos are better and more precise but will wind up costing way more than analog
Check out the Roboduino, Arduino-compatible board!


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Offline pomprocker

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Re: Confusion about Servo!
« Reply #2 on: August 25, 2008, 11:27:20 PM »
I was just thinking this same question. How do you interface with a digital servo versus an analog servo?

Offline airman00

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Re: Confusion about Servo!
« Reply #3 on: August 26, 2008, 06:12:54 AM »
same interface and same connector

Here is an example of a standard analog servo  - http://servocity.com/html/hs-475hb_super_pro_bb.html
and heres a digital standard servo-   http://servocity.com/html/hs-5475hb_standard_digital.html

Digital servos refresh at 10 times the rate of analog ones and plus I think with certain hardware you can slow down digital ones.

Truthfully I really doubt you will need digital servos for hobby robotics.

@reefat : tthe answer to your PM - I would use 6V NiMh Battery Pack
Check out the Roboduino, Arduino-compatible board!


Link: http://curiousinventor.com/kits/roboduino

www.Narobo.com

Offline reefatTopic starter

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Re: Confusion about Servo!
« Reply #4 on: August 26, 2008, 09:06:32 PM »
@airman00: Thanks. That helps me a lot to understand.
« Last Edit: August 26, 2008, 09:07:35 PM by reefat »

Offline Admin

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Re: Confusion about Servo!
« Reply #5 on: September 01, 2008, 04:34:55 PM »
[rant]I know its digital when it says Hitec and fries for no reason ;D[/rant]

 


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