try second time if first try fails (SendBuffer)

mini-beieli-node.ino

@@ -677,7 +677,7 @@ void StartNewIteration() {
   // we send data the first time the system is started, when the array is full
   // or when the weight has fallen more than threshold or the first measurement is
   // more than one hour old (which should not happen :-) )
-  if ( (next_package_is_init_package) || (my_position >= MAX_VALUES_TO_SEND) || ((last_sensor_reading.weight - current_sensor_reading.weight) > SEND_DIFF_THRESHOLD_5GRAMS) || ((millis() - timer_pos0) > 3600000)) {
+  if ( (next_package_is_init_package) || (my_position >= MAX_VALUES_TO_SEND) || (abs(last_sensor_reading.weight - current_sensor_reading.weight) > SEND_DIFF_THRESHOLD_5GRAMS) || ((millis() - timer_pos0) > 3600000)) {
     lora_data.offset_last_reading = (uint8_t)((millis() - timer_pos0) / 1000 / 60);
     if (config_data.debug_level > 0) {
       gCatena.SafePrintf("startSendingUplink(), my_position: %d, iteration: %d, package_counter: %d\n", my_position, iteration, package_counter);
@@ -783,17 +783,37 @@ void startSendingUplink(bool firstTime)
     fConfirmed = true;
   }
 
+  gCatena.poll();
+
   if (firstTime) {
     if (config_data.debug_level > 0) {
       gCatena.SafePrintf("SendBuffer firstTime\n");
     }
+    bool success = gLoRaWAN.SendBuffer((uint8_t*)&lora_data_first, sizeof(LORA_data_first), sendBufferDoneCb, NULL, fConfirmed, kUplinkPort);
+    // we try a second time if not successful...
+    if (! success) {
+      if (config_data.debug_level > 0) {
+        gCatena.SafePrintf("SendBuffer was not successful, we try a second time...\n");
+      }
+      gCatena.poll();
+      delay(500);
       gLoRaWAN.SendBuffer((uint8_t*)&lora_data_first, sizeof(LORA_data_first), sendBufferDoneCb, NULL, fConfirmed, kUplinkPort);
+    }
     package_counter++;
   } else {
     if (config_data.debug_level > 0) {
       gCatena.SafePrintf("SendBuffer not firstTime\n");
     }
+    bool success = gLoRaWAN.SendBuffer((uint8_t*)&lora_data, sizeof(LORA_data), sendBufferDoneCb, NULL, fConfirmed, kUplinkPort);
+    // we try a second time if not successful...
+    if (! success) {
+      if (config_data.debug_level > 0) {
+        gCatena.SafePrintf("SendBuffer was not successful, we try a second time...\n");
+      }
+      gCatena.poll();
+      delay(500);
       gLoRaWAN.SendBuffer((uint8_t*)&lora_data, sizeof(LORA_data), sendBufferDoneCb, NULL, fConfirmed, kUplinkPort);
+    }
     package_counter++;
   }
 
@@ -1023,6 +1043,7 @@ void doDeepSleep(osjob_t *pJob)
 void deepSleepPrepare(void)
 {
   Serial.end();
+  Wire.endTransmission(true);
   Wire.end();
   SPI.end();
   if (fFlash)
@@ -1112,8 +1133,6 @@ static void receiveMessage(void *pContext, uint8_t port, const uint8_t *pMessage
     float fval;
   } u;
 
-  SENSOR_data temp_sensor_data;
-
   if (config_data.debug_level > 0) {
     gCatena.SafePrintf("receiveMessage was called!!!\n");
   }

mini_beieli_node.h

@@ -56,7 +56,7 @@ enum {
   |
   \****************************************************************************/
 
-static const int32_t fwVersion = 20200525;
+static const int32_t fwVersion = 20200528;
 
 static const byte INIT_PACKAGE_INTERVAL = 100;  // send an init package every 100 packages;
 static const byte MAX_VALUES_TO_SEND = 8;
@@ -64,7 +64,7 @@ static const byte MAX_VALUES_TO_SEND = 8;
 static const uint8_t LORA_DATA_VERSION = 1;
 static const uint8_t LORA_DATA_VERSION_FIRST_PACKAGE = 128;
 static const uint32_t PRESSURE_OFFSET = 825;
-static const uint16_t SEND_DIFF_THRESHOLD_5GRAMS = 10;   // when weight value drops by 50g, then send data
+static const uint16_t SEND_DIFF_THRESHOLD_5GRAMS = 20;   // when weight changes by 100g, then send data
 static const long NOT_ATTACHED = -2147483648;
 static const byte INIT_PACKETS = 5;
 

mini_beieli_node_nau7802.h

@@ -24,7 +24,7 @@ void SetScalesDebugLevel(byte dbg_level)
 bool InitializeScales()
 {
   bool result;
-  result &= myScale.reset(); //Reset all registers
+  result = myScale.reset(); //Reset all registers
   result &= myScale.powerUp(); //Power on analog and digital sections of the scale
 
   result &= myScale.setIntPolarityHigh();
@@ -96,9 +96,12 @@ long ReadScale(char channel)
   long readings[num_scale_readings];  // create arry to hold readings
   for (int i = 0; i < num_scale_readings; i++) {
     //while (digitalRead(interruptPin) == LOW) {
+    long mytimer = millis();
     while (! myScale.available()) {
-      // we set a timeout of 60 seconds for the measurement...
-      if ((millis() - startTime) > 60000) {
+      // we set a timeout of 10 seconds for the measurement...
+      if ((millis() - mytimer) > 10000) {
+        // Timeout reading scale...
+        Wire.endTransmission(true);
         if (debug_level > 0) {
           gCatena.SafePrintf("Timeout while reading scale...\n");
         }
@@ -106,11 +109,14 @@ long ReadScale(char channel)
       }
       delay(1);
     }
-    long reading = myScale.getReading();
+    long reading;
+    if (myScale.available()) {
+      reading = myScale.getReading();  
+      readings[i] = reading;  
+    }
     if (debug_level > 0) {
       gCatena.SafePrintf("Reading: %d\n", reading);
     }
-    readings[i] = reading;  // fill the array with instantaneous readings from the scale
     delay(10);
   }