BME280 pressure not shown

[mfalkvidd]

I have added a message for barometric pressure to one of my nodes. The node is able to send the message and gets ACK. Domoticz sees the node in "Hardware" (see screen shot below; I first tried with child_id 4 and then with child_id 6, that's why there are 2 children). I am unable to see the child in "Devices", and there is no widget for the device.

Any ideas on how to troubleshoot this?

Domoticz log

2019-03-05 19:16:19.424 Status: MySensors: Node: 1, Sketch Name: StorageRoom Mar 5 2019
2019-03-05 19:16:19.505 Status: MySensors: Node: 1, Sketch Version: 1.2
2019-03-05 19:16:20.204 (MySensors RFM69) General/Sound Level (Storage RSSI)
2019-03-05 19:16:20.428 (MySensors RFM69) General/Sound Level (Storage RSSI)
2019-03-05 19:16:20.655 (MySensors RFM69) General/Sound Level (Storage RSSI)
2019-03-05 19:16:21.474 (MySensors RFM69) General/Voltage (Storage Voltage Before)
2019-03-05 19:16:21.490 (MySensors RFM69) General/Sound Level (Storage RSSI)
2019-03-05 19:16:21.564 (MySensors RFM69) General/Sound Level (Storage RSSI)
2019-03-05 19:16:21.640 (MySensors RFM69) General/Sound Level (Storage RSSI)
2019-03-05 19:16:21.720 (MySensors RFM69) General/Sound Level (Storage RSSI)
2019-03-05 19:16:21.799 (MySensors RFM69) General/Voltage (Storage Voltage After)
2019-03-05 19:16:21.815 (MySensors RFM69) General/Sound Level (Storage RSSI)
2019-03-05 19:17:05.678 (MySensors RFM69) General/Sound Level (2.4GHz Wifi RSSI RFM69GW)

My sketch:

// Enable debug prints
#define MY_DEBUG
#define MY_NODE_ID 1

// Enable and select radio type attached
#define MY_RFM69_NEW_DRIVER
//#define MY_RX_MESSAGE_BUFFER_FEATURE
#define MY_RFM69_ATC_MODE_DISABLED
#define MY_RFM69_CSMA_LIMIT_DBM -75
#define MY_RADIO_RFM69
#define MY_IS_RFM69HW
#define MY_RFM69_FREQUENCY RFM69_433MHZ
#define MY_RF69_IRQ_PIN 2
#define MY_RF69_SPI_CS 10

//#define MY_DEBUG_VERBOSE_RFM69 // Temporary

#define MY_TRANSPORT_WAIT_READY_MS (30000) // Don't stay awake for more than 30s if communication is broken

#include <MySensors.h> // From Library Manager

#include <Adafruit_BME280.h>
Adafruit_BME280 bme;

static const uint64_t UPDATE_INTERVAL = 300000;
#define WAIT_TIME 150
#define ALTITUDE 6

#define CHILD_ID_HUM 0
#define CHILD_ID_TEMP 1
#define CHILD_ID_VCC_BEFORE 2
#define CHILD_ID_VCC_AFTER 3
#define CHILD_ID_PRESSURE 6

MyMessage msgHum(CHILD_ID_HUM, V_HUM);
MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP);
MyMessage msgVccBefore(CHILD_ID_VCC_BEFORE, V_VOLTAGE);
MyMessage msgVccAfter(CHILD_ID_VCC_AFTER, V_VOLTAGE);
MyMessage msgPressure(CHILD_ID_PRESSURE, V_PRESSURE);
//TODO: Add light detection (irq-based, LDR)
//TODO: Add flooding detection

void presentation()
{
  // Send the sketch version information to the gateway
  sendSketchInfo(F("StorageRoom " __DATE__), F("1.2"));
  wait(WAIT_TIME);
  present(CHILD_ID_HUM, S_HUM);
  wait(WAIT_TIME);
  present(CHILD_ID_TEMP, S_TEMP);
  wait(WAIT_TIME);
  present(CHILD_ID_VCC_BEFORE, S_CUSTOM);
  wait(WAIT_TIME);
  present(CHILD_ID_VCC_AFTER, S_CUSTOM);
  wait(WAIT_TIME);
  present(CHILD_ID_PRESSURE, S_BARO);
}

void setup()
{
  if (! bme.begin(0x76)) {
    Serial.println("Could not find a valid BME280 sensor, check wiring! Continuing without sensor...");
  }
  bme.setSampling(Adafruit_BME280::MODE_FORCED,
                  Adafruit_BME280::SAMPLING_X1, // temperature
                  Adafruit_BME280::SAMPLING_X1, // pressure
                  Adafruit_BME280::SAMPLING_X1, // humidity
                  Adafruit_BME280::FILTER_OFF);
}

void loop()
{
  static float lastTemp, lastHum, lastPressure;
  send(msgVccBefore.set(readVcc() / 1000.0, 3));
  bme.takeForcedMeasurement();
  float temperature = bme.readTemperature();
  if (isnan(temperature)) {
    Serial.println("Failed reading temperature");
  } else if (temperature != lastTemp) {
    // Only send temperature if it changed since the last measurement
    lastTemp = temperature;
    send(msgTemp.set(temperature, 1));
  }
#ifdef MY_DEBUG
  Serial.print("T: ");
  Serial.println(temperature);
#endif

  float humidity = bme.readHumidity();
  if (isnan(humidity)) {
    Serial.println("Failed reading humidity");
  } else if (humidity != lastHum) {
    // Only send humidity if it changed since the last measurement
    lastHum = humidity;
    send(msgHum.set(humidity, 1));
  }
#ifdef MY_DEBUG
  Serial.print("H: ");
  Serial.println(humidity);
#endif
  float pressure = bme.readPressure() / pow((1.0 - (ALTITUDE / 44330.0)), 5.255); // Adjust to sea level pressure using user altitude
  if (isnan(pressure)) {
    Serial.println("Failed reading pressure");
  } else if (pressure != lastPressure) {
    // Only send pressure if it changed since the last measurement
    lastPressure = pressure;
    send(msgPressure.set(pressure, 1));
  }
#ifdef MY_DEBUG
  Serial.print("P: ");
  Serial.println(pressure);
#endif

  send(msgVccAfter.set(readVcc() / 1000.0, 3));
  // Sleep for a while to save energy
  sleep(UPDATE_INTERVAL);
}

long readVcc() {
  // From http://provideyourown.com/2012/secret-arduino-voltmeter-measure-battery-voltage/
  // Read 1.1V reference against AVcc
  // set the reference to Vcc and the measurement to the internal 1.1V reference
#if defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
  ADMUX = _BV(REFS0) | _BV(MUX4) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1);
#elif defined (__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__)
  ADMUX = _BV(MUX5) | _BV(MUX0);
#elif defined (__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
  ADMUX = _BV(MUX3) | _BV(MUX2);
#else
  ADMUX = _BV(REFS0) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1);
#endif

  delay(2); // Wait for Vref to settle
  ADCSRA |= _BV(ADSC); // Start conversion
  while (bit_is_set(ADCSRA, ADSC)); // measuring

  uint8_t low  = ADCL; // must read ADCL first - it then locks ADCH
  uint8_t high = ADCH; // unlocks both

  long result = (high << 8) | low;

  result = 1125300L / result; // Calculate Vcc (in mV); 1125300 = 1.1*1023*1000
  return result; // Vcc in millivolts
}

Node log:

20:16:17.369 ->  
20:16:17.369 ->  __  __       ____
20:16:17.369 -> |  \/  |_   _/ ___|  ___ _ __  ___  ___  _ __ ___
20:16:17.369 -> | |\/| | | | \___ \ / _ \ `_ \/ __|/ _ \| `__/ __|
20:16:17.369 -> | |  | | |_| |___| |  __/ | | \__ \  _  | |  \__ \
20:16:17.369 -> |_|  |_|\__, |____/ \___|_| |_|___/\___/|_|  |___/
20:16:17.369 ->         |___/                      2.3.2-beta
20:16:17.369 -> 
20:16:17.369 -> 18 MCO:BGN:INIT NODE,CP=RPNNA---,REL=3,VER=2.3.2-beta
20:16:17.369 -> 28 TSM:INIT
20:16:17.369 -> 28 TSF:WUR:MS=30000
20:16:17.369 -> 32 TSM:INIT:TSP OK
20:16:17.369 -> 34 TSM:INIT:STATID=1
20:16:17.369 -> 36 TSF:SID:OK,ID=1
20:16:17.369 -> 38 TSM:FPAR
20:16:17.369 -> 45 TSF:MSG:SEND,1-1-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
20:16:18.285 -> 954 TSF:MSG:READ,0-0-1,s=255,c=3,t=8,pt=1,l=1,sg=0:0
20:16:18.285 -> 960 TSF:MSG:FPAR OK,ID=0,D=1
20:16:19.372 -> 2054 TSM:FPAR:OK
20:16:19.372 -> 2054 TSM:ID
20:16:19.372 -> 2056 TSM:ID:OK
20:16:19.406 -> 2058 TSM:UPL
20:16:19.474 -> 2127 TSF:MSG:SEND,1-1-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=OK:1
20:16:19.712 -> 2377 TSF:MSG:READ,0-0-1,s=255,c=3,t=25,pt=1,l=1,sg=0:1
20:16:19.712 -> 2383 TSF:MSG:PONG RECV,HP=1
20:16:19.712 -> 2385 TSM:UPL:OK
20:16:19.712 -> 2387 TSM:READY:ID=1,PAR=0,DIS=1
20:16:19.814 -> 2459 TSF:MSG:SEND,1-1-0-0,s=255,c=3,t=15,pt=6,l=2,sg=0,ft=0,st=OK:0100
20:16:20.017 -> 2701 TSF:MSG:READ,0-0-1,s=255,c=3,t=15,pt=6,l=2,sg=0:0100
20:16:20.085 -> 2781 TSF:MSG:SEND,1-1-0-0,s=255,c=0,t=17,pt=0,l=10,sg=0,ft=0,st=OK:2.3.2-beta
20:16:20.187 -> 2861 TSF:MSG:SEND,1-1-0-0,s=255,c=3,t=6,pt=1,l=1,sg=0,ft=0,st=OK:0
20:16:20.221 -> 2897 TSF:MSG:READ,0-0-1,s=255,c=3,t=6,pt=0,l=1,sg=0:M
20:16:20.322 -> 2975 TSF:MSG:SEND,1-1-0-0,s=255,c=3,t=11,pt=0,l=23,sg=0,ft=0,st=OK:StorageRoom Mar  5 2019
20:16:20.390 -> 3061 TSF:MSG:SEND,1-1-0-0,s=255,c=3,t=12,pt=0,l=3,sg=0,ft=0,st=OK:1.2
20:16:20.594 -> 3287 TSF:MSG:SEND,1-1-0-0,s=0,c=0,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
20:16:20.831 -> 3512 TSF:MSG:SEND,1-1-0-0,s=1,c=0,t=6,pt=0,l=0,sg=0,ft=0,st=OK:
20:16:21.068 -> 3737 TSF:MSG:SEND,1-1-0-0,s=2,c=0,t=23,pt=0,l=0,sg=0,ft=0,st=OK:
20:16:21.272 -> 3960 TSF:MSG:SEND,1-1-0-0,s=3,c=0,t=23,pt=0,l=0,sg=0,ft=0,st=OK:
20:16:21.509 -> 4184 TSF:MSG:SEND,1-1-0-0,s=6,c=0,t=8,pt=0,l=0,sg=0,ft=0,st=OK:
20:16:21.509 -> 4192 MCO:REG:REQ
20:16:21.577 -> 4261 TSF:MSG:SEND,1-1-0-0,s=255,c=3,t=26,pt=1,l=1,sg=0,ft=0,st=OK:2
20:16:21.815 -> 4507 TSF:MSG:READ,0-0-1,s=255,c=3,t=27,pt=1,l=1,sg=0:1
20:16:21.849 -> 4513 MCO:PIM:NODE REG=1
20:16:21.849 -> 4515 MCO:BGN:STP
20:16:22.255 -> 4933 MCO:BGN:INIT OK,TSP=1
20:16:22.357 -> 5007 TSF:MSG:SEND,1-1-0-0,s=2,c=1,t=38,pt=7,l=5,sg=0,ft=0,st=OK:3.339
20:16:22.425 -> 5097 TSF:MSG:SEND,1-1-0-0,s=1,c=1,t=0,pt=7,l=5,sg=0,ft=0,st=OK:22.9
20:16:22.425 -> T: 22.85
20:16:22.527 -> 5175 TSF:MSG:SEND,1-1-0-0,s=0,c=1,t=1,pt=7,l=5,sg=0,ft=0,st=OK:33.8
20:16:22.527 -> H: 33.79
20:16:22.561 -> 5255 TSF:MSG:SEND,1-1-0-0,s=6,c=1,t=4,pt=7,l=5,sg=0,ft=0,st=OK:100240.5
20:16:22.595 -> P: 100240.46
20:16:22.663 -> 5335 TSF:MSG:SEND,1-1-0-0,s=3,c=1,t=38,pt=7,l=5,sg=0,ft=0,st=OK:3.329
20:16:22.663 -> 5343 MCO:SLP:MS=300000,SMS=0,I1=255,M1=255,I2=255,M2=255

Time on my Domoticz server is off by 1 hour, that's why the serial log is one hour ahead.

[mfalkvidd]

Never mind. I checked again and now it was listed in devices. Don't know why it wasn't there before, but at least it works now.

[nagelc]

I have seen domoticz not add a device to the list until it actually sees some value from the device (not just presentation). Might be what happened.

[mfalkvidd]

@nagelc yes that could be it. I have been fooled by that behavior before :)

The log shows that the value was delivered though

20:16:22.561 -> 5255 TSF:MSG:SEND,1-1-0-0,s=6,c=1,t=4,pt=7,l=5,sg=0,ft=0,st=OK:100240.5