problem with Dallas temperature



  • hello,
    I have problems with my 1-wire node, so I used two buses (pin2 and pin3).
    all my temperatures are visible but some have the same id.

    /**
    * The MySensors Arduino library handles the wireless radio link and protocol
    * between your home built sensors/actuators and HA controller of choice.
    * The sensors forms a self healing radio network with optional repeaters. Each
    * repeater and gateway builds a routing tables in EEPROM which keeps track of the
    * network topology allowing messages to be routed to nodes.
    *
    * Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
    * Copyright (C) 2013-2019 Sensnology AB
    * Full contributor list: https://github.com/mysensors/MySensors/graphs/contributors
    *
    * Documentation: http://www.mysensors.org
    * Support Forum: http://forum.mysensors.org
    *
    * This program is free software; you can redistribute it and/or
    * modify it under the terms of the GNU General Public License
    * version 2 as published by the Free Software Foundation.
    *
    *******************************
    *
    * DESCRIPTION
    * The ArduinoGateway prints data received from sensors on the serial link.
    * The gateway accepts input on serial which will be sent out on radio network.
    *
    * The GW code is designed for Arduino Nano 328p / 16MHz
    *
    * Wire connections (OPTIONAL):
    * - Inclusion button should be connected between digital pin 3 and GND
    * - RX/TX/ERR leds need to be connected between +5V (anode) and digital pin 6/5/4 with resistor 270-330R in a series
    *
    * LEDs (OPTIONAL):
    * - To use the feature, uncomment any of the MY_DEFAULT_xx_LED_PINs
    * - RX (green) - blink fast on radio message received. In inclusion mode will blink fast only on presentation received
    * - TX (yellow) - blink fast on radio message transmitted. In inclusion mode will blink slowly
    * - ERR (red) - fast blink on error during transmission error or receive crc error
    *
    */
    
    // Enable debug prints to serial monitor
    #define MY_DEBUG
    
    
    // Enable and select radio type attached
    //#define MY_RADIO_RF24
    //#define MY_RADIO_NRF5_ESB
    //#define MY_RADIO_RFM69
    //#define MY_RADIO_RFM95
    
    // Set LOW transmit power level as default, if you have an amplified NRF-module and
    // power your radio separately with a good regulator you can turn up PA level.
    //#define MY_RF24_PA_LEVEL RF24_PA_LOW
    
    // Enable serial gateway
    #define MY_GATEWAY_SERIAL
    
    // Define a lower baud rate for Arduinos running on 8 MHz (Arduino Pro Mini 3.3V & SenseBender)
    #if F_CPU == 8000000L
    #define MY_BAUD_RATE 38400
    #endif
    
    // Enable inclusion mode
    #define MY_INCLUSION_MODE_FEATURE
    // Enable Inclusion mode button on gateway
    //#define MY_INCLUSION_BUTTON_FEATURE
    
    // Inverses behavior of inclusion button (if using external pullup)
    //#define MY_INCLUSION_BUTTON_EXTERNAL_PULLUP
    
    // Set inclusion mode duration (in seconds)
    #define MY_INCLUSION_MODE_DURATION 60
    // Digital pin used for inclusion mode button
    //#define MY_INCLUSION_MODE_BUTTON_PIN  3
    
    // Set blinking period
    #define MY_DEFAULT_LED_BLINK_PERIOD 300
    
    // Inverses the behavior of leds
    //#define MY_WITH_LEDS_BLINKING_INVERSE
    
    // Flash leds on rx/tx/err
    // Uncomment to override default HW configurations
    //#define MY_DEFAULT_ERR_LED_PIN 4  // Error led pin
    //#define MY_DEFAULT_RX_LED_PIN  6  // Receive led pin
    //#define MY_DEFAULT_TX_LED_PIN  5  // the PCB, on board LED
    
    #include <MySensors.h>  
    #include <DallasTemperature.h>
    #include <OneWire.h>
    
    #define COMPARE_TEMP 1 // Send temperature only if changed? 1 = Yes 0 = No
    
    #define ONE_WIRE_BUS3 3 // Pin where dallase sensor is connected 
    #define ONE_WIRE_BUS2 2 // Pin where dallase sensor is connected 
    #define MAX_ATTACHED_DS18B20 16
    unsigned long SLEEP_TIME = 30000; // Sleep time between reads (in milliseconds)
    OneWire oneWire3(ONE_WIRE_BUS3); // Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
    OneWire oneWire2(ONE_WIRE_BUS2);
    
    DallasTemperature sensors3(&oneWire3); // Pass the oneWire reference to Dallas Temperature. 
    DallasTemperature sensors2(&oneWire2);
    
    float lastTemperature3[MAX_ATTACHED_DS18B20];
    float lastTemperature2[MAX_ATTACHED_DS18B20];
    int numSensors3=0;
    int numSensors2=0;
    bool receivedConfig = false;
    bool metric = true;
    // Initialize temperature message
    MyMessage msg3(0,V_TEMP);
    MyMessage msg2(0,V_TEMP);
    
    void before()
    {
      // Startup up the OneWire library
      sensors3.begin();
      sensors2.begin();
    }
    
    void setup()  
    { 
      // requestTemperatures() will not block current thread
      sensors3.setWaitForConversion(false);
      sensors2.setWaitForConversion(false);
    }
    
    void presentation() {
      // Send the sketch version information to the gateway and Controller
      sendSketchInfo("Temperature Sensor", "1.1");
    
      // Fetch the number of attached temperature sensors  
      numSensors3 = sensors3.getDeviceCount();
      numSensors2 = sensors2.getDeviceCount();
      // Present all sensors to controller
      for (int i=0; i<numSensors3 && i<MAX_ATTACHED_DS18B20; i++) {   
         present(i, S_TEMP);
      }
      for (int j=0; j<numSensors2 && j<MAX_ATTACHED_DS18B20; j++) {   
         present(j, S_TEMP);
      }
    }
    
    void loop()     
    {     
      // Fetch temperatures from Dallas sensors
      sensors3.requestTemperatures();
      sensors2.requestTemperatures();
    
      // query conversion time and sleep until conversion completed
      int16_t conversionTime = sensors3.millisToWaitForConversion(sensors3.getResolution());
      // sleep() call can be replaced by wait() call if node need to process incoming messages (or if node is repeater)
      sleep(conversionTime);
    
    // query conversion time and sleep until conversion completed
      int16_t conversionTime2 = sensors2.millisToWaitForConversion(sensors2.getResolution());
      // sleep() call can be replaced by wait() call if node need to process incoming messages (or if node is repeater)
      sleep(conversionTime2);
    
      // Read temperatures and send them to controller 
      for (int i=0; i<numSensors3 && i<MAX_ATTACHED_DS18B20; i++) {
     
        // Fetch and round temperature to one decimal
        float temperature = static_cast<float>(static_cast<int>((getControllerConfig().isMetric?sensors3.getTempCByIndex(i):sensors3.getTempFByIndex(i)) * 10.)) / 10.;
     
        // Only send data if temperature has changed and no error
        #if COMPARE_TEMP == 1
        if (lastTemperature3[i] != temperature && temperature != -127.00 && temperature != 85.00) {
        #else
        if (temperature != -127.00 && temperature != 85.00) {
        #endif
     
          // Send in the new temperature
          send(msg3.setSensor(i).set(temperature,1));
          // Save new temperatures for next compare
          lastTemperature3[i]=temperature;
        }
      }
      
    
      // Read temperatures and send them to controller 
      for (int j=0; j<numSensors2 && j<MAX_ATTACHED_DS18B20; j++) {
     
        // Fetch and round temperature to one decimal
        float temperature2 = static_cast<float>(static_cast<int>((getControllerConfig().isMetric?sensors2.getTempCByIndex(j):sensors2.getTempFByIndex(j)) * 10.)) / 10.;
     
        // Only send data if temperature has changed and no error
        #if COMPARE_TEMP == 1
        if (lastTemperature2[j] != temperature2 && temperature2 != -127.00 && temperature2 != 85.00) {
        #else
        if (temperature2 != -127.00 && temperature != 85.00) {
        #endif
     
          // Send in the new temperature
          send(msg2.setSensor(j).set(temperature2,1));
          // Save new temperatures for next compare
          lastTemperature2[j]=temperature2;
        }
      }
      sleep(SLEEP_TIME);
    }
    
    

    Capture.PNG

    for me the first 2 lines and the last two are different probes but with the same id.
    how can I have a single id ?
    thanks



  • If you have two nodes with the same ID, the MySensors system can not work good. You solve this by clearing the EEPROM, see https://www.mysensors.org/build/debug at least for one of the nodes. After this, the gateway will send a new node id to the node.



  • hello,
    I just deleted the eeprom but I still have the problem.

    Capture.PNG


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