[Firmware] Adapt Decoder for Optimized Payload Format

Firmware/README.md

@@ -11,14 +11,21 @@ Project was created using PlatformIO Atmel-AVR Framework
 ```
 function Decoder(bytes, port) {
   var decoded = {};
-  decoded.t = (bytes[0]) | (bytes[1] << 8 ) | (bytes[2] << 16 ) | (bytes[3] << 24)
-  decoded.t = decoded.t / 100
-  decoded.p = (bytes[4]) | (bytes[5] << 8 ) | (bytes[6] << 16 ) | (bytes[7] << 24)
-  decoded.p = decoded.p / 100
-  decoded.h = (bytes[8]) | (bytes[9] << 8 ) | (bytes[10] << 16 ) | (bytes[11] << 24)
-  decoded.h = decoded.h / 100
-  decoded.v = (bytes[12]) | (bytes[13] << 8 ) | (bytes[14] << 16 ) | (bytes[15] << 24)
-  decoded.v = decoded.v / 1000
+
+  // We always have Battery Voltage
+  decoded.v = (bytes[0] * 20) / 1000.0;
+
+  // Temperature (int32_t)
+  if (bytes.length >= 5)
+    decoded.t = (bytes[1]) | (bytes[2] << 8 ) | (bytes[3] << 16 ) | (bytes[4] << 24) / 100.0;
+  
+  // Humidity (int32_t)
+  if (bytes.length >= 9)
+    decoded.t = (bytes[5]) | (bytes[6] << 8 ) | (bytes[7] << 16 ) | (bytes[8] << 24) / 100.0;
+
+  // Atmospheric Pressure (int32t)
+  if (bytes.length >= 13)
+    decoded.t = (bytes[9]) | (bytes[10] << 8 ) | (bytes[11] << 16 ) | (bytes[12] << 24) / 100.0;
 
   return decoded;
 }

Firmware/src/main.cpp

@@ -202,7 +202,7 @@ void loop()
   
   #ifdef RF_LORA
     #ifdef HAS_NO_SENSOR
-    // Send Packet in all 12 SFs for Beacon Mode
+    // Send Packet in all 6 SFs for Beacon Mode
     unsigned char Frame_Port =0x07;
     for  (int i = SF7BW125; i<=SF12BW125; i++) {
       lora_data tdata = data;
@@ -213,7 +213,7 @@ void loop()
     }
     #else
     // Send LoRa Packet, Increment Frame Counter
-    lora.Send_Data((unsigned char *)&data, sizeof(data), Frame_Counter_Tx, SF7BW125);
+    lora.Send_Data((unsigned char *)&data, sizeof(data), Frame_Counter_Tx, SF7BW125, 0x01);
     Frame_Counter_Tx++;
     #endif
   #endif
@@ -230,4 +230,4 @@ void loop()
 
   // Sleep until next Measurement
   sleep(SLEEP_TIME);
-}
+}