add nfc reader lib

lib/NfcReader/src/NfcReader.cpp

@@ -0,0 +1,75 @@
+#include "../include/NfcReader.h"
+
+
+NfcReader::NfcReader(){
+    Serial2.begin(115200,SERIAL_8N1,2,3);//TODO: mettre le port série en paramètre
+    this->pair = true;
+    this->trame = new std::vector<byte>();
+}
+
+
+bool NfcReader::init(){
+    const std::vector<std::vector<byte>> INIT_TRAMES = {INIT_TRAM_0, INIT_TRAM_1, INIT_TRAM_2, INIT_TRAM_3, INIT_TRAM_4, INIT_TRAM_5, INIT_TRAM_6, INIT_TRAM_7};
+    const std::vector<std::vector<byte>> REP_TRAMES = {REP_TRAM_0, REP_TRAM_1, REP_TRAM_2, REP_TRAM_3, REP_TRAM_4, REP_TRAM_5, REP_TRAM_6, REP_TRAM_7};
+    int repnb = 0;
+    for(std::vector<byte> i: INIT_TRAMES){
+        for(byte j: i){
+            Serial2.write(j);
+        }
+        while (Serial2.available() == 0);
+        while (Serial2.available() > 0){
+            for(byte j: REP_TRAMES[repnb]){
+                if(Serial2.read() != j){
+                    Serial.println("NFC reader init failed");
+                    return false;
+                }
+            }
+        }
+        repnb++;
+    }
+    return true;
+}
+
+void NfcReader::refresh(){
+    this->trame->clear();
+    std::vector<byte> trame = READ_TRAM_0;
+    if (this->pair){
+        trame = READ_TRAM_1;
+    }
+    this->pair = !this->pair;
+
+    for(byte i: trame){
+        Serial2.write(i);
+    }
+    while (Serial2.available() == 0);
+    while (Serial2.available() > 0){
+        this->trame->push_back(Serial2.read());
+    }
+}
+
+
+String NfcReader::digitify(int number){
+    String sortie = "";
+
+    if(number <= 0xF){
+        sortie += '0';
+        sortie += String(number,HEX);
+    }else{
+        sortie += String(number,HEX);
+    }
+
+    return sortie;
+}
+
+
+void NfcReader::printTrame(){
+    for(byte i: *this->trame){
+        Serial.print(this->digitify(i));
+        Serial.print(" ");
+    }
+    Serial.println();
+}
+
+int NfcReader::getNbTags(){
+    return this->trame->at(8);
+}