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1  Using Arduino / General Electronics / Re: Servo Question ?! on: May 15, 2011, 12:50:32 pm
I am just testing a few things smiley

Thanks again smiley
2  Using Arduino / General Electronics / Servo Question ?! on: May 15, 2011, 12:25:53 pm
I have a little trouble with my Arduino, when I charge my servo from 5v pin there is no problem, but when i try to charge it from digital pin I CANT ?!!??!!

Why I can't power it up the voltage and amps are the same but its unstable ?! Why ?

Thanks in advance smiley

PS:. Arduino Mega
3  Using Arduino / Motors, Mechanics, and Power / Re: Help with 19 servos and Mega on: February 21, 2011, 05:30:41 pm
So, do i read clear that PWMs are for DC motors ? and because mine are AC i use digital pins ?


Thanks again
4  Using Arduino / Motors, Mechanics, and Power / Help with 19 servos and Mega on: February 21, 2011, 12:40:14 pm
Can anybody tell me how i am supposed to control 19 servos with Arduino Mega, when i have only 11 PWMs ?
I am planing to make hexapod with 19 servors

thanks in advanced smiley
5  Forum 2005-2010 (read only) / Troubleshooting / IAR Workbench for AVR on: December 10, 2010, 08:00:09 am
Is it possible to use IAR IDE for pure C in arduino instead of processing ?
6  Forum 2005-2010 (read only) / Troubleshooting / Re: Arduinu + 20x4 LCD on: December 06, 2010, 03:28:20 am
y, I fixed it thanks smiley
7  Forum 2005-2010 (read only) / Troubleshooting / Re: Arduinu + 20x4 LCD on: December 05, 2010, 10:16:32 am
Here I uploaded a few pictures: http://www.flickr.com/photos/56765262@N08/

the LCD is QY-12864F
datasheet: https://docs.google.com/leaf?id=0B3hDTknDHqyGYjk4YmI5Y2UtZGE4Yi00YTIwLTljMTgtODYyMWFiMzgxYmZk&hl=bg&authkey=CP7lpOEF

8  Forum 2005-2010 (read only) / Troubleshooting / Re: Arduinu + 20x4 LCD on: December 05, 2010, 06:31:11 am
I cant control the contrast with potentiometer, can you help me ?
9  Forum 2005-2010 (read only) / Troubleshooting / Re: Arduinu + 20x4 LCD on: December 04, 2010, 06:01:14 pm
I use potentiometer for contrast, there is voltage trough it but, its not changing the contrast and I dont have idea how to fix this ?! Can you help me figure that out ?

Is it necessary to use external power like battery or its enough to use the USB cable, Power trough potentiometer is 4.04 V
10  Forum 2005-2010 (read only) / Troubleshooting / Arduinu + 20x4 LCD on: December 04, 2010, 03:40:02 pm
I have 20x4 blue LCD, when i connect it this way: http://www.ladyada.net/learn/lcd/charlcd.html

It's running only a blue screen and there are NOT any chars, only blue screen and nothing more, can you tell me how can I fix it ?
11  Forum 2005-2010 (read only) / Troubleshooting / Re: GLCD dynamic font change on: December 09, 2010, 05:25:17 pm
well, I dont have rect, I have text :?
12  Forum 2005-2010 (read only) / Troubleshooting / Re: GLCD dynamic font change on: December 09, 2010, 03:30:29 pm
I don't see this function in documentation ?!
13  Forum 2005-2010 (read only) / Troubleshooting / GLCD dynamic font change on: December 09, 2010, 03:05:53 pm
Hi there, I wanna make a menu, so I need to change the font from BLACK to WHITE and opposite, can you tell me figure out that ?
14  Forum 2005-2010 (read only) / Troubleshooting / Re: Problem with VQE-24 on: December 06, 2010, 03:22:21 am
Thanks for your help guys smiley
15  Forum 2005-2010 (read only) / Troubleshooting / Re: Problem with VQE-24 on: December 05, 2010, 05:47:17 pm
Well this device is maybe 15 years old/maybe more/ and its a huge that i found even that datasheet at the internet. Yes it require negative voltage and i think to make this run I need 16 transistors for negative part ...
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