[!C] New Class for sd writer

LoRaSender/LoRaSender.ino

@@ -5,6 +5,7 @@
 #include <Adafruit_SSD1306.h>
 #include <TinyGPS++.h>
 
+#include "SDCardHelper.ino"
 
 // LORA Settings
 #define SYNC_WORD 0xCE
@@ -29,9 +30,13 @@
 #define SCREEN_HEIGHT 64
 #define OLED_RESET -1
 
+#define SD_CS 13
+
 Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
 TinyGPSPlus gps;
 
+SDHelper logger(SD_CS, FAM_W);
+
 void sendMessage(const String& msg) {
   LoRa.beginPacket();
   LoRa.write(SYNC_WORD);
@@ -68,16 +73,6 @@ bool getPacket(String& payload, byte& id) {
   return (payload.length() == len);
 }
 
-/*
-bool waitForAck(unsigned long timeout_ms = 1000) {
-  if (!waitForPacket(timeout_ms)) return false;
-  String payload;
-  byte snd;
-  if (!getPacket(payload, snd)) return false;
-  return (snd == RECEIVER_ID && payload == "ACK");
-}
-*/
-
 void showOnOLED(const String& line1, const String& line2 = "", const String& line3 = "", const String& line4 = "") {
   display.clearDisplay();
   display.setTextSize(1);
@@ -119,6 +114,11 @@ void SerialPrintGPS(){
   Serial.println("");
 }
 
+void storeToSD(const String& lat, const String& lng){
+  static int i = 1;
+  logger.Log(String(i++) + ": " + lat + " " + lng);
+}
+
 void setup() {
   Serial.begin(115200);
   Serial2.begin(_BAUDRATE_GPS, SERIAL_8N1, _RX_GPS, _TX_GPS);
@@ -178,6 +178,7 @@ void loop() {
       Serial.println("Sende GPS:\n" + lat_str + "\n" + lng_str);
       showOnOLED("Sende GPS Koords:", lat_str, lng_str, satellites);
 
+      storeToSD(lat_str, lng_str);
       sendMessage(lat_str + "\n\n" + lng_str + "\n\n" + satellites);
     }
   }