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  1. Home
  2. Troubleshooting
  3. multiple DS18D20 does not report temperature

multiple DS18D20 does not report temperature

Scheduled Pinned Locked Moved Troubleshooting
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  • hekH Offline
    hekH Offline
    hek
    Admin
    wrote on last edited by
    #8

    If you continue monitoring the nodes log. Does it send anything after the log you posted above?

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    • Tomasz PazioT Offline
      Tomasz PazioT Offline
      Tomasz Pazio
      wrote on last edited by
      #9

      no, only this one, and nothing else.

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      0
      • hekH Offline
        hekH Offline
        hek
        Admin
        wrote on last edited by
        #10

        That seems wrong.

        What if you update the libraries and sketch to latest on github. There was an update to the Onewire/Dallas library recently to make in none-blocking...

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        • Tomasz PazioT Offline
          Tomasz PazioT Offline
          Tomasz Pazio
          wrote on last edited by
          #11

          log is now different
          send: 3-3-0-0 s=255,c=0,t=17,pt=0,l=3,sg=0,st=ok:1.5
          send: 3-3-0-0 s=255,c=3,t=6,pt=1,l=1,sg=0,st=ok:0
          read: 0-0-3 s=255,c=3,t=6,pt=0,l=1,sg=0:M
          sensor started, id=3, parent=0, distance=1
          send: 3-3-0-0 s=255,c=3,t=11,pt=0,l=18,sg=0,st=ok:Temperature Sensor
          send: 3-3-0-0 s=255,c=3,t=12,pt=0,l=3,sg=0,st=ok:1.1
          send: 3-3-0-0 s=0,c=0,t=6,pt=0,l=0,sg=0,st=ok:
          send: 3-3-0-0 s=1,c=0,t=6,pt=0,l=0,sg=0,st=ok:

          but still no readings on vera :(

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          • hekH Offline
            hekH Offline
            hek
            Admin
            wrote on last edited by
            #12

            I cannot see any temp readings in the debug log...

            Are you powering your 9 Dallas sensors directly from the Arduino or separately? I'm not sure how much they draw but 9 is quite much...

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            • Tomasz PazioT Offline
              Tomasz PazioT Offline
              Tomasz Pazio
              wrote on last edited by
              #13

              Now trying with one and two. No more.

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              • Tomasz PazioT Offline
                Tomasz PazioT Offline
                Tomasz Pazio
                wrote on last edited by
                #14

                There are two parts of issue:
                problem with no data on vera was on this part:
                // Only send data if temperature has changed and no error
                #if COMPARE_TEMP == 1
                if (lastTemperature[i] != temperature && temperature != -127.00 && temperature != 85.00) {
                #else
                if (temperature != -127.00 && temperature != 85.00) {
                #endif

                my reading is now -127.00
                changed to -200 and now I can see the data on vera.
                however this is not correct data because should be something like 27 Celsius.
                so there is something with conversion as well :(

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                • hekH Offline
                  hekH Offline
                  hek
                  Admin
                  wrote on last edited by
                  #15

                  -127 means something is wrong when reading your dallas sensors. It is a an error code. So you actually only have an issue with your temp sensors.

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                  • Tomasz PazioT Offline
                    Tomasz PazioT Offline
                    Tomasz Pazio
                    wrote on last edited by
                    #16

                    2015-08-01 15_47_46-Poczta.png
                    when I use Example for Dallas multiple sensors it works fine.
                    2015-08-01 15_49_37-Poczta.png
                    when I use example for one-wire temperature sensor ds18.... it works fine as well
                    so i can reed but can not use Mysensors sketch :(

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                    • hekH Offline
                      hekH Offline
                      hek
                      Admin
                      wrote on last edited by
                      #17

                      Very strange. Are you using the same OneWire library in both cases?

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                      • Tomasz PazioT Offline
                        Tomasz PazioT Offline
                        Tomasz Pazio
                        wrote on last edited by
                        #18

                        yes the same.

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                        • Tomasz PazioT Offline
                          Tomasz PazioT Offline
                          Tomasz Pazio
                          wrote on last edited by
                          #19

                          any idea?

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                          • hekH Offline
                            hekH Offline
                            hek
                            Admin
                            wrote on last edited by
                            #20

                            No, must be hundreds of users running Dallas sensors here. Trying to figure out if anything has changed in the library/dependencies but I don't see anything except the thing I mentioned earlier here.

                            And you can get the sensor running without MySensors library loaded...

                            Guess I have to hook up a Dallas sensor myself to check (tomorrow or so..)

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                            • rvendrameR Offline
                              rvendrameR Offline
                              rvendrame
                              Hero Member
                              wrote on last edited by
                              #21

                              Are you powering your Dallas sensor using the 'one-wire' method? Is your arduino 5V or 3.3V?

                              Home Assistant / Vera Plus UI7
                              ESP8266 GW + mySensors 2.3.2
                              Alexa / Google Home

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                              • Tomasz PazioT Offline
                                Tomasz PazioT Offline
                                Tomasz Pazio
                                wrote on last edited by Tomasz Pazio
                                #22

                                exactly like o the example so power from arduino 5V (not parasite)

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                                • rvendrameR Offline
                                  rvendrameR Offline
                                  rvendrame
                                  Hero Member
                                  wrote on last edited by
                                  #23

                                  Can you post the serial monitor logs, from both gateway and node?

                                  Home Assistant / Vera Plus UI7
                                  ESP8266 GW + mySensors 2.3.2
                                  Alexa / Google Home

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                                  0
                                  • Tomasz PazioT Offline
                                    Tomasz PazioT Offline
                                    Tomasz Pazio
                                    wrote on last edited by
                                    #24

                                    @rvendrame, why You need log from gateway? When no values are sent from node than nothing on Vera. When use some dummy values which are visible in node log - than those values are in Vera.

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                                    • hekH Offline
                                      hekH Offline
                                      hek
                                      Admin
                                      wrote on last edited by
                                      #25

                                      @hek said:

                                      Guess I have to hook up a Dallas sensor myself to check (tomorrow or so..)

                                      Ok, tried latest from 1.5 branch and it works fine here with 2 hooked up DS18D20.

                                      sensor started, id=200, parent=0, distance=1
                                      send: 200-200-0-0 s=255,c=3,t=11,pt=0,l=18,sg=0,st=ok:Temperature Sensor
                                      send: 200-200-0-0 s=255,c=3,t=12,pt=0,l=3,sg=0,st=ok:1.1
                                      send: 200-200-0-0 s=0,c=0,t=6,pt=0,l=0,sg=0,st=ok:
                                      send: 200-200-0-0 s=1,c=0,t=6,pt=0,l=0,sg=0,st=ok:
                                      send: 200-200-0-0 s=0,c=1,t=0,pt=7,l=5,sg=0,st=ok:27.9
                                      send: 200-200-0-0 s=1,c=1,t=0,pt=7,l=5,sg=0,st=ok:28.0
                                      send: 200-200-0-0 s=0,c=1,t=0,pt=7,l=5,sg=0,st=ok:31.5
                                      send: 200-200-0-0 s=1,c=1,t=0,pt=7,l=5,sg=0,st=ok:32.0
                                      
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                                      • Tomasz PazioT Offline
                                        Tomasz PazioT Offline
                                        Tomasz Pazio
                                        wrote on last edited by
                                        #26

                                        removed all Arduino related stuff from PC
                                        Installed new IDE and libs from https://github.com/mysensors/Arduino/archive/master.zip
                                        now I have progress, there are no readings no mater on which sketch hahaha.

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                                        • clio75C Offline
                                          clio75C Offline
                                          clio75
                                          wrote on last edited by
                                          #27

                                          Hi,

                                          I have the same problem. No temperature is transported to GW.
                                          This log is from Sensor:
                                          req id
                                          send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
                                          sensor started, id=255, parent=0, distance=1
                                          req id
                                          send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
                                          req id
                                          send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
                                          req id
                                          send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:

                                          I have added some exstra lines in serial printout so I know that ds1820 is found and read.

                                          req id
                                          send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
                                          sensor started, id=255, parent=0, distance=1
                                          req id
                                          send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
                                          req id
                                          send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
                                          **Sensors found
                                          1
                                          **req id
                                          send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
                                          temp :
                                          23.80

                                          But This value is not transported to GW.
                                          Any idee ?

                                          Thanx

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