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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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  • H Offline
    H 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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      • H Offline
        H 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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            • H Offline
              H 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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                • H Offline
                  H 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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                      • H Offline
                        H 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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                        • R Offline
                          R 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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                            • R Offline
                              R 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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                                • H Offline
                                  H 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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                                    • C Offline
                                      C 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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