/**
* Blocking function, waits for and gets the RFID tag.
*/
boolean getRFIDTag() {
byte next_byte;
if(Serial.available() <= 0) return false;
if((next_byte = Serial.read()) == START_BYTE) {
byte bytesread = 0;
while(bytesread < CODE_LEN) {
if(Serial.available() > 0) { //wait for the next byte
if((next_byte = Serial.read()) == STOP_BYTE) break;
tag[bytesread++] = next_byte;
tag[bytesread+1] = '\0';
}
}
boolean codeValid = isCodeValid();
if(isCodeValid()) return true;
else {
clearCode();
return false;
}
} else return false;
}
void loop() { //Start our main Arduino Loop
enableRFID(); //Enable the RFID card
getRFIDTag(); //Reads the tag
if(isCodeValid()) { //Validates that the tag is good
disableRFID(); //Puts the RFID reader in to low power mode
sendCode(); //Sends the code read to the serial port
delay(ITERATION_LENGTH); //Debounce?
}
else {
disableRFID(); //Got a incomplete code..
Serial.println("Got some noise");
}
Serial.flush();
clearCode();
}
