RFM69 an MQTT does not work



  • Hello, everybody,

    I'm trying to get my sensor network up and running right now. The data is sent from the sensors (RFM69 transmitter) to a Raspberry pi (RFM69 receiver). On the Raspberry runs a MQTT server (works). I have connected the receiver as described in the manual (wiring is correct) and installed the MQTT gateway. Then I started it and this came out:

    
    Aug 09 18:57:40 INFO  Starting gateway...
    Aug 09 18:57:40 INFO  Protocol version - 2.3.0
    Aug 09 18:57:40 DEBUG MCO:BGN:INIT GW,CP=RPNGL---,VER=2.3.0
    Aug 09 18:57:40 DEBUG TSF:LRT:OK
    Aug 09 18:57:40 DEBUG TSM:INIT
    Aug 09 18:57:40 DEBUG TSF:WUR:MS=0
    Aug 09 18:57:40 DEBUG TSM:INIT:TSP OK
    Aug 09 18:57:40 DEBUG TSM:INIT:GW MODE
    Aug 09 18:57:40 DEBUG TSM:READY:ID=0,PAR=0,DIS=0
    Aug 09 18:57:40 DEBUG MCO:REG:NOT NEEDED
    Aug 09 18:57:40 DEBUG MCO:BGN:STP
    Aug 09 18:57:40 DEBUG MCO:BGN:INIT OK,TSP=1
    Aug 09 18:57:40 DEBUG GWT:RMQ:MQTT RECONNECT
    Aug 09 18:57:40 DEBUG connected to 127.0.0.1
    Aug 09 18:57:40 DEBUG GWT:RMQ:MQTT CONNECTED
    Aug 09 18:57:40 DEBUG GWT:TPS:TOPIC=mysensors-out/0/255/0/0/18,MSG SENT
    

    The sketch on the Arduino looks like this (#define MY_RFM69_NEW_DRIVER I integrated):

    // if you uncomment this, you can get test and debug updates about everything the sensor is doing by using the serial monitor tool.
    #define MY_DEBUG 
    
    // Enable and select radio type attached
    #define MY_RFM69_NEW_DRIVER
      #define MY_RFM69_FREQUENCY (RFM69_433MHZ)
      #define MY_NODE_ID 20
      #define MY_RADIO_RFM69                         // 433Mhz transmitter and reveiver.
    
    // Do you want this sensor to also be a repeater?
    // #define MY_REPEATER_FEATURE                    // Just remove the two slashes at the beginning of this line to also enable this sensor to act as a repeater for other sensors. If this node is on battery power, you probably shouldn't enable this.
    
    // Are you using this sensor on battery power?
    // #define BATTERY_POWERED                        // Just remove the two slashes at the beginning of this line if your node is battery powered. It will then go into deep sleep as much as possible. While it's sleeping it can't work as a repeater!
    
    // Would you like the sensor to generate a weather forecast based on the barometric pressure? 
    //#define GENERATE_FORECAST        // Just remove the two slashes at the beginning of this line to enable this feature.
    
    
    // LIBRARIES
    #include <SPI.h>                                  // A communication backbone, the Serial Peripheral Interface.
    #include <MySensors.h>                            // The MySensors library. Hurray!
    #include <Wire.h>                                 // Enables the Wire communication protocol.
    #include <BME280_MOD-1022.h>                      // Bosch BME280 Embedded Adventures MOD-1022 weather multi-sensor Arduino code, written originally by Embedded Adventures. https://github.com/embeddedadventures/BME280
    
    
    // VARIABLES YOU CAN CHANGE
    const float ALTITUDE = 14;                        // Change this value to your location's altitude (in m). Use your smartphone GPS to get an accurate value, or use an online map.
    unsigned long BME280measurementInterval = 60000;  // Sleep time between reads for the BME sensor (in ms). Keep this value at 60000 if you have enabled the forecast feature, as the forecast algorithm needs a sample every minute.
    #define COMPARE_TEMP 1                            // Send temperature only if it changed? 1 = Yes 0 = No. Can save battery.
    float tempThreshold = 0.1;                        // How big a temperature difference has to minimally  be before an update is sent. Makes the sensor less precise, but also less jittery, and can save battery.
    #define COMPARE_HUM 1                             // Send temperature only if changed? 1 = Yes 0 = No. Can save battery.
    float humThreshold = 0.1;                         // How big a humidity difference has to minimally be before an update is sent. Makes the sensor less precise, but also less jittery, and can save battery.
    #define COMPARE_BARO 1                            // Send temperature only if changed? 1 = Yes 0 = No. Can save battery.
    float presThreshold = 0.1;                        // How big a barometric difference has to minimally be before an update is sent. Makes the sensor less precise, but also less jittery, and can save battery.
                
    
    //VARIABLES YOU PROBABLY SHOULDN'T CHANGE
    #define TEMP_CHILD_ID 0       // for MySensors. Within this node each sensortype should have its own ID number.
    #define HUM_CHILD_ID 1        // for MySensors. Within this node each sensortype should have its own ID number.
    #define BARO_CHILD_ID 2       // for MySensors. Within this node each sensortype should have its own ID number.
    float lastTemperature = -1;     // Stores the previous measurement, so it can be compared with a new measurement.
    float lastHumidity = -1;      // Stores the previous measurement, so it can be compared with a new measurement.
    float lastPressure = -1;      // Stores the previous measurement, so it can be compared with a new measurement.
    unsigned long BME280measurementSleepTime = 0;   // variable to store the calculated Sleep time if the node is battery powered.
    bool metric = true;       // Variable that stores if the sensor will output the temperature in Fahrenheit of Celsius. The gateway sends this preference to the node, so you dont need to change it here.
    bool receivedConfig = false;      // The MySensors gateway will tell the node if it should output in metric or not.
    
    #define CONVERSION_FACTOR (1.0/10.0)    // used by forecast algorithm to convert from Pa to kPa, by dividing hPa by 10.
    
    #ifdef GENERATE_FORECAST      //  Below you will find a lot of variables used by the forecast algorithm.
    const char *weather[] = { "stable", "sunny", "cloudy", "unstable", "thunderstorm", "unknown" };
    enum FORECAST
    {
      STABLE = 0,             // "Stable Weather Pattern"
      SUNNY = 1,              // "Slowly rising Good Weather", "Clear/Sunny "
      CLOUDY = 2,             // "Slowly falling L-Pressure ", "Cloudy/Rain "
      UNSTABLE = 3,           // "Quickly rising H-Press",     "Not Stable"
      THUNDERSTORM = 4,         // "Quickly falling L-Press",    "Thunderstorm"
      UNKNOWN = 5             // "Unknown (More Time needed)
    };
    int lastForecast = -1;        // Stores the previous forecast, so it can be compared with a new forecast.
    const int LAST_SAMPLES_COUNT = 5;
    float lastPressureSamples[LAST_SAMPLES_COUNT];
    int minuteCount = 0;        // Helps the forecst algorithm keep time.
    bool firstRound = true;       // Helps the forecast algorithm recognise if the sensor has just been powered up.
    float pressureAvg;        // Average value is used in forecast algorithm.
    float pressureAvg2;       // Average after 2 hours is used as reference value for the next iteration.
    float dP_dt;          // Pressure delta over time
    #endif
    
    // MYSENSORS COMMUNICATION VARIABLES
    MyMessage temperatureMsg(TEMP_CHILD_ID, V_TEMP);
    MyMessage humidityMsg(HUM_CHILD_ID, V_HUM);
    MyMessage pressureMsg(BARO_CHILD_ID, V_PRESSURE);
    #ifdef GENERATE_FORECAST
    MyMessage forecastMsg(BARO_CHILD_ID, V_FORECAST);
    #endif
    
    
    void setup() {
      Wire.begin(); // Wire.begin(sda, scl) // starts the wire communication protocol, used to chat with the BME280 sensor.
      Serial.begin(115200); // for serial debugging over USB.
      Serial.println("Hello world, I am a sensor node.");
    
    #ifdef BATTERY_POWERED // If the node is battery powered, we'll let Sleep take over the scheduling.
       BME280measurementSleepTime = BME280measurementInterval;
       BME280measurementInterval = 0; // When the Arduino is asleep, millis doesn't increment anymore (time stops as it were). To fix this, we'll set the measurement interval time to 1, so that when the arduino wakes up it will immediately try to measure again.
    #endif
    
    }
    
    
    void presentation()  {
      // Send the sketch version information to the gateway and Controller
      sendSketchInfo("BME280 Sensor", "1.1");
    
      // Tell the MySensors gateway what kind of sensors this node has, and what their ID's on the node are, as defined in the code above.
      present(BARO_CHILD_ID, S_BARO);
      present(TEMP_CHILD_ID, S_TEMP);
      present(HUM_CHILD_ID, S_HUM);
    }
    
    
    void loop() {
    
      // You should not change these variables:
      static unsigned long previousBME280Millis = 0;  // Used to remember the time that the BME280 sensor was asked for a measurement.
      unsigned long currentMillis = millis();         // The time since the sensor started, counted in milliseconds. This script tries to avoid using the Sleep function, so that it could at the same time be a MySensors repeater.
      static boolean BME280shouldAsk = true;          // This is true when the time is right for a new measurement to be made.
      static boolean BME280justAsked = false;         // This indicates whether we have just asked the sensor module for a measurement, so the receiving part of the code (part 2) should be primed. This two-part construction helps to bridge the time where the BME280 module is busy, without blocking the entire node from doing anything else (like being a repeater, or working with other connected sensor modules).
    
    
      // PART 1. If enough time has passed, a new measurement should be taken:
      if (BME280shouldAsk == true && currentMillis - previousBME280Millis >= BME280measurementInterval) {
        previousBME280Millis = currentMillis; // store the current time as the previous measurement start time.
        BME280shouldAsk = false;
        Serial.println("");
        Serial.println("BME280 - Requesting new data from sensor module.");
        BME280.readCompensationParams();    // Need to read the NVM compensation parameters.
    
    #ifdef BATTERY_POWERED
        // After taking the measurement the chip goes back to sleep. This code is only enabled if you enabled BATTERY POWERED at the top of this script.
        // Oversampling settings (os1x, os2x, os4x, os8x or os16x).
        BME280.writeFilterCoefficient(fc_16);       // IIR Filter coefficient, higher numbers avoid sudden changes to be accounted for (such as slamming a door)
        BME280.writeOversamplingPressure(os16x);    // pressure x16
        BME280.writeOversamplingTemperature(os8x);  // temperature x8
        BME280.writeOversamplingHumidity(os8x);     // humidity x8
        BME280.writeMode(smForced);                 // Forced sample.  After taking the measurement the chip goes back to sleep.
    #else
        // Normal mode for regular automatic samples
        BME280.writeStandbyTime(tsb_0p5ms);         // tsb = 0.5ms
        BME280.writeFilterCoefficient(fc_16);       // IIR Filter coefficient 16
        BME280.writeOversamplingPressure(os16x);    // pressure x16
        BME280.writeOversamplingTemperature(os8x);  // temperature x8
        BME280.writeOversamplingHumidity(os8x);     // humidity x8
        BME280.writeMode(smNormal);
    #endif
      
        // As we exit part 1, in theory BME280.isMeasuring() should now be true.
        BME280justAsked = true;   
      }
    
    
      // Part 2. This will trigger if the sensor has just been asked for a measurement, and is also just done figuring out those measurements.
      if(BME280justAsked == true && BME280.isMeasuring() == false) { // 
        BME280justAsked = false; // makes sure we don't do this part again in the next pass through the main loop.
        Serial.println("BME280 - Sensor module has some new values ready:");
          
        // Read out the data - must do this before calling the getxxxxx routines
        BME280.readMeasurements();
      
        float temperature = BME280.getTemperatureMostAccurate();                    // Must get the temperature first.
        float humidity = BME280.getHumidityMostAccurate();        // Get the humidity.
        float pressure_local = BME280.getPressureMostAccurate();                    // Get pressure at current location
        float pressure = pressure_local/pow((1.0 - ( ALTITUDE / 44330.0 )), 5.255); // Adjust to sea level pressure using user altitude
    #ifdef GENERATE_FORECAST      
        int forecast = sample(pressure);            // Run the forecast function with a new pressure update.
    #endif
    
        if (!metric) {
          // Convert temperature to fahrenheit
          temperature = temperature * 9.0 / 5.0 + 32.0;
        }
    
        // Useful for debugging
        Serial.print("BME280 - Temperature = ");
        Serial.print(temperature);
        Serial.println(metric ? " °C" : " °F");
        Serial.print("BME280 - Humidity = ");
        Serial.print(humidity);
        Serial.println(" %");
        Serial.print("BME280 - Pressure = ");
        Serial.print(pressure);
        Serial.println(" hPa");
    #ifdef GENERATE_FORECAST      
        Serial.print("BME280 - Forecast = ");
        Serial.println(weather[forecast]);
    #endif
    
        // Now, let's send the measurements to the gateway.
    
        // Send temperature
        if (COMPARE_TEMP == 1 && abs(temperature - lastTemperature) < tempThreshold) { // is the temperature difference bigger than the threshold?
          Serial.print(temperature - lastTemperature);
          Serial.print("- BME280 - Temperature difference too small, so not sending the new measurement to the gateway.\n");
        } else {
          Serial.print("BME280 - Sending the new temperature to the gateway.\n");
          send(temperatureMsg.set(temperature, 2));
          lastTemperature = temperature; // Save new temperatures to be able to compare in the next round.
        } 
    
        // Send humidity
        if (COMPARE_TEMP == 1 && abs(humidity - lastHumidity) < humThreshold) { // is the humidity difference bigger than the threshold?
          Serial.print(humidity - lastHumidity);
          Serial.println("- BME280 - Humidity difference too small, so not sending the new measurement to the gateway.");
        } else {
          Serial.println("BME280 - Sending the new humidity to the gateway.");
          send(humidityMsg.set(humidity, 2));
          lastHumidity = humidity; // Save new humidity to be able to compare in the next round.
        }
    
        // Send pressure
        if (COMPARE_TEMP == 1 && abs(pressure - lastPressure) < presThreshold) { // is the pressure difference bigger than the threshold?
          Serial.print(pressure - lastPressure);
          Serial.println("- BME280 - Pressure difference too small, so not sending the new measurement to the gateway.");
        } else {
          Serial.println("BME280 - Sending the new pressure to the gateway.");
          send(pressureMsg.set(pressure, 2));
          lastPressure = pressure; // Save new pressure to be able to compare in the next round.
        }
          
    #ifdef GENERATE_FORECAST
        // Send forecast
        if (forecast != lastForecast) {
          Serial.println("BME280 - Sending the latest forecast to the gateway.");      
          send(forecastMsg.set(weather[forecast]));
          lastForecast = forecast;
        }
    #endif 
    
      Serial.println("BME280 - Measurement complete. Going to wait until next measurement.");
      BME280shouldAsk = true; // Ready for the new round.
      }
    
    #ifdef BATTERY_POWERED
      // This code will only be included in the sketch if the BATTERY POWERED feature is enabled.
      if(BME280shouldAsk == true && BME280justAsked == false) { // Both parts are done, so we can let the sensor sleep again.
        unsigned long quicktimecheck = millis(); // To check how much time has passed since the beginning of being awake, and then calculate from that how long to sleep until the next intended measuring time, we need to know how many milliseconds have passed.
        unsigned long sleeptime = BME280measurementSleepTime - (quicktimecheck - previousBME280Millis); // How much time has passed already during the calculating? Subtract that from the intended interval time.
        Serial.println("BME280 - zzzzZZZZzzzzZZZZzzzz");
        sleep (sleeptime);
        Serial.println("BME280 - Waking up.");
      }
    #endif
    
    } // end of main loop.
    
    
    
    #ifdef GENERATE_FORECAST
    // These functions are only included if the forecast function is enables. The are used to generate a weater prediction by checking if the barometric pressure is rising or falling over time.
    
    float getLastPressureSamplesAverage()
    {
      float lastPressureSamplesAverage = 0;
      for (int i = 0; i < LAST_SAMPLES_COUNT; i++) {
        lastPressureSamplesAverage += lastPressureSamples[i];
      }
      lastPressureSamplesAverage /= LAST_SAMPLES_COUNT;
    
      return lastPressureSamplesAverage;
    }
    
    
    // Forecast algorithm found here
    // http://www.freescale.com/files/sensors/doc/app_note/AN3914.pdf
    // Pressure in hPa -->  forecast done by calculating kPa/h
    int sample(float pressure) {
      // Calculate the average of the last n minutes.
      int index = minuteCount % LAST_SAMPLES_COUNT;
      lastPressureSamples[index] = pressure;
    
      minuteCount++;
      if (minuteCount > 185) {
        minuteCount = 6;
      }
    
      if (minuteCount == 5) {
        pressureAvg = getLastPressureSamplesAverage();
      }
      else if (minuteCount == 35) {
        float lastPressureAvg = getLastPressureSamplesAverage();
        float change = (lastPressureAvg - pressureAvg) * CONVERSION_FACTOR;
        if (firstRound) { // first time initial 3 hour 
          dP_dt = change * 2; // note this is for t = 0.5hour
        }
        else {
          dP_dt = change / 1.5; // divide by 1.5 as this is the difference in time from 0 value.
        }
      }
      else if (minuteCount == 65) {
        float lastPressureAvg = getLastPressureSamplesAverage();
        float change = (lastPressureAvg - pressureAvg) * CONVERSION_FACTOR;
        if (firstRound) { //first time initial 3 hour
          dP_dt = change; //note this is for t = 1 hour
        }
        else {
          dP_dt = change / 2; //divide by 2 as this is the difference in time from 0 value
        }
      }
      else if (minuteCount == 95) {
        float lastPressureAvg = getLastPressureSamplesAverage();
        float change = (lastPressureAvg - pressureAvg) * CONVERSION_FACTOR;
        if (firstRound) { // first time initial 3 hour
          dP_dt = change / 1.5; // note this is for t = 1.5 hour
        }
        else {
          dP_dt = change / 2.5; // divide by 2.5 as this is the difference in time from 0 value
        }
      }
      else if (minuteCount == 125) {
        float lastPressureAvg = getLastPressureSamplesAverage();
        pressureAvg2 = lastPressureAvg; // store for later use.
        float change = (lastPressureAvg - pressureAvg) * CONVERSION_FACTOR;
        if (firstRound) { // first time initial 3 hour
          dP_dt = change / 2; // note this is for t = 2 hour
        }
        else {
          dP_dt = change / 3; // divide by 3 as this is the difference in time from 0 value
        }
      }
      else if (minuteCount == 155) {
        float lastPressureAvg = getLastPressureSamplesAverage();
        float change = (lastPressureAvg - pressureAvg) * CONVERSION_FACTOR;
        if (firstRound) { // first time initial 3 hour
          dP_dt = change / 2.5; // note this is for t = 2.5 hour
        } 
        else {
          dP_dt = change / 3.5; // divide by 3.5 as this is the difference in time from 0 value
        }
      }
      else if (minuteCount == 185) {
        float lastPressureAvg = getLastPressureSamplesAverage();
        float change = (lastPressureAvg - pressureAvg) * CONVERSION_FACTOR;
        if (firstRound) { // first time initial 3 hour
          dP_dt = change / 3; // note this is for t = 3 hour
        } 
        else {
          dP_dt = change / 4; // divide by 4 as this is the difference in time from 0 value
        }
        pressureAvg = pressureAvg2; // Equating the pressure at 0 to the pressure at 2 hour after 3 hours have past.
        firstRound = false; // flag to let you know that this is on the past 3 hour mark. Initialized to 0 outside main loop.
      }
    
      int forecast = UNKNOWN;
      if (minuteCount < 35 && firstRound) { //if time is less than 35 min on the first 3 hour interval.
        forecast = UNKNOWN;
      }
      else if (dP_dt < (-0.25)) {
        forecast = THUNDERSTORM;
      }
      else if (dP_dt > 0.25) {
        forecast = UNSTABLE;
      }
      else if ((dP_dt > (-0.25)) && (dP_dt < (-0.05))) {
        forecast = CLOUDY;
      }
      else if ((dP_dt > 0.05) && (dP_dt < 0.25))
      {
        forecast = SUNNY;
      }
      else if ((dP_dt >(-0.05)) && (dP_dt < 0.05)) {
        forecast = STABLE;
      }
      else {
        forecast = UNKNOWN;
      }
    
      // uncomment when debugging
      //Serial.print(F("BME280 - Forecast at minute "));
      //Serial.print(minuteCount);
      //Serial.print(F(" dP/dt = "));
      //Serial.print(dP_dt);
      //Serial.print(F("kPa/h --> "));
      //Serial.println(weather[forecast]);
    
      return forecast;
    }
    #endif
    

    The sending also works, I tested that by using a 2nd Arduino as receiver. I also see in the console that the transmitter works in principle.

     __  __       ____
    |  \/  |_   _/ ___|  ___ _ __  ___  ___  _ __ ___
    | |\/| | | | \___ \ / _ \ `_ \/ __|/ _ \| `__/ __|
    | |  | | |_| |___| |  __/ | | \__ \  _  | |  \__ \
    |_|  |_|\__, |____/ \___|_| |_|___/\___/|_|  |___/
            |___/                      2.3.0
    
    16 MCO:BGN:INIT NODE,CP=RPNNA---,VER=2.3.0
    26 TSM:INIT
    28 TSF:WUR:MS=0
    30 TSM:INIT:TSP OK
    32 TSM:INIT:STATID=20
    34 TSF:SID:OK,ID=20
    36 TSM:FPAR
    540 TSF:MSG:SEND,20-20-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
    2549 !TSM:FPAR:NO REPLY
    2551 TSM:FPAR
    3055 TSF:MSG:SEND,20-20-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
    5064 !TSM:FPAR:NO REPLY
    5066 TSM:FPAR
    5570 TSF:MSG:SEND,20-20-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
    7579 !TSM:FPAR:NO REPLY
    7581 TSM:FPAR
    8085 TSF:MSG:SEND,20-20-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
    10094 !TSM:FPAR:FAIL
    10096 TSM:FAIL:CNT=1
    10098 TSM:FAIL:DIS
    10100 TSF:TDI:TSL
    

    Unfortunately I don't see any sensor data in the MQTT. Only the version number of the gateway is sent.

    Do you have any idea where the mistake is?



  • I think the problem are the different ID Numbers. The Gateway has 0/255/0/0/18 and the Sensor 20-20-255-255. Or am I wrong? If not how can I change them?


  • Hardware Contributor

    @Maschler
    could you show us a picture of your gw so we can see how it looks, same for the node, plz ?
    for the moment it seems your gw doesn't receive anything (btw i've no xp with rpi gw).

    id are fine, id=0 is for gw, and id=20 is your node (255 is broadcast)


  • Admin

    @Maschler

    Looking at the logparser then it seems that your node have trouble reaching the gateway

    Have you read this troubleshooting guide?

    How do you power the radio (both gateway, and sensor node)? Is the power-supply adequately decoupled with capacitors around the radio?


 

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