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Old 04-16-2014, 06:50 PM #145
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Default Re: ARDUINO & DAC for XY projector

I tried to make myself bipolar powered by two of the accumulators at 12 V.

Voltmeter showed -12 and +12 as expected. However, when I connect the battery to the circuit ADC glowed to red and his legs melted.



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Old 04-17-2014, 02:00 AM #146
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Default Re: ARDUINO & DAC for XY projector

Surprising. I connected to your circuit ATX power supply (at 5 post).

At the output of the correct voltage. However, the laser does not react.
(I connected only the X coordinate and Y is not connected, and modulation)

I drives the DAC random values but do not stir Galve.
Laser itself automatically recognizes the connection to ILDA connector?
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Old 10-06-2014, 01:56 PM #147
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Default Re: ARDUINO & DAC for XY projector

can you send my your schematics of your circuit?
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50mW 532nm (ripped from a cheap stage projector)
500mW 532nm (in the laser harp)

1W RGB (500mW-660nm, 200mW-532nm, 500mW-450nm) Touch the white beam and it is: "AUCH!!"

The white laser burned the paint off from the door!
I am thinking of starting a "door-etching-business"
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Old 10-16-2014, 02:58 PM #148
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Default Re: ARDUINO & DAC for XY projector

Here is a new movie of the projector.

The galvos are directly connected to the DUE shield.

Not bad for an amateur.

ARDUINO LASER PROJECTOR - YouTube
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50mW 532nm (ripped from a cheap stage projector)
500mW 532nm (in the laser harp)

1W RGB (500mW-660nm, 200mW-532nm, 500mW-450nm) Touch the white beam and it is: "AUCH!!"

The white laser burned the paint off from the door!
I am thinking of starting a "door-etching-business"
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Old 08-01-2015, 07:05 AM #149
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Default Re: ARDUINO & DAC for XY projector

is it of the interest of the community that I develop a software to easily create files that can be read on the arduino that contain the pattern to project?
hercules.daniel@gmail.com is my email just in case.
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Old 11-10-2015, 03:50 PM #150
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Default Re: ARDUINO & DAC for XY projector

Hy !
I wrote the program for arduino. I would like to draw beautiful patterns such as hearts out. Somebody help him in the code.I use stepper motor and two laser dioda : green and blue .
My ide for example
https://www.youtube.com/watch?v=Ifre57oZlaE



Code:
#include <Stepper.h>

const int stepsPerRevolution = 3;  // change this to fit the number of steps per revolution
const int stepsPerRevolution1 = 3;  // change this to fit the number of steps per revolution
// for your motor
long randNumber1;
long randNumber2;
long randNumber3;
long randNumber4;
// initialize the stepper library on pins 8 through 11:
Stepper myStepper(stepsPerRevolution, 8, 9, 10, 11);
Stepper myStepper1(stepsPerRevolution1, 4, 5, 6, 7);

void setup() {
 
  Serial.begin(9600);
}
 
void loop() {
   
  randNumber1 = random(1, 1200);  // for nelkul
  randNumber3 = random(1, 1200);  // for nelkul
Serial.println(randNumber1 );
delay(1);
    // step one revolution  in one direction:
  Serial.println("clockwise  "); 
  myStepper.step(randNumber1); 
 
  delay(1);
   // step one revolution in the other direction:
  Serial.println("counterclockwise  ");
  myStepper.step(-randNumber3); 
 
  delay(1); // hogy lass is valamit rajta
// es majd innen kezdi elolrol

  randNumber2 = random(1, 1200);  // for nelkul
  randNumber4 = random(1, 1200);  // for nelkul
Serial.println(randNumber2 );
delay(1);
    // step one revolution  in one direction:
  Serial.println("clockwise  "); 
  myStepper1.step(randNumber2); 
 
  delay(1);
   // step one revolution in the other direction:
  Serial.println("counterclockwise  ");
  myStepper1.step(-randNumber4); 
 
  delay(1); // hogy lass is valamit rajta
// es majd innen kezdi elolrol
}

Last edited by dannu; 11-10-2015 at 03:54 PM.
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