[mirrors/Programs.git] / arduino / IR_Jammer / IR_Jammer.pde

/*
 * Arduino IR-Jammer
 * <~~Harvie 2oo8
 *
 * You can look for couple of old TV remote controlls
 * to extract some IR LEDs...
 *
 * Each TV should have LED of specific "color"
 * (even you can't see it). So its better to connect
 * more LEDs with different light frequency (color).
 * Specialy if jammer is working only from small distance.
 *
 */

#define ledpin 13
//Maybe you will have to experiment also with this value
int bitlen = 5;
int d;
float i;

void setup() {
  pinMode(ledpin, OUTPUT);
}

void loop() {
  for(d=1000/100;d<=1000/20;d++) { // 1000/frequency in kHz
  //You maybe have to experiment with ^^^ this ^^^ values
  //Frequency sweeping: 100->20 kHz works, i saw 60->1 too
    for(i=0;i<bitlen;i+=0.5) {
      digitalWrite(ledpin, HIGH); delayMicroseconds(d/2);
      digitalWrite(ledpin, LOW ); delayMicroseconds(d/2);
    }
    delayMicroseconds(d*bitlen);
  }
}
Commit	Line	Data
cad05b18 H	1	/*
	2	* Arduino IR-Jammer
	3	* <~~Harvie 2oo8
	4	*
	5	* You can look for couple of old TV remote controlls
	6	* to extract some IR LEDs...
	7	*
	8	* Each TV should have LED of specific "color"
	9	* (even you can't see it). So its better to connect
	10	* more LEDs with different light frequency (color).
	11	* Specialy if jammer is working only from small distance.
	12	*
	13	*/
	14
	15	#define ledpin 13
	16	//Maybe you will have to experiment also with this value
	17	int bitlen = 5;
a3a3e374 H	18	int d;
a3a3e374 H	19	float i;
cad05b18 H	20
	21	void setup() {
	22	pinMode(ledpin, OUTPUT);
	23	}
	24
	25	void loop() {
	26	for(d=1000/100;d<=1000/20;d++) { // 1000/frequency in kHz
	27	//You maybe have to experiment with ^^^ this ^^^ values
	28	//Frequency sweeping: 100->20 kHz works, i saw 60->1 too
a3a3e374	29	for(i=0;i<bitlen;i+=0.5) {
cad05b18 H	30	digitalWrite(ledpin, HIGH); delayMicroseconds(d/2);
	31	digitalWrite(ledpin, LOW ); delayMicroseconds(d/2);
	32	}
	33	delayMicroseconds(d*bitlen);
	34	}
	35	}
	36