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1  Using Arduino / Motors, Mechanics, and Power / Re: Using 12V for Piezo buzzer issue on: September 08, 2013, 07:48:30 pm
Other ways to drive are put it in series with 150 ohm resistor and then drive from two pins driven anti-phase - this gives 10V peak-peak
signal without needing transistor or 12V supply.

Can you explain a little bit more that part? thanks smiley
2  Using Arduino / Installation & Troubleshooting / Arduino ADK - mega8u2 problem on: March 06, 2012, 05:26:10 pm
Hi,
I got an Arduino ADK last week and yesterday I tried it with Samsung Galaxy S and it works but after some time I can't connect it to PC :s tried another PC and the same thing, nothing...

Basically the board works with the last arduino code I uploaded, I can connect the Samsung Galaxy and play with the led but can't connect it to PC so for some reason the mega8u2 broke.

I contacted the store but it said they can't get it back and that Arduino doesn't have  any kind of guarantee, is that true? The stupid thing is that I have an Arduino duemilanove since 5 years and use it for all the things with any kinf of problems and it after some minutes broke... :S
What should I do?

Sorry my english :s
3  Forum 2005-2010 (read only) / Syntax & Programs / Re: An array of char to a char on: July 04, 2009, 12:20:36 pm
thanks smiley

That fubction have better performance then a FOR cycle?
4  Forum 2005-2010 (read only) / Syntax & Programs / Re: An array of char to a char on: July 04, 2009, 11:23:32 am
1) Can i use that function on Arduino?

2) Can i compare an array of char (char cmd[5]="1234") with a char (cmd1="1234") ?
5  Forum 2005-2010 (read only) / Syntax & Programs / An array of char to a char on: July 04, 2009, 10:55:53 am
Hi,

I have an array of char (char cmd[]="1234"smiley-wink and i want to convert it to a char (char cmd1="1234"smiley-wink

I need to compare the char. If i'm using an array i need to use a for but i want to use something like:

if(cmd1 == "1234"){
    ....
    ....
}
6  Forum 2005-2010 (read only) / Development / Re: Library for DS1307 Real Time Clock on: February 22, 2009, 01:24:06 pm
Hy, good work!

Can someone post the libraries with all the corrections please?
7  Forum 2005-2010 (read only) / Portugues / Re: Arduino em Portugal on: August 26, 2009, 09:31:36 am
A loja LusoRobótica também vende Arduinos em Portugal.
8  Forum 2005-2010 (read only) / Portugues / Re: Projeto Arduino - Matriz de Leds on: March 23, 2009, 11:35:21 am
Pois, não tenho conta em nenhum banco brasileiro, quanto a essa loja futurlec posso dizer que é boa!
9  Forum 2005-2010 (read only) / Portugues / Re: Projeto Arduino - Matriz de Leds on: March 21, 2009, 07:49:22 pm
Se me pagar os portes eu até te posso enviar isso de Portugal, mas teria que esperar que as samples chegassem a Portugal e depois enviava para aí.
10  Forum 2005-2010 (read only) / Troubleshooting / Re: Dual power supply for Arduino and La Fonera on: April 07, 2009, 05:35:27 pm
Can you post information about how you connect arduino and fonera, like code, etc?
11  Forum 2005-2010 (read only) / Interfacing / Re: Control 18 Servos on: July 19, 2009, 03:18:07 pm
Thanks  smiley
12  Forum 2005-2010 (read only) / Interfacing / Re: Control 18 Servos on: July 19, 2009, 11:28:01 am
And can you explain why that feature is important? What are the diference between gsclk and sclk?
13  Forum 2005-2010 (read only) / Interfacing / Control 18 Servos on: July 18, 2009, 06:39:40 pm
Hi,

Can i use that http://focus.ti.com/lit/ds/symlink/tlc5947.pdf with arduino duelminove to control 18 servo?
14  Forum 2005-2010 (read only) / Interfacing / Re: Feeling interest for a WiFi shield on: May 09, 2009, 08:19:38 am
Thanks
Why you don't use an i2c eeprom to save the webpage[] http://www.arduino.cc/playground/Code/I2CEEPROM24LC512 ?  It's very easy to use that memory
15  Forum 2005-2010 (read only) / Interfacing / Re: Feeling interest for a WiFi shield on: May 08, 2009, 09:03:06 pm
My really congratulations for your project smiley-wink

How you take the button action on the ipod example? i mean, how the arduino know that you click the button?
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