Servo motor

Community General Discussions
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1

How to control a servo motor (2) by just twisting or turning the other servo motor (1) or potentiometer using hand?

The servo motor 2 will follow the movements of the servo motor 1 or the potentiometer.

Not necessary to use a servo motor for the servo motor 1, just any solution that would perform what is shown in this video (http://www.youtube.com/watch?v=zZwnyZPkylk&feature=related).

Thanks.

2

hi, there are a few ways of

hi, there are a few ways of doing this.

You can get either an arduino, or picaxe board, and doing it mostly through software.

 

 Or use a 555 timer and some other components:

http://www.hvlabs.com/555servo.html

 

All of these using a potentiometer, for using a servo you would need to ‘‘hack’’ it.

3

Hello

Hi.

So the 2.7k ohm potentiometer X1 is used to control the movement for the servo motor?

Thanks.

4

Hi Chin,You can adjust the

Hi Chin,

You can adjust the pulse width (1 - 2 ms) with the potentiometer and therefore the servo position. The length of the pulse determines how far the motor turns. For instance, a 1.5 ms pulse will make the motor turn to the neutral position (90°).

5

Exactly! i never tried any

Exactly! i never tried any of these circuits, even though i really want to, but ‘‘servo testers’’ are basically this… so it should work fine.

 

Most servos use 1 to 2ms pulses anyway, some go up to 2.2 or 2.5ms, so if you don’t get full servo travel, it might need some tweaking.

6

picaxe

main:

readadc pinnumber,b1

servo pinnumber,b1

pause a little bit

goto main

 

That’s it, 2 connections and 4 lines of code, done.