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Author Topic: Need help with servos  (Read 1683 times)

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Offline TVATopic starter

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Need help with servos
« on: October 08, 2008, 01:43:14 AM »
I have 2 cheap servos that i got from an old RC toy. Problem is that they only have two wires. That means that they are just simple DC motors geared down and unmodified to run 360. I want to use them to drive the wheels of the 50$ robot. What do i have to do to use them?

Offline ArcMan

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Re: Need help with servos
« Reply #1 on: October 08, 2008, 06:32:29 PM »
You'll have to drive them with a motor driver then - like the L293D chip.  Check out this site and the internet to learn about them.

Offline szhang

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Re: Need help with servos
« Reply #2 on: October 08, 2008, 11:02:33 PM »
you also need to supply a PWM control signal to vary the speed.

Offline Admin

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Re: Need help with servos
« Reply #3 on: October 10, 2008, 05:14:52 AM »
This question has been asked a billion times. As such, I added it to the FAQ:
http://www.societyofrobots.com/robot_faq.shtml#servo_vs_motor

 


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