Initial commit

sender.ino

@@ -0,0 +1,47 @@
+#include <SPI.h>
+#include <LoRa.h>
+
+int counter = 0;
+unsigned long previousMillis = 0;
+const long interval = 20000;
+
+void setup() {
+  Serial.begin(9600);
+  while (!Serial);
+
+  Serial.println("LoRa Transceiver");
+
+  if (!LoRa.begin(915E6)) {
+    Serial.println("Starting LoRa failed!");
+    while (1);
+  }
+   LoRa.setSpreadingFactor(7);
+}
+
+void loop() {
+
+  int packetSize = LoRa.parsePacket();
+  if (packetSize) {
+    Serial.print("Received Packet: ");
+    while (LoRa.available()) {
+      Serial.print((char) LoRa.read());  
+    }
+    Serial.println();
+  }
+
+  unsigned long currentMillis = millis();
+  if (currentMillis - previousMillis >= interval) {
+    previousMillis = currentMillis;
+    Serial.print("Sending packet: ");
+    Serial.println(counter);
+
+    // send packet
+  
+    LoRa.beginPacket();
+    LoRa.print(counter);
+    LoRa.print("|hello");
+    LoRa.endPacket();
+
+    counter++;
+  }
+}