Society of Robots - Robot Forum
Electronics => Electronics => Topic started by: reefat on August 25, 2008, 09:11:49 PM
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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 (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 (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?
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HS-311 is a standard size analog servo
Digital servos are better and more precise but will wind up costing way more than analog
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I was just thinking this same question. How do you interface with a digital servo versus an analog servo?
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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
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@airman00: Thanks. That helps me a lot to understand.
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[rant]I know its digital when it says Hitec and fries for no reason ;D[/rant]