add example for LORA

Module/LORA/Arduino/LoRaReceiver/LoRaReceiver.ino

@@ -0,0 +1,47 @@
+#include <M5Stack.h>
+#include <M5LoRa.h>
+
+
+void setup() {
+
+  M5.begin();
+
+  // override the default CS, reset, and IRQ pins (optional)
+  LoRa.setPins(); // default set CS, reset, IRQ pin
+  Serial.println("LoRa Receiver");
+  M5.Lcd.println("LoRa Receiver");
+
+  // frequency in Hz (433E6, 866E6, 915E6)
+  if (!LoRa.begin(433E6)) {
+    Serial.println("Starting LoRa failed!");
+    M5.Lcd.println("Starting LoRa failed!");
+    while (1);
+  }
+
+  // LoRa.setSyncWord(0x69);
+  Serial.println("LoRa init succeeded.");
+  M5.Lcd.println("LoRa init succeeded.");
+}
+
+void loop() {
+  // try to parse packet
+  int packetSize = LoRa.parsePacket();
+  if (packetSize) {
+    // received a packet
+    Serial.print("Received packet: \"");
+    M5.Lcd.print("Received packet: \"");
+
+    // read packet
+    while (LoRa.available()) {
+      char ch = (char)LoRa.read();
+      Serial.print(ch);
+      M5.Lcd.print(ch);
+    }
+
+    // print RSSI of packet
+    Serial.print("\" with RSSI ");
+    Serial.println(LoRa.packetRssi());
+    M5.Lcd.print("\" with RSSI ");
+    M5.Lcd.println(LoRa.packetRssi());
+  }
+}

Module/LORA/Arduino/LoRaSender/LoRaSender.ino

@@ -0,0 +1,42 @@
+#include <M5Stack.h>
+#include <M5LoRa.h>
+
+
+void setup() {
+
+  M5.begin();
+
+  // override the default CS, reset, and IRQ pins (optional)
+  LoRa.setPins(); // default set CS, reset, IRQ pin
+  Serial.println("LoRa Sender");
+  M5.Lcd.println("LoRa Sender");
+
+  // frequency in Hz (433E6, 866E6, 915E6)
+  if (!LoRa.begin(433E6)) {
+    Serial.println("Starting LoRa failed!");
+    M5.Lcd.println("Starting LoRa failed!");
+    while (1);
+  }
+
+  // LoRa.setSyncWord(0x69);
+  Serial.println("LoRa init succeeded.");
+  M5.Lcd.println("LoRa init succeeded.");
+}
+
+void loop() {
+  // try to parse packet
+  static uint32_t counter;
+
+  Serial.print("Sending packet: ");
+  Serial.println(counter);
+
+  // send packet
+  LoRa.beginPacket();
+  LoRa.print("hello ");
+  LoRa.print(counter);
+  LoRa.endPacket();
+
+  counter++;
+
+  delay(1000);
+}