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31  Forum 2005-2010 (read only) / Interfacing / Re: Heat Sensor? on: November 02, 2008, 12:13:30 am
Ipod Touch's and iPhones use capacitance to detect the finger
32  Forum 2005-2010 (read only) / Interfacing / Re: turning a camera on on: November 01, 2008, 05:06:59 am
you may be able to power the camera off the arduinos 3.3 volt output
33  Forum 2005-2010 (read only) / Interfacing / Re: Stepper motor from printer help on: October 29, 2008, 02:46:41 am
if i dont want to use a h bridge can i still drive it with external power if so how?
34  Forum 2005-2010 (read only) / Interfacing / Re: Stepper motor from printer help on: October 27, 2008, 10:18:19 pm
I have tried it without a separate power supply but not home tonight will try tomorrow night after school
Thanks for the help.
35  Forum 2005-2010 (read only) / Interfacing / Stepper motor from printer help on: October 26, 2008, 03:53:04 am
Hi,
im trying to use a stepper motor from a printer and the stepper motor example doesnt work. its bipolar i think as it only has 4 wires.
the only marks on it are mitsumi stepping motor M42sp-7.
Any ideas?
36  Forum 2005-2010 (read only) / Interfacing / Re: Communicate on: October 15, 2008, 12:03:04 am
What mobile phone are you connecting this to?
37  Forum 2005-2010 (read only) / Interfacing / Re: Adjusting dimmer on: October 13, 2008, 05:33:40 pm
Hi,
His homework was to find a usefull project that someone could build. He was looking for this script but could not find one so we tried to make one.
His teacher like the fact that he had made something new and had asked for help. smiley
I was helping because i have an Arduino and he doesn't so he could not test it.
38  Forum 2005-2010 (read only) / Interfacing / Re: Adjusting dimmer on: October 12, 2008, 05:17:46 am
Thanks very much works great smiley
This is for a friends electronics assignment.
smiley
39  Forum 2005-2010 (read only) / Interfacing / Re: Adjusting dimmer on: October 12, 2008, 04:41:12 am
Ive tryed to make it using code from examples so please don't tell me thats they are described wring just trying to get it to work.
Code:
/*
* Cybot's attempt
*/

int value = 0;                            // variable to keep the actual value
int ledpin = 9;                           // light connected to digital pin 9
int potPin = 2;                           // Potn

void setup()
{
int value = 0;                            // variable to keep the actual value
int ledpin = 9;                           // light connected to digital pin 9
int potPin = 2;                           // Potn
}

void loop() {
int value = 0;                            // variable to keep the actual value
int ledpin = 9;                           // light connected to digital pin 9
int potPin = 0;                           // Potn
  pinMode(2, OUTPUT);
potpin = analogRead(2);    // read the value from the sensor
  for(value = 0 ; value <= 255; value+=potpin) // fade in (from min to max)
    analogWrite(ledpin, value);           // sets the value (range from 0 to 255)
  delay(100);                            // waits for 30 milli seconds to see the dimming effect
  for(value = 255; value >=0; value-=5)   // fade out (from max to min)
    analogWrite(ledpin, value);
  delay(30);  
}
Cybot
40  Forum 2005-2010 (read only) / Interfacing / Adjusting dimmer on: October 12, 2008, 04:26:43 am
Hi,
I'm trying to make a dimmer circuit that just makes a led fade in at a rate set by a potentiometer and them fade out at the same rate.
Whenever i have tryed to code this i keep getting errors.
Any help would be great.
Cybot
41  Forum 2005-2010 (read only) / Exhibition / Re: SD card read/write with Arduino on: December 13, 2008, 12:49:56 am
If we could store the code on the SD card then could we make it able to have 2 sets of code files and a switch to switch between them and their code?
42  Forum 2005-2010 (read only) / Exhibition / Re: SD card read/write with Arduino on: November 06, 2008, 06:19:13 pm
Can you use this with a micro sd card?
43  Forum 2005-2010 (read only) / Exhibition / Re: Arduino Pong on: October 29, 2008, 05:12:30 am
Make sure you have the 75() resistor correct or else you may not see anything on your tv! also check the voltages with a multi meter can save your tv from more current then nesserary or worse! Have fun
44  Forum 2005-2010 (read only) / Exhibition / Re: RBGLed Library on: October 12, 2010, 12:37:12 am
Hi,
i love the concept, mayb you could make a function so you can say wether it drives the outputs high or low (dependign if its anode or cathode commen) and i would really love a function to send a Hue value to it, once you mkae it easy to send the hue or RGB value to it im definatly over the moon, im building a custom xbox case that is full of rgb leds and im planing to have the colour fade across the xbox, so if i could use this to send the hue to like 10 rgb leds one after another i would be over the moon smiley-grin

Thanks, and keep up the good work.
45  Forum 2005-2010 (read only) / Exhibition / Re: Hue-controllable RGB LED lamp on: September 04, 2010, 04:45:35 am
Hi,
just wanted to say thanks, im using this code to run a RGB backlight to a lcd thats howing my computer stats smiley-grin
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