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Author Topic: testing $50 robot servos  (Read 1369 times)

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Offline goatfishTopic starter

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testing $50 robot servos
« on: March 05, 2008, 10:20:30 PM »
is there a way to test that the servos work when you first receive them? the hitec hs-322 hd requires 4.8-6.0 volts

Offline airman00

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Re: testing $50 robot servos
« Reply #1 on: March 05, 2008, 10:26:48 PM »
servos need a pulse to operate

so you could either use a microcontroller to give that pulse or use a 555 timer chip to give the pulse

I would go with microcontroller if you have a programmer for it

do you know the code to send a pulse to the servo?
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Offline goatfishTopic starter

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Re: testing $50 robot servos
« Reply #2 on: March 05, 2008, 10:31:28 PM »
i have only just received the servo today,
is the microcontroller the brains for the $50 robot ???
i would need to know how to connect the servo to the 555
and i know nothing about robot code apart from it has funny symbols lol :D

Offline airman00

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Re: testing $50 robot servos
« Reply #3 on: March 05, 2008, 10:37:45 PM »



here is a link about it , if its not enough search google for "555 timer with servo"

http://hades.mech.northwestern.edu/wiki/index.php/555_Servo_Circuit

A typical servo needs a pulse of 1.0 ms to go all the way to the left, 1.5 ms to center , and 2.0 ms to all the way to the right.

microcontroller is the brains for the 50 dollar robot

learn robot code , because the 555 timer circuit may be a bit too complicated for you

Cheers,
Eric
 

im a bit tired now , time to sleep  ;)
Check out the Roboduino, Arduino-compatible board!


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