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  3. Sensebender Micro

Sensebender Micro

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  • tbowmoT Offline
    tbowmoT Offline
    tbowmo
    Admin
    wrote on last edited by
    #276

    Just a hint, itead studio is starting a sale with 10% off on all imall items.. So maybe it's time to buy some Christmas presents for the inner geek :)

    1 Reply Last reply
    0
    • A Offline
      A Offline
      akbooer
      wrote on last edited by
      #277

      Oh no! Lousy timing, I just bought some...
      ... in fact, they arrived today.

      Speaking of which, whilst I got them to run the default sketch, do I actually need a programmer to do anything different, or can this be done OTA (from a Mac) ?

      1 Reply Last reply
      0
      • tbowmoT Offline
        tbowmoT Offline
        tbowmo
        Admin
        wrote on last edited by
        #278

        @akbooer

        The default sketch doesn't support OTA, as it wasn't available in the stable branch at the time of launch

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        0
        • 5546dug5 Offline
          5546dug5 Offline
          5546dug
          wrote on last edited by
          #279

          @tbowmo Good sales but did not see the Sensebender too bad .

          1 Reply Last reply
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          • tbowmoT Offline
            tbowmoT Offline
            tbowmo
            Admin
            wrote on last edited by
            #280

            @akbooer

            It's here http://www.itead.cc/mysensors-micro.html

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            • epierreE Offline
              epierreE Offline
              epierre
              Hero Member
              wrote on last edited by epierre
              #281

              @hek I've soldered a second unit to compare, same error, I flashed back the sensebender version from the examples and on both I am stuck here: "Sensebender Micro FW 1.2radio init fail"

              Gateway is 1.5 BTW, one radio is from itead the other not.

              z-wave - Vera -> Domoticz
              rfx - Domoticz <- MyDomoAtHome <- Imperihome
              mysensors -> mysensors-gw -> Domoticz

              1 Reply Last reply
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              • SparkmanS Sparkman

                @epierre Can you confirm the settings you used in the IDE to program it? Are you sure there are no solder bridges where you soldered the radio or socket for the radio? Have you tried powering it with a couple of AA batteries after you uploaded the sketch?

                Cheers
                Al

                epierreE Offline
                epierreE Offline
                epierre
                Hero Member
                wrote on last edited by
                #282

                @Sparkman said:

                @epierre Can you confirm the settings you used in the IDE to program it?

                1.6.5 version

                Are you sure there are no solder bridges where you soldered the radio or socket for the radio?

                same behavior on two units

                Have you tried powering it with a couple of AA batteries after you uploaded the sketch?

                not yet but why should that change anything ?

                z-wave - Vera -> Domoticz
                rfx - Domoticz <- MyDomoAtHome <- Imperihome
                mysensors -> mysensors-gw -> Domoticz

                1 Reply Last reply
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                • M Offline
                  M Offline
                  mvader
                  wrote on last edited by
                  #283
                  This post is deleted!
                  1 Reply Last reply
                  0
                  • A Offline
                    A Offline
                    akbooer
                    wrote on last edited by
                    #284

                    Just tried out my first Sensebender...
                    soldered pins and battery power...
                    turn on...
                    led flashes once...
                    start inclusion...
                    3 devices...
                    Vera restarts (actually, it's openLuup running on an Arduino Yún)...
                    there they are...
                    and updating every minute!

                    Thanks so much to all who made this level of sophistication so easy!! (Z-wave was never this simple!)

                    Whilst I need a couple of temp/humidity sensors, I also need to reflash one as a 4-switch sensor. Can I do this with an Arduino Uno configured with the ArduinoISP sketch as described here ?
                    https://www.arduino.cc/en/Tutorial/ArduinoISP

                    Any advice or useful pointers? Thanks.

                    1 Reply Last reply
                    0
                    • tbowmoT Offline
                      tbowmoT Offline
                      tbowmo
                      Admin
                      wrote on last edited by
                      #285

                      @epierre

                      What do you use as supply voltage for the thing? What is the output from testmode?

                      Did you add a capacitor on the radio module? How did you mount them together? (picture?)

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                      0
                      • tbowmoT Offline
                        tbowmoT Offline
                        tbowmo
                        Admin
                        wrote on last edited by
                        #286

                        @akbooer

                        Should be doable with an arduino as isp. Another option is to use the serial upload.

                        1 Reply Last reply
                        0
                        • J Offline
                          J Offline
                          jovo
                          wrote on last edited by
                          #287

                          I am a noob in coding so I need some advice for tuning the sensebender.ino
                          current observed problems:

                          1. sensor values transmitted every minutes
                          2. battery level info seems wrong

                          I am running the default senseblender.ino.

                          on 1) What I understood in this forum, it should transmit the temp. values only every 30min (or direct when change is >.05). However, I see them arriving in my controller (Domoticz) every minute. What should I change to have it send every 30min?

                          on 2) I observe in Domoticz that the battery levels reported (in the Devices section) are inaccurate. For example: one sensebender with 3.2v measured power reports 80, where I would expect round 100 (this one has new batteries). Other sensebenders with still 2.63v report 53. How to calibrate the battery measurement?

                          I have been searching this forum, but was unable to find the answer.
                          Alternatively, a pointer to a wiki on sensebender.ino that has this explained would work as well.

                          martinhjelmareM 1 Reply Last reply
                          0
                          • tbowmoT Offline
                            tbowmoT Offline
                            tbowmo
                            Admin
                            wrote on last edited by
                            #288

                            @jovo

                            The firmware that the sensebender is shipped with is pretty old, compared to the one that's available in the current master branch of mysensors library. A lot have been done to do better transmit control (like, limiting number of transmits etc.)

                            About the battery voltage, the sensebender is measuring against an internal vref, which isn't that accurate. I can't remember the specifics at the moment, but it's hidden somewhere in the datasheet. The measurement method has a lot of inaccuracy, but on the other hand it saves external components and power.

                            I didn't focus on it, but one could perhaps make some kind of calibration routine, use a known supply voltage and do some internal calculations and store an offset in eeprom.

                            1 Reply Last reply
                            0
                            • F Offline
                              F Offline
                              Fabien
                              wrote on last edited by
                              #289

                              @jovo for battery mesurement it's correct 100% is for 3.3V and 0% for 1.9 V (BOD fuse setting). so for 2.63 you have 52,14 %

                              1 Reply Last reply
                              0
                              • J jovo

                                I am a noob in coding so I need some advice for tuning the sensebender.ino
                                current observed problems:

                                1. sensor values transmitted every minutes
                                2. battery level info seems wrong

                                I am running the default senseblender.ino.

                                on 1) What I understood in this forum, it should transmit the temp. values only every 30min (or direct when change is >.05). However, I see them arriving in my controller (Domoticz) every minute. What should I change to have it send every 30min?

                                on 2) I observe in Domoticz that the battery levels reported (in the Devices section) are inaccurate. For example: one sensebender with 3.2v measured power reports 80, where I would expect round 100 (this one has new batteries). Other sensebenders with still 2.63v report 53. How to calibrate the battery measurement?

                                I have been searching this forum, but was unable to find the answer.
                                Alternatively, a pointer to a wiki on sensebender.ino that has this explained would work as well.

                                martinhjelmareM Offline
                                martinhjelmareM Offline
                                martinhjelmare
                                Plugin Developer
                                wrote on last edited by
                                #290

                                @jovo As @Fabien wrote, the default code puts 3.3 V as 100%. Look for the percentage calculation. You will see that it's basically (vcc - 1900)/14. This makes sense if using a step-up converter where you get 3.3 V. But if connecting directly to two AAs, 100% should be around 3 V. So just replace 14 with 11 in the calculation.

                                1 Reply Last reply
                                0
                                • J Offline
                                  J Offline
                                  jovo
                                  wrote on last edited by jovo
                                  #291

                                  Thanks for the comments and suggestion.
                                  Now I have installed the master branch code from the mys. library.
                                  Unfortunately no change. Still very frequent updates (under the same circumstances).
                                  I sense it has something to do with :
                                  bool tx = force;
                                  but I am not quite sure where to change it in.
                                  I will continue my search.....

                                  1 Reply Last reply
                                  0
                                  • tbowmoT Offline
                                    tbowmoT Offline
                                    tbowmo
                                    Admin
                                    wrote on last edited by
                                    #292

                                    @jovo

                                    There is a small error in the sketch, that falsely converts floats to ints. Look at line 243, it's dividing by 100:

                                    float diffTemp = abs(lastTemperature - (isMetric ? data.celsiusHundredths : data.fahrenheitHundredths)/100);
                                    float diffHum = abs(lastHumidity - raHum.getAverage());
                                    

                                    This should be changed to 100.0 instead. This way the calculation is returning as a float.

                                    float diffTemp = abs(lastTemperature - (isMetric ? data.celsiusHundredths : data.fahrenheitHundredths)/100.0);
                                    float diffHum = abs(lastHumidity - raHum.getAverage());
                                    
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                                    0
                                    • 5546dug5 Offline
                                      5546dug5 Offline
                                      5546dug
                                      wrote on last edited by
                                      #293

                                      @fabian how is the box working out were there any mods and are the stl files ready yet?

                                      F 1 Reply Last reply
                                      0
                                      • J Offline
                                        J Offline
                                        jovo
                                        wrote on last edited by jovo
                                        #294

                                        ok, it seems the aggregated upload is solved with the change from Thomas.
                                        Now I modify the "14" in "11" as suggested by martin. I have 105% now, but that could be right because I measure 3.1V from my 2 fresh AA's

                                        The only 'new issue' I discovered is that one sensor actually stops being received updates from due low power. The measured voltage on the batteries is still 2.1V and the battery indicator was at 23%.
                                        Could it be that I have bad fake radios that don't operate lower then 2.1V? (since there is no other external components added to my setup, I suspect only the radios).

                                        1 Reply Last reply
                                        0
                                        • 5546dug5 5546dug

                                          @fabian how is the box working out were there any mods and are the stl files ready yet?

                                          F Offline
                                          F Offline
                                          Fabien
                                          wrote on last edited by Fabien
                                          #295

                                          @5546dug said:

                                          @fabian how is the box working out were there any mods and are the stl files ready yet?

                                          Sorry, my 3D printer is out of service, I'm waiting for chinese parts ... I will post correct STL files in 1 or 2 weeks.

                                          alexsh1A 1 Reply Last reply
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