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--- lorawan_downlink [2017/12/12 08:24] – [4.1. Autonomo with LoRaBee] samer
+++ lorawan_downlink [2017/12/12 08:24] – [4.2. Arduino with Dragino Shield] samer
@@ Line 69: / Line 69: @@
 <code c++>
-void receiveData() {
+case EV_TXCOMPLETE:
-  // After we have send some data, we can receive some data
+      Serial.println(F("EV_TXCOMPLETE (includes waiting for RX windows)"));
-  // First we make a buffer
+      if (LMIC.dataLen) {
-  uint8_t payload[64];
+        // data received in rx slot after tx
-  // Now we fill the buffer and
+        Serial.print(F("Data Received: "));
-  // len = the size of the data
+        Serial.write(LMIC.frame + LMIC.dataBeg, LMIC.dataLen);
-  uint16_t len = LoRaBee.receive(payload, 64);
+        Serial.println();
-  String HEXPayload = "";
+      }
-  // When there is no payload the lorabee will return 131 (0x83)
-  // I filter this out
-  if (payload[0] != 131) {
-    for (int i = 0; i < len; i++) {
-      HEXPayload += char(payload[i]);
-    }
-    if (HEXPayload == "on") {
-      digitalWrite(LED_BUILTIN, HIGH);
-    }
-    if (HEXPayload == "off") {
-      digitalWrite(LED_BUILTIN, LOW);
-    }
-    debugSerial.println(HEXPayload);
-    //switchLED(HEXPayload);
-  } else {
-    debugSerial.println("no payload");
-  }
-}
 </code>
 ===== -. Selecting the Receive Windows =====