5 * You can look for couple of old TV remote controlls
6 * to extract some IR LEDs...
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.
16 //Maybe you will have to experiment also with this value
21 pinMode(ledpin, OUTPUT);
25 for(d=1000/100;d<=1000/20;d++) { // 1000/frequency in kHz
26 //You maybe have to experiment with ^^^ this ^^^ values
27 //Frequency sweeping: 100->20 kHz works, i saw 60->1 too
28 for(i=0;i<bitlen;i++) {
29 digitalWrite(ledpin, HIGH); delayMicroseconds(d/2);
30 digitalWrite(ledpin, LOW ); delayMicroseconds(d/2);
32 delayMicroseconds(d*bitlen);