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16  Forum 2005-2010 (read only) / Interfacing / Re: Servo won't stop turning... on: August 22, 2010, 01:07:30 pm
Andrew, what you've posted is very interesting.
I've examined the gears, and yes, it has been modified. The potentiometerfloats under one of the gears, and another gear had a mechanical stop that has been cut.
So I think this discussion is over!

Thank you to everyone that has helped.  smiley-wink
17  Forum 2005-2010 (read only) / Interfacing / Re: Servo won't stop turning... on: August 22, 2010, 12:53:18 pm
When you say "modified", what are you talking about?
18  Forum 2005-2010 (read only) / Interfacing / Re: Servo won't stop turning... on: August 22, 2010, 12:36:11 pm
No, it comes from here: http://www.smallrobot.com/
I won it ten years ago at a programming contest. Servos were controlling its wheels.
19  Forum 2005-2010 (read only) / Interfacing / Re: Servo won't stop turning... on: August 22, 2010, 12:27:16 pm
You can find it here, but i'm not shure this page will help. it's the GWS S03N:
http://www.newpower-modelisme.fr/modelisme-gws-25-114-23.html?PHPSESSID=fe48a77
20  Forum 2005-2010 (read only) / Interfacing / Re: Servo won't stop turning... on: August 22, 2010, 12:21:30 pm
Yep:
With 180 value, it does ~2 turns CCW, then ~turns CW and so on. I tried to change this value to 90: it goes for 1 turn CW, stops for a few ms, goes for 1 turn CW again and so on.
21  Forum 2005-2010 (read only) / Interfacing / Re: Servo won't stop turning... on: August 22, 2010, 12:15:44 pm
Yep, but it's not the case smiley-sad
22  Forum 2005-2010 (read only) / Interfacing / Re: Servo won't stop turning... on: August 22, 2010, 11:57:56 am
@bld: tried supplying it the way you proposed: now it turns always CW...

The measured voltage using my original setup is 4.78V...could'nt be better!
23  Forum 2005-2010 (read only) / Interfacing / Re: Servo won't stop turning... on: August 22, 2010, 11:47:01 am
And about the power supplied: this servo's designed to work with 4.8V.
24  Forum 2005-2010 (read only) / Interfacing / Re: Servo won't stop turning... on: August 22, 2010, 11:44:39 am
I tried this one too, servo acts the same way. About the arduino I'm using, it's Duemilanove, yes. It's powered through USB only, and the servo is connected as mentionned in #1 post, directly to the board. And my clue that the servo is good is that I have another one, exactly the same. Same results.
I'm going to try servo.read...And BTW: thanks for your answers smiley-wink
25  Forum 2005-2010 (read only) / Interfacing / Re: Servo won't stop turning... on: August 22, 2010, 11:11:10 am
@AWOL > there's no mechanical end stop in this one I think, I can make it turn forever.

@Richard > already done. With 180 value, it does ~2 turns CCW, then ~turns CW and so on. I tried to change this value to 90: it goes for 1 turn CW, stops for a few ms, goes for 1 turn CW again and so on.
26  Forum 2005-2010 (read only) / Interfacing / Servo won't stop turning... on: August 22, 2010, 10:17:25 am
Hi everyone.
I got a little problem with a servo. It's a common one, the GWS S03N.
I've connected it to the arduino as this:
-brown -> GND
-red-> +5
-orange -> pin n°9

And then, no way to use it as a normal servo. I mean, when I write a value, it turns CW or CCW, always at the same speed, and stops only if I use servo.detach().
Someone knows how to use it with angles, as with any servo?

Here's the piece of code used for tests:
Quote
#include <Servo.h>

Servo myservo;  // create servo object to control a servo

int pos = 0;    // variable to store the servo position

void setup()

  myservo.attach(9);  // attaches the servo on pin 9 to the servo object
  myservo.write(30);


void loop()

  


27  Forum 2005-2010 (read only) / Interfacing / Re: About two great LCDs... on: August 21, 2010, 11:10:32 am
Thx for your informations cr0sh, even if these are not good news :'(
28  Forum 2005-2010 (read only) / Interfacing / Re: About two great LCDs... on: August 20, 2010, 08:10:01 pm
Can someone help with the GBA LCD?
29  Forum 2005-2010 (read only) / Interfacing / Re: About two great LCDs... on: August 20, 2010, 07:47:41 pm
Thx archembo smiley-wink I see you're french? I am too smiley-wink

Ive browsed the datasheet and found on page 20/35 that this LCD doesn't accept parallel/serial input but RGB...thus connection to the arduino is compromised, no?

Sassa > the EeePC's screen is a VGA display, no? VGA libraries for the arduino does exists.
30  Forum 2005-2010 (read only) / Interfacing / About two great LCDs... on: August 20, 2010, 07:32:08 pm
Hi everyone.
Today Ive found and dismanteled a Game Boy Advance and a Scott portable DVD player in order to get their LCDs back, and here's the result (the arduino's just there for size comparison):



Now here's the problem. I can't find any datasheet for both of them. The BGA LCD has no usable reference written on it, and the big on has one (LTA070A250A), but I cant find its datasheet.
Can someone help?
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