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  1. Home
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  3. multiple DS18D20 does not report temperature

multiple DS18D20 does not report temperature

Scheduled Pinned Locked Moved Troubleshooting
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  • Tomasz PazioT Offline
    Tomasz PazioT Offline
    Tomasz Pazio
    wrote on last edited by
    #7

    so something wrong with presenting readings :( what to check on vera side?

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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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        • 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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                                    • 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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