RFID.cpp

00001 #include "RFID.h"
00002 
00003 //Takes in vector by reference and populates it with unique RFID values
00004 //until pb21 is pressed.
00005 int readTagSequence(std::vector<int>& v)
00006 {
00007    int currTag;
00008    int size = 0;
00009    printLCD("Scan tag", NULL);
00010    while (select) {
00011        if(rfid.readable()) {
00012            currTag = rfid.read();
00013            size++;
00014            v.resize(size);
00015            v[size-1] = currTag;
00016            char line1[16];
00017            sprintf(line1, "%d", v[size-1]);
00018            printLCD(line1, "added to list");
00019            wait(1.5);
00020            printLCD("Scan tag", NULL);
00021        }
00022        else if(!back) return 0;
00023    }
00024    return 1;
00025 }
00026 
00027 //Reads a single RFID tag, and returns value
00028 int readTag()
00029 {
00030    printLCD("Scan tag", NULL);
00031    int currTag = 0;
00032    while (!currTag) {
00033        if (rfid.readable()) {
00034            currTag = rfid.read();
00035            char line1[16];
00036            sprintf(line1, "%d", currTag);
00037            printLCD(line1, "read");
00038            wait(1.5);
00039            return currTag;
00040        }
00041        else if (!back) {
00042            return 0;
00043        }
00044    }
00045    return currTag;
00046 }