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31  Using Arduino / Motors, Mechanics, and Power / Re: Arduino Reducing USB Power (5V to 2.7V) on: August 05, 2011, 09:35:59 pm
Try some resistors and transformers. Carefully calculate the right ones to use. I am not responsible for any broken arduino boards and I would hate for you to lose out on the fun you are having with your arduino.
32  Using Arduino / Motors, Mechanics, and Power / Re: cheap electric lock or strike on: August 05, 2011, 09:33:16 pm
The cheapest I have seen on ebay and other sites are around $30. I think they should be relatively easy to hook up to the arduino. I think you may want to use the digital ports and not the analog however because it should only be locked or open not in between. If you wanted analog a servo or motor connected to a deadbolt might suit you better.
33  Using Arduino / Motors, Mechanics, and Power / Question about motor external power supply. on: August 05, 2011, 09:29:08 pm
I don't think the arduino board with its mere 5v of output can put out enough power to power some motors and servos I have. Is there a way I can connect these to an external power supply like a power cord or wall socket and still have them controllable with the arduino board without overloading the arduino with too much amps or volts? I appreciate any help I can get.
34  Using Arduino / Project Guidance / Re: Arduino Sound Sensor Need Help on: August 05, 2011, 09:17:09 pm
Thanks for the help. That's what I was looking for.
35  Using Arduino / Project Guidance / Re: Hacking My Digital Clock on: August 04, 2011, 08:41:06 pm
Use a voltometer to find the voltage just put the prongs to what you wanna measure and it'll tell you how many volts it has.
36  Using Arduino / Project Guidance / Arduino Sound Sensor Need Help on: August 04, 2011, 08:37:39 pm
I need to know if and how I can connect an arduino to a TV or audio device and detect the sound level from the cable or wire coming from the audio device to the arduino. I would appreciate the help as I just got my first Arduino board last night. I've gotten through almost all the tutorials.
37  Using Arduino / Programming Questions / Button Press on: August 04, 2011, 07:18:19 pm
How can I make a button only record 1 hit per button press. Right now the loop happens so fast it sees that the button state is on high many times and adds like 100 hits per second. Will something like debounce help? Can someone please give me help. I would really appreciate some sample code.

Code:
void loop()
{
  buttonState = digitalRead(buttonpin);
   lcd.setCursor(0, 1);
  if (buttonState == HIGH)
  {
   presses = presses + 1;
  }
38  Topics / Device Hacking / Re: Need help/advice for webcam hack on: July 23, 2011, 11:15:58 pm
Oh man that stinks. Do you know how I would go about doing something like that? I've seen people with uav planes that have it.
39  Topics / Robotics / Re: Help decide between two robot kits.. on: July 23, 2011, 03:31:05 pm
Think about the value you get for your money in each. How good of quality are each? How many motors and parts does each have? Just some things to think about. It's your decision to make I can't really decide for you.
40  Topics / Device Hacking / Re: Air Hogs on: July 23, 2011, 03:26:17 pm
Maybe led indicator lights, battery holders, rechargeable batteries, buttons, servos, motors and things like that.
41  Topics / Device Hacking / Re: Harvesting components from devices on: July 23, 2011, 03:24:35 pm
I harvested power cords, transformers, microphones, speakers, an led display, and the wireless system from a broken cordless phone. I got a speaker, buzzer,  led display, and power cord from a radio alarm clock.
42  Topics / Device Hacking / Re: Making a hard disk clickity-clack on: July 23, 2011, 03:21:43 pm
Get an old scrap hard drive that barely works except for the motor or has almost no memory. It would be a shame to waste a good hard drive on a device to annoy your little brother or sister or parents. You may be better off just using some motors with a clicker of some type hooked onto them. Maybe a dog training clicker would be a cool noisemaker.
43  Topics / Device Hacking / Need help/advice for webcam hack on: July 23, 2011, 03:14:41 pm
I need some help/advice for how to hack a USB webcam to be arduino compatible for a robot or unmanned aerial vehicle so that I can see on some type of monitor what it's doing when I control it remotely. All help is greatly appreciated.
44  Using Arduino / General Electronics / Re: Need help with radio control on: July 19, 2011, 05:47:13 pm
Thanks a lot for the help is it arduino compatible?  I just plug the motors into the inputs on there right?
45  Using Arduino / General Electronics / Re: Need help with radio control on: July 19, 2011, 05:13:24 pm
I am trying to build a remote control lawnmower like the one here http://www.instructables.com/id/Arduino-RC-Lawnmower/ Where can I get just a receiver that will fit the crystal?
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