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181  Using Arduino / Project Guidance / Re: PC Can not upload to Barebones with FDTI breakout board on: November 16, 2012, 02:36:21 am
You have to press the reset button just after it shows memory used press the reset button and let go
it will program then
  here a link showing how to do this  http://digital-diy.com/forum/arduino/mintduino-and-things-you-need-to-know-t2494.html
182  Using Arduino / General Electronics / Re: generating a -10v...+10v control signal from an arduino on: November 15, 2012, 06:20:57 pm
It will work may have to play with it a  little but that's the fun part. low pass and a op-amp and 2 volts above 10 should go 10 to 0 volts
183  Using Arduino / Programming Questions / Re: Read a freqency from an analog pin on: November 15, 2012, 09:58:43 am
Na some one here used a magic wand with there crystal ball
184  Using Arduino / Programming Questions / Re: Read a freqency from an analog pin on: November 15, 2012, 09:26:02 am
Here a nice link to give a understanding of sound and they have a nice link to a real good preamp
http://courses.oliviarobinson.com/wt/node/79

Never could figure wHy we need a crystal ball now I NO
185  Using Arduino / Project Guidance / Re: Want to emulate a rotary encoder, have a couple of questions. on: November 14, 2012, 09:13:55 pm
Do you have the remote that sit's on the dash of the car
186  Using Arduino / General Electronics / Re: power for rf module on: November 14, 2012, 07:59:06 pm
Just put a diode coming from the positive side of the battery it will drop you down enough to make
the receiver work  
4 AAA one diode makes 5.3 volts and will keep you from hooking the battery's wrong  smiley-lol  
187  Using Arduino / General Electronics / Re: Control a Belimo with an arduino pwm on: November 14, 2012, 05:20:58 pm
Well if some one told you you can't walk would you sit in a chair. I wouldn't I would try to walk.
You'll never no if you can or not But if you use a part like what I said the output is going to be good
188  Using Arduino / General Electronics / Re: Max current in solderless breadboard / jumper wire on: November 14, 2012, 04:52:30 pm
A 26 Gauge wire is 1.3 amps enclosed and 2.2 amps open air 28 is almost a amp
189  Using Arduino / General Electronics / Re: Connect Gate Remote Board Directly to Arduino...? on: November 14, 2012, 11:42:59 am
Yep you need power Just make sure you tie the grounds to the remote Ground to the ground on the arduino need to be tied.

And you don't hook the emitter to any thing but the switch low side and it will work  

Here I made a video showing the hack. I'm toggling the npn with the battery for now

190  Using Arduino / General Electronics / Re: Control a Belimo with an arduino pwm on: November 13, 2012, 11:06:32 pm
There will be a loss of about  .7 volts  use a logic level fet like the 2n7000
You shouldn't need a filter on the line most of these can use AC or DC but then most I've seen are 24 volt for HVAC dampers
191  Using Arduino / General Electronics / Re: Connect Gate Remote Board Directly to Arduino...? on: November 13, 2012, 10:50:35 pm
Yours is a lot easier to figure out then My board you can see thee parts. lol
Just place the NPN pins collector and emitter to ground and hook the base to the arduino with a resistor 1k or higher and you should be able to make it work just as the button did.  

Your button is easy if you test it one side is high and one side should be ground just solder the collector to the high side of the button and solder the emitter to the low side of the button and you'll be good to go
192  Using Arduino / General Electronics / Re: Connect Gate Remote Board Directly to Arduino...? on: November 13, 2012, 07:36:39 pm
Let me show you what i'm saying
193  Using Arduino / General Electronics / Re: Help on momentary push switches in series. on: November 13, 2012, 06:25:35 pm
Here some code to test 13 button wired up as I posted 

Code:
const int keyMin = 0;      // Keymin, discovered through experiment
const int keyMax = 1023;    // keymax, discovered through experiment
void setup() {
  Serial.begin(9600);
}
void loop() {
  // read the sensor:
  int key = analogRead(A0);
  // map the sensor range to a range of four options:
  int keyValue = map(key, keyMin, keyMax, 0, 3);

  // do something different depending on the
  // range value:
  switch (keyValue) {
  case 0:    // your hand is on the sensor
    Serial.println("button1");
    break;
  case 1:    // your hand is close to the sensor
    Serial.println("button2");
    break;
  case 2:    // your hand is a few inches from the sensor
    Serial.println("button3");
    break;
  case 3:    // your hand is nowhere near the sensor
    Serial.println("button4t");
    break;
    case 4:    // your hand is nowhere near the sensor
    Serial.println("button5");
    break;
case 5:    // your hand is nowhere near the sensor
    Serial.println("button6");
    break;
case 6:    // your hand is nowhere near the sensor
    Serial.println("button7");
    break;
case 7:    // your hand is nowhere near the sensor
    Serial.println("button8");
    break;
case 8:    // your hand is nowhere near the sensor
    Serial.println("button9");
    break;
case 9:    // your hand is nowhere near the sensor
    Serial.println("button10");
    break;
case 10:    // your hand is nowhere near the sensor
    Serial.println("button11");
    break;
case 11:    // your hand is nowhere near the sensor
    Serial.println("button12");
    break;
case 12:    // your hand is nowhere near the sensor
    Serial.println("button13");
    break;

  }
  delay(1);        // delay in between reads for stability
}


194  Using Arduino / General Electronics / Re: Connect Gate Remote Board Directly to Arduino...? on: November 13, 2012, 06:13:07 pm
You got her right just use the transistor as a switch you shouldn't need a resistor on the collector
but I would look see what's on your button
195  Using Arduino / Programming Questions / Re: The new 1.0.2 is showing some thing about undefined reference to `setup' on: November 13, 2012, 06:07:47 pm
Dang that did the job I had that in there but I removed it some how Thanks
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