Smogomierz nie podaje danych z BME280 cd.

[opennas]

Mam czujnik BME280 wilgotności temperatury oraz ciśnienia i podłączony mam 4 kabelkami z wykorzystaniem SCL i SDA.

Zgodnie z rekomendacją wdo sprawdzenia adresu BME280 wykorzystałem kod https://playground.arduino.cc/Main/I2cScanner i zmieniłem Serial.begin(9600); na Serial.begin(115200);

Zmieniłem na nowy zarówno kontroler NodeMCU v3 + moduł WiFi ESP8266 jak i również czujnik BME280. Wszystko połączone jest zgodnie ze schematem i opisem.

Nie wiem co może być przyczyną tego problemu i proszę o pomoc, bo chwilowo wyczerpały mi się pomysły.

20:16:21.928 -> Scanning... 20:16:21.928 -> Unknown error at address 0x01 20:16:21.928 -> Unknown error at address 0x02 20:16:21.928 -> Unknown error at address 0x03 20:16:21.962 -> Unknown error at address 0x04 20:16:21.962 -> Unknown error at address 0x05 20:16:21.962 -> Unknown error at address 0x06 20:16:21.962 -> Unknown error at address 0x07 20:16:21.962 -> Unknown error at address 0x08 20:16:21.962 -> Unknown error at address 0x09 20:16:21.962 -> Unknown error at address 0x0A 20:16:21.962 -> Unknown error at address 0x0B 20:16:21.962 -> Unknown error at address 0x0C 20:16:21.962 -> Unknown error at address 0x0D 20:16:21.962 -> Unknown error at address 0x0E 20:16:21.962 -> Unknown error at address 0x0F 20:16:21.962 -> Unknown error at address 0x10 20:16:21.995 -> Unknown error at address 0x11 20:16:21.995 -> Unknown error at address 0x12 20:16:21.995 -> Unknown error at address 0x13 20:16:21.995 -> Unknown error at address 0x14 20:16:21.995 -> Unknown error at address 0x15 20:16:21.995 -> Unknown error at address 0x16 20:16:21.995 -> Unknown error at address 0x17 20:16:21.995 -> Unknown error at address 0x18 20:16:21.995 -> Unknown error at address 0x19 20:16:21.995 -> Unknown error at address 0x1A 20:16:21.995 -> Unknown error at address 0x1B 20:16:21.995 -> Unknown error at address 0x1C 20:16:22.029 -> Unknown error at address 0x1D 20:16:22.029 -> Unknown error at address 0x1E 20:16:22.029 -> Unknown error at address 0x1F 20:16:22.029 -> Unknown error at address 0x20 20:16:22.029 -> Unknown error at address 0x21 20:16:22.029 -> Unknown error at address 0x22 20:16:22.029 -> Unknown error at address 0x23 20:16:22.029 -> Unknown error at address 0x24 20:16:22.029 -> Unknown error at address 0x25 20:16:22.029 -> Unknown error at address 0x26 20:16:22.029 -> Unknown error at address 0x27 20:16:22.029 -> Unknown error at address 0x28 20:16:22.063 -> Unknown error at address 0x29 20:16:22.063 -> Unknown error at address 0x2A 20:16:22.063 -> Unknown error at address 0x2B 20:16:22.063 -> Unknown error at address 0x2C 20:16:22.063 -> Unknown error at address 0x2D 20:16:22.063 -> Unknown error at address 0x2E 20:16:22.063 -> Unknown error at address 0x2F 20:16:22.063 -> Unknown error at address 0x30 20:16:22.063 -> Unknown error at address 0x31 20:16:22.063 -> Unknown error at address 0x32 20:16:22.063 -> Unknown error at address 0x33 20:16:22.063 -> Unknown error at address 0x34 20:16:22.063 -> Unknown error at address 0x35 20:16:22.097 -> Unknown error at address 0x36 20:16:22.097 -> Unknown error at address 0x37 20:16:22.097 -> Unknown error at address 0x38 20:16:22.097 -> Unknown error at address 0x39 20:16:22.097 -> Unknown error at address 0x3A 20:16:22.097 -> Unknown error at address 0x3B 20:16:22.097 -> Unknown error at address 0x3C 20:16:22.097 -> Unknown error at address 0x3D 20:16:22.097 -> Unknown error at address 0x3E 20:16:22.097 -> Unknown error at address 0x3F 20:16:22.097 -> Unknown error at address 0x40 20:16:22.097 -> Unknown error at address 0x41 20:16:22.130 -> Unknown error at address 0x42 20:16:22.130 -> Unknown error at address 0x43 20:16:22.130 -> Unknown error at address 0x44 20:16:22.130 -> Unknown error at address 0x45 20:16:22.130 -> Unknown error at address 0x46 20:16:22.130 -> Unknown error at address 0x47 20:16:22.130 -> Unknown error at address 0x48 20:16:22.130 -> Unknown error at address 0x49 20:16:22.130 -> Unknown error at address 0x4A 20:16:22.130 -> Unknown error at address 0x4B 20:16:22.130 -> Unknown error at address 0x4C 20:16:22.130 -> Unknown error at address 0x4D 20:16:22.130 -> Unknown error at address 0x4E 20:16:22.130 -> Unknown error at address 0x4F 20:16:22.164 -> Unknown error at address 0x50 20:16:22.164 -> Unknown error at address 0x51 20:16:22.164 -> Unknown error at address 0x52 20:16:22.164 -> Unknown error at address 0x53 20:16:22.164 -> Unknown error at address 0x54 20:16:22.164 -> Unknown error at address 0x55 20:16:22.164 -> Unknown error at address 0x56 20:16:22.164 -> Unknown error at address 0x57 20:16:22.164 -> Unknown error at address 0x58 20:16:22.164 -> Unknown error at address 0x59 20:16:22.164 -> Unknown error at address 0x5A 20:16:22.164 -> Unknown error at address 0x5B 20:16:22.198 -> Unknown error at address 0x5C 20:16:22.198 -> Unknown error at address 0x5D 20:16:22.198 -> Unknown error at address 0x5E 20:16:22.198 -> Unknown error at address 0x5F 20:16:22.198 -> Unknown error at address 0x60 20:16:22.198 -> Unknown error at address 0x61 20:16:22.198 -> Unknown error at address 0x62 20:16:22.198 -> Unknown error at address 0x63 20:16:22.198 -> Unknown error at address 0x64 20:16:22.198 -> Unknown error at address 0x65 20:16:22.198 -> Unknown error at address 0x66 20:16:22.198 -> Unknown error at address 0x67 20:16:22.233 -> Unknown error at address 0x68 20:16:22.233 -> Unknown error at address 0x69 20:16:22.233 -> Unknown error at address 0x6A 20:16:22.233 -> Unknown error at address 0x6B 20:16:22.233 -> Unknown error at address 0x6C 20:16:22.233 -> Unknown error at address 0x6D 20:16:22.233 -> Unknown error at address 0x6E 20:16:22.233 -> Unknown error at address 0x6F 20:16:22.233 -> Unknown error at address 0x70 20:16:22.233 -> Unknown error at address 0x71 20:16:22.233 -> Unknown error at address 0x72 20:16:22.233 -> Unknown error at address 0x73 20:16:22.233 -> Unknown error at address 0x74 20:16:22.266 -> Unknown error at address 0x75 20:16:22.266 -> Unknown error at address 0x76 20:16:22.266 -> Unknown error at address 0x77 20:16:22.266 -> Unknown error at address 0x78 20:16:22.266 -> Unknown error at address 0x79 20:16:22.266 -> Unknown error at address 0x7A 20:16:22.266 -> Unknown error at address 0x7B 20:16:22.266 -> Unknown error at address 0x7C 20:16:22.266 -> Unknown error at address 0x7D 20:16:22.266 -> Unknown error at address 0x7E 20:16:22.266 -> No I2C devices found 20:16:22.266 ->

[bfaliszek]

Wygląda jakby BME280 było uszkodzone

[firemark]

Pytanie durne - czy dobrze podłączyłeś zasilanie? :)

[opennas]

Po pierwszej próbie nie byłem pewny czy jest sprawny BM280, więc zakupiłem kolejny zestaw. Z tego powodu trwało chwilę zanim odpowiedziałem.

Złożyłem z nowych części drugi egzemplarz Smogomierza i podłączyłem BM280 zgodnie z instrukcją 3X sprawdzając.

BM280 - NodeMcu V3

VCC - 3V GND - G SCL - D4 SDA - D3

Kod

// --------------------------------------
// i2c_scanner
//
// Version 1
//    This program (or code that looks like it)
//    can be found in many places.
//    For example on the Arduino.cc forum.
//    The original author is not know.
// Version 2, Juni 2012, Using Arduino 1.0.1
//     Adapted to be as simple as possible by Arduino.cc user Krodal
// Version 3, Feb 26  2013
//    V3 by louarnold
// Version 4, March 3, 2013, Using Arduino 1.0.3
//    by Arduino.cc user Krodal.
//    Changes by louarnold removed.
//    Scanning addresses changed from 0...127 to 1...119,
//    according to the i2c scanner by Nick Gammon
//    http://www.gammon.com.au/forum/?id=10896
// Version 5, March 28, 2013
//    As version 4, but address scans now to 127.
//    A sensor seems to use address 120.
// Version 6, November 27, 2015.
//    Added waiting for the Leonardo serial communication.
// 
//
// This sketch tests the standard 7-bit addresses
// Devices with higher bit address might not be seen properly.
//

#include <Wire.h>

void setup()
{
  Wire.begin();

  Serial.begin(115200);
  while (!Serial);             // Leonardo: wait for serial monitor
  Serial.println("\nI2C Scanner");
}

void loop()
{
  byte error, address;
  int nDevices;

  Serial.println("Scanning...");

  nDevices = 0;
  for(address = 1; address < 127; address++ ) 
  {
    // The i2c_scanner uses the return value of
    // the Write.endTransmisstion to see if
    // a device did acknowledge to the address.
    Wire.beginTransmission(address);
    error = Wire.endTransmission();

    if (error == 0)
    {
      Serial.print("I2C device found at address 0x");
      if (address<16) 
        Serial.print("0");
      Serial.print(address,HEX);
      Serial.println("  !");

      nDevices++;
    }
    else if (error==4) 
    {
      Serial.print("Unknown error at address 0x");
      if (address<16) 
        Serial.print("0");
      Serial.println(address,HEX);
    }    
  }
  if (nDevices == 0)
    Serial.println("No I2C devices found\n");
  else
    Serial.println("done\n");

  delay(5000);           // wait 5 seconds for next scan
}

[bfaliszek]

a sprawdź na D1 i D2? Jeśli samemu kompilujesz kod w ArduinoIDE to daj znać też jaką masz wersję ESP8266core najnowsza to 2.5.0 beta 3 i w tych betach może coś nie działać(np. SoftwareSerial).

[opennas]

Po odłączeniu D1 i D2 z projektu Smogomierz i podłączeniu BME280

VCC - 3V GND - G SCL - D2 SDA - D1

nawet gorzej bo nie wykrywał nic, a poprzednio na D3,D4 skanował adresy.

22:30:30.391 -> Scanning... 22:30:30.425 -> No I2C devices found 22:30:30.425 -> 22:30:35.402 -> Scanning... 22:30:35.435 -> No I2C devices found 22:30:35.435 ->

a poprzednio na D3,D4 skanował adresy.

20:16:21.928 -> Unknown error at address 0x01 ... 20:16:22.266 -> Unknown error at address 0x7E

ESP8266 mam teraz w wersji 2.4.2.

[bfaliszek]

To jeszcze ostatnie pytanie. Na pewno masz wybraną płytkę NodeMCU 1.0? To chyba jeszcze ostatnia opcja jaka została. Jeśli tak, to chyba masz po prostu wadliwe BME280, które nie działa.

[opennas]

Włączona opcja NodeMCU 1.0 (ESP-12E Module) i sprawdzałem dwa czujniki BME280. Jeszcze mam trzeci, ale muszę wlutować piny. Zakupiłem dwa pełne zestawy Smogomierza i testowałem na dwóch płytkach NodeMCU.

Kompilacja programu I2cScanner.ino dla testu I2C nie ma żadnego błędu :) Nadal nie odnaleziono I2C :(

[opennas]

Kabel USB mam podłączony do komputera z jednej a do NodeMCU z drugiej. Po zaprogramowaniu mogę oglądać monitor portu szeregowego, ale nie mam podłączonego zasilania Smogomierza w dedykowanym konektorze.

Wynik na porcie szeregowym:

19:41:27.985 -> Scanning...
19:41:27.985 -> Unknown error at address 0x01
19:41:27.985 -> Unknown error at address 0x02
19:41:27.985 -> Unknown error at address 0x03
19:41:27.985 -> Unknown error at address 0x04
19:41:27.985 -> Unknown error at address 0x05
19:41:27.985 -> Unknown error at address 0x06
19:41:27.985 -> Unknown error at address 0x07
19:41:27.985 -> Unknown error at address 0x08
19:41:28.019 -> Unknown error at address 0x09
19:41:28.019 -> Unknown error at address 0x0A
19:41:28.019 -> Unknown error at address 0x0B
19:41:28.019 -> Unknown error at address 0x0C
19:41:28.019 -> Unknown error at address 0x0D
19:41:28.019 -> Unknown error at address 0x0E
19:41:28.019 -> Unknown error at address 0x0F
19:41:28.019 -> Unknown error at address 0x10
19:41:28.019 -> Unknown error at address 0x11
19:41:28.019 -> Unknown error at address 0x12
19:41:28.019 -> Unknown error at address 0x13
19:41:28.019 -> Unknown error at address 0x14
19:41:28.019 -> Unknown error at address 0x15
19:41:28.052 -> Unknown error at address 0x16
19:41:28.052 -> Unknown error at address 0x17
19:41:28.052 -> Unknown error at address 0x18
19:41:28.052 -> Unknown error at address 0x19
19:41:28.052 -> Unknown error at address 0x1A
19:41:28.052 -> Unknown error at address 0x1B
19:41:28.052 -> Unknown error at address 0x1C
19:41:28.052 -> Unknown error at address 0x1D
19:41:28.052 -> Unknown error at address 0x1E
19:41:28.052 -> Unknown error at address 0x1F
19:41:28.052 -> Unknown error at address 0x20
19:41:28.052 -> Unknown error at address 0x21
19:41:28.086 -> Unknown error at address 0x22
19:41:28.086 -> Unknown error at address 0x23
19:41:28.086 -> Unknown error at address 0x24
19:41:28.086 -> Unknown error at address 0x25
19:41:28.086 -> Unknown error at address 0x26
19:41:28.086 -> Unknown error at address 0x27
19:41:28.086 -> Unknown error at address 0x28
19:41:28.086 -> Unknown error at address 0x29
19:41:28.086 -> Unknown error at address 0x2A
19:41:28.086 -> Unknown error at address 0x2B
19:41:28.086 -> Unknown error at address 0x2C
19:41:28.086 -> Unknown error at address 0x2D
19:41:28.121 -> Unknown error at address 0x2E
19:41:28.121 -> Unknown error at address 0x2F
19:41:28.121 -> Unknown error at address 0x30
19:41:28.121 -> Unknown error at address 0x31
19:41:28.121 -> Unknown error at address 0x32
19:41:28.121 -> Unknown error at address 0x33
19:41:28.121 -> Unknown error at address 0x34
19:41:28.121 -> Unknown error at address 0x35
19:41:28.121 -> Unknown error at address 0x36
19:41:28.121 -> Unknown error at address 0x37
19:41:28.121 -> Unknown error at address 0x38
19:41:28.121 -> Unknown error at address 0x39
19:41:28.121 -> Unknown error at address 0x3A
19:41:28.121 -> Unknown error at address 0x3B
19:41:28.154 -> Unknown error at address 0x3C
19:41:28.154 -> Unknown error at address 0x3D
19:41:28.154 -> Unknown error at address 0x3E
19:41:28.154 -> Unknown error at address 0x3F
19:41:28.154 -> Unknown error at address 0x40
19:41:28.154 -> Unknown error at address 0x41
19:41:28.154 -> Unknown error at address 0x42
19:41:28.154 -> Unknown error at address 0x43
19:41:28.154 -> Unknown error at address 0x44
19:41:28.154 -> Unknown error at address 0x45
19:41:28.154 -> Unknown error at address 0x46
19:41:28.154 -> Unknown error at address 0x47
19:41:28.187 -> Unknown error at address 0x48
19:41:28.187 -> Unknown error at address 0x49
19:41:28.187 -> Unknown error at address 0x4A
19:41:28.187 -> Unknown error at address 0x4B
19:41:28.187 -> Unknown error at address 0x4C
19:41:28.187 -> Unknown error at address 0x4D
19:41:28.187 -> Unknown error at address 0x4E
19:41:28.187 -> Unknown error at address 0x4F
19:41:28.187 -> Unknown error at address 0x50
19:41:28.187 -> Unknown error at address 0x51
19:41:28.187 -> Unknown error at address 0x52
19:41:28.187 -> Unknown error at address 0x53
19:41:28.187 -> Unknown error at address 0x54
19:41:28.221 -> Unknown error at address 0x55
19:41:28.221 -> Unknown error at address 0x56
19:41:28.221 -> Unknown error at address 0x57
19:41:28.221 -> Unknown error at address 0x58
19:41:28.221 -> Unknown error at address 0x59
19:41:28.221 -> Unknown error at address 0x5A
19:41:28.221 -> Unknown error at address 0x5B
19:41:28.221 -> Unknown error at address 0x5C
19:41:28.221 -> Unknown error at address 0x5D
19:41:28.221 -> Unknown error at address 0x5E
19:41:28.221 -> Unknown error at address 0x5F
19:41:28.221 -> Unknown error at address 0x60
19:41:28.255 -> Unknown error at address 0x61
19:41:28.255 -> Unknown error at address 0x62
19:41:28.255 -> Unknown error at address 0x63
19:41:28.255 -> Unknown error at address 0x64
19:41:28.255 -> Unknown error at address 0x65
19:41:28.255 -> Unknown error at address 0x66
19:41:28.255 -> Unknown error at address 0x67
19:41:28.255 -> Unknown error at address 0x68
19:41:28.255 -> Unknown error at address 0x69
19:41:28.255 -> Unknown error at address 0x6A
19:41:28.255 -> Unknown error at address 0x6B
19:41:28.255 -> Unknown error at address 0x6C
19:41:28.290 -> Unknown error at address 0x6D
19:41:28.290 -> Unknown error at address 0x6E
19:41:28.290 -> Unknown error at address 0x6F
19:41:28.290 -> Unknown error at address 0x70
19:41:28.290 -> Unknown error at address 0x71
19:41:28.290 -> Unknown error at address 0x72
19:41:28.290 -> Unknown error at address 0x73
19:41:28.290 -> Unknown error at address 0x74
19:41:28.290 -> Unknown error at address 0x75
19:41:28.290 -> Unknown error at address 0x76
19:41:28.290 -> Unknown error at address 0x77
19:41:28.290 -> Unknown error at address 0x78
19:41:28.290 -> Unknown error at address 0x79
19:41:28.290 -> Unknown error at address 0x7A
19:41:28.325 -> Unknown error at address 0x7B
19:41:28.325 -> Unknown error at address 0x7C
19:41:28.325 -> Unknown error at address 0x7D
19:41:28.325 -> Unknown error at address 0x7E
19:41:28.325 -> No I2C devices found
19:41:28.325 -> 

Pomyślałem, że może aby działała I2C muszę dodatkowo podłączyć zasilanie i wtedy dopiero pojawi się zasilanie i będzie działać I2C?

Po po podłączeniu zasilania dodatkowo do zestawu i nadal podłączonym USD do NodeMCU wynik skanowania jesy tylko

19:40:26.206 -> Scanning...
19:40:26.240 -> No I2C devices found
19:40:26.240 -> 

Kombinuje dalej ale nie mogę dojść przyczyny braku działania BM280.

[bfaliszek]

masz po prostu wadliwe BME280, które nie działa.

🤷🏻‍♂️

[opennas]

Próbowałem już dwa BME280. Dzisiaj doszła trzecia sztuka BM280. Zaraz ją przygotuje i podłączę.

[opennas]

Teraz podłączyłem 3 sztukę BME280 i to samo :( Zakupiłem w Botland i teraz po sprawdzeniu 3 sztuki nie pozostaje mi nic innego jak napisać reklamacje. Mało prawdopodobne, aby w trzech wysyłkach tylko BME280 było 3X wadliwe.

[opennas]

Sukces, po resecie NodeMCU oraz ustawieniu SSID na sztywno. Zadziałał BME280 :)

Ciągle zastanawiam się co było przyczyną tego... (wygląda na to, że nie sam czujnik)

{ "device_name": "Smogomierz-C68890", "pm1": 19, "pm25": 31, "pm10": 37, "temperature": 23.3, "pressure": 1022, "humidity": 25, "dewpoint": 8.306054 }