Diff: main.cpp

Revision:

60:6b488cb72780

Parent:

56:39847849d219

--- a/main.cpp	Thu Nov 28 09:01:59 2019 +0000
+++ b/main.cpp	Tue Dec 03 09:21:15 2019 +0000
@@ -30,7 +30,7 @@
 // Max payload size can be LORAMAC_PHY_MAXPAYLOAD.
 // This example only communicates with much shorter messages (<30 bytes).
 // If longer messages are used, these buffers must be changed accordingly.
-uint8_t tx_buffer[30];
+uint8_t tx_buffer[50];
 uint8_t rx_buffer[30];
 
 /*
@@ -145,11 +145,14 @@
     return 0;
 }
 
-/**
+/*
  * Sends a message to the Network Server
  */
 static void send_message()
 {
+    /* 30 byte message 
+        can be 50 bytes, max
+    */
     uint16_t packet_len;
     int16_t retcode;
     int32_t sensor_value;
@@ -163,11 +166,16 @@
         printf("\r\n No sensor found \r\n");
         return;
     }
+    
+    uint16_t* sensor_readings = (uint16_t* ) malloc(25*sizeof(uint16_t));
+    int i = 0;
+    for(i; i < 25; i++) {
+        sensor_readings[i] = 1234;     
+    }
+   // tx_buffer = (uint8_t* )sensor_readings; 
+//    packet_len = 50;
 
-    packet_len = sprintf((char *) tx_buffer, "Dummy Sensor Value is %d",
-                         sensor_value);
-
-    retcode = lorawan.send(MBED_CONF_LORA_APP_PORT, tx_buffer, packet_len,
+    retcode = lorawan.send(MBED_CONF_LORA_APP_PORT, (uint8_t* )sensor_readings, 50,
                            MSG_UNCONFIRMED_FLAG);
 
     if (retcode < 0) {