Monday, August 23, 2010

Phoenix LTX

Hey look I made a lazer tag gun! It runs on Arduino using the IRremote library.

Send:
void IRsend::sendPHOENIX_LTX(unsigned long data, int nbits) {

enableIROut(36);
//HEAD
mark(PHOENIX_HDR_MARK);
space(PHOENIX_HDR_SPACE);
mark(PHOENIX_HDR_MARK);
int i = 0;
for (i = 0; i < 7; i++) {
if (i % 2 == 0) {
space(PHOENIX_LTX_SPACE);
} else {
mark(PHOENIX_LTX_ZERO_MARK);
}
}
//DATA
if ((data >> 2) & 1 == 1) {
mark(PHOENIX_LTX_ONE_MARK);
} else {
mark(PHOENIX_LTX_ZERO_MARK);
}
space(PHOENIX_LTX_SPACE);
if ((data >> 0) & 1 == 1) {
mark(PHOENIX_LTX_ONE_MARK);
} else {
mark(PHOENIX_LTX_ZERO_MARK);
}
//TAIL
for (i = 0; i < 4; i++) {
if (i % 2 == 0) {
space(PHOENIX_LTX_SPACE);
} else {
mark(PHOENIX_LTX_ZERO_MARK);
}
}
space(PHOENIX_LTX_SPACE);

}

Receive:
long IRrecv::decodePHOENIX_LTX(decode_results *results) {

long data = 0;

int offset = 1;

int i = 0;

//HEAD

if (results->rawlen != 18) {

return ERR;

}

if (!MATCH_MARK(results->rawbuf[offset], PHOENIX_HDR_MARK)) {

return ERR;

}

offset++;

if (!MATCH_SPACE(results->rawbuf[offset], PHOENIX_HDR_SPACE)) {

return ERR;

}

offset++;

if (!MATCH_MARK(results->rawbuf[offset], PHOENIX_HDR_MARK)) {

return ERR;

}

offset++;

for (i = 0; i < 7; i++) {

if (i % 2 == 0) {

if (!MATCH_SPACE(results->rawbuf[offset], 2000)) {

Serial.println(i, DEC);

return ERR;

}



} else {



if (!MATCH_MARK(results->rawbuf[offset], 1000)) {

Serial.println(i, DEC);

return ERR;

}

}

offset++;

}

Serial.println("Data");

//DATA

for (i = 0; i < 3; i++) {

if (MATCH_MARK(results->rawbuf[offset], PHOENIX_LTX_ONE_MARK)) {

data << 1;

data |= 1;

} else if (MATCH_MARK(results->rawbuf[offset], PHOENIX_LTX_ZERO_MARK)) {

data << 1;

data |= 0;

} else {

Serial.println(i, DEC);

return ERR;

}

offset++;

}

Serial.println("Tail");

//TAIL

for (i = 0; i < 2; i++) {

if (!MATCH_SPACE(results->rawbuf[offset], 2000)) {

return ERR;

}

offset++;

if (!MATCH_MARK(results->rawbuf[offset], 1000)) {

return ERR;

}

offset++;

}



// Success

results->bits = 3;

results->value = data;

results->decode_type = PHOENIX_LTX;

return DECODED;

}

Defines:
#define PHOENIX_HDR_MARK 3000
#define PHOENIX_HDR_SPACE 6000
#define PHOENIX_LTX_ONE_MARK 2000
#define PHOENIX_LTX_ZERO_MARK 1000
#define PHOENIX_LTX_SPACE 2000