Cayenne LPP payload added (experimental)

src/lorawan.cpp

@@ -119,12 +119,7 @@ void do_send(osjob_t *j) {
 
   // Prepare payload with counter and, if applicable, gps data
   payload.reset();
-
-  if (cfg.blescan) {
-    payload.addCount(macs_wifi, macs_ble);
-  } else {
-    payload.addCount(macs_wifi, 0);
-  }
+  payload.addCount(macs_wifi, cfg.blescan ? macs_ble : 0);
 
 #ifdef HAS_GPS
   if ((cfg.gpsmode) && (gps.location.isValid())) {

src/main.cpp

@@ -692,8 +692,8 @@ void loop() {
         gps_read();
         ESP_LOGI(TAG,
                  "lat=%.6f | lon=%.6f | %u Sats | HDOP=%.1f | Altitude=%um",
-                 gps_status.latitude / (float)1000000,
-                 gps_status.longitude / (float)1000000, gps_status.satellites,
+                 gps_status.latitude / (float)1e6,
+                 gps_status.longitude / (float)1e6, gps_status.satellites,
                  gps_status.hdop / (float)100, gps_status.altitude);
       } else {
         ESP_LOGI(TAG, "No valid GPS position or GPS disabled");

src/paxcounter.conf

@@ -41,7 +41,7 @@
 #define SEND_SECS                       30     // [seconds/2] -> 60 sec.
 #define MEM_LOW                         2048    // [Bytes] low memory threshold triggering a send cycle
 #define RETRANSMIT_RCMD                 5       // [seconds] wait time before retransmitting rcommand results
-#define PAYLOAD_ENCODER                 1       // select payload encoder: 1 = Plain [default], 2 = Lora-serialized, 3 = CayenneLPP
+#define PAYLOAD_ENCODER                 3       // select payload encoder: 1 = Plain [default], 2 = Lora-serialized, 3 = CayenneLPP
 #define PAYLOAD_BUFFER_SIZE             51      // maximum size of payload block per transmit
 
 // Default LoRa Spreadfactor

src/payload.cpp

@@ -79,13 +79,11 @@ void TTNplain::addStatus(uint16_t voltage, uint64_t uptime, float cputemp) {
 
 /* ---------------- packed format with LoRa serialization Encoder ---------- */
 
-TTNserialized::TTNserialized(uint8_t size) {
-  buffer = (uint8_t *)malloc(size);
-}
+TTNserialized::TTNserialized(uint8_t size) { buffer = (uint8_t *)malloc(size); }
 
 TTNserialized::~TTNserialized(void) { free(buffer); }
 
-void TTNserialized::reset(void) { }
+void TTNserialized::reset(void) { } // buggy! to be done, we need to clear the buffer here, but how? 
 
 uint8_t TTNserialized::getSize(void) { return sizeof(buffer); }
 
@@ -145,20 +143,19 @@ uint8_t *CayenneLPP::getBuffer(void) { return buffer; }
 
 void CayenneLPP::addCount(uint16_t value1, uint16_t value2) {
   buffer[cursor++] = LPP_COUNT_WIFI_CHANNEL;
-  buffer[cursor++] = LPP_ANALOG_INPUT;
+  buffer[cursor++] = LPP_LUMINOSITY; // workaround, type meter not found?
   buffer[cursor++] = value1 >> 8;
   buffer[cursor++] = value1;
   buffer[cursor++] = LPP_COUNT_BLE_CHANNEL;
-  buffer[cursor++] = LPP_ANALOG_INPUT;
+  buffer[cursor++] = LPP_LUMINOSITY; // workaround, type meter not found?
   buffer[cursor++] = value2 >> 8;
   buffer[cursor++] = value2;
 }
 
 void CayenneLPP::addGPS(gpsStatus_t value) {
-  int32_t lat = value.latitude * (int32_t) 10000;
-  int32_t lon = value.longitude * (int32_t) 10000;
-  int32_t alt = value.altitude * (int32_t) 100;
-
+  int32_t lat = value.latitude / 100;
+  int32_t lon = value.longitude / 100;
+  int32_t alt = value.altitude;
   buffer[cursor++] = LPP_GPS_CHANNEL;
   buffer[cursor++] = LPP_GPS;
   buffer[cursor++] = lat >> 16;
@@ -183,7 +180,6 @@ void CayenneLPP::addStatus(uint16_t voltage, uint64_t uptime, float cputemp) {
   buffer[cursor++] = LPP_ANALOG_INPUT;
   buffer[cursor++] = voltage >> 8;
   buffer[cursor++] = voltage;
-
   buffer[cursor++] = LPP_TEMP_CHANNEL;
   buffer[cursor++] = LPP_TEMPERATURE;
   buffer[cursor++] = (uint16_t)cputemp >> 8;

src/payload.h

@@ -18,6 +18,7 @@
 #define LPP_DIGITAL_INPUT 0  // 1 byte
 #define LPP_DIGITAL_OUTPUT 1 // 1 byte
 #define LPP_ANALOG_INPUT 2   // 2 bytes, 0.01 signed
+#define LPP_LUMINOSITY 101   // 2 bytes, 1 lux unsigned
 
 class TTNplain {
 public: