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  3. Real Time Clock with Display Example

Real Time Clock with Display Example

Scheduled Pinned Locked Moved Development
displayrtc
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  • greglG Offline
    greglG Offline
    gregl
    Hero Member
    wrote on last edited by
    #2

    Nice Hek.
    Can you explain the values here?
    (0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE)

    I know the 0x27 is the i2c address - but the others are foreign to me, and i cant find the doco/wiki for that lib...or at least that version of the lib!

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    • K Offline
      K Offline
      korttoma
      Hero Member
      wrote on last edited by korttoma
      #3

      I was thinking the same thing as @GREGL
      I'm using the following to initialize my LCD:

      LiquidCrystal_I2C lcd(0x27,20,4);
      lcd.init();

      Don't think I'm using the same Lib either.

      • Tomas
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      • greglG Offline
        greglG Offline
        gregl
        Hero Member
        wrote on last edited by gregl
        #4

        I was just poking around on codebender and found the lib..but none of the examples use all these params.

        IIRC ,I use a different lib...as my i2c lcd controllers are pretty old..byvac from memory.

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        • H Offline
          H Offline
          hek
          Admin
          wrote on last edited by
          #5

          Found the new liquidcrystal library while searching my display Funduino/1602.

          The parameters are:

          addr, en,rw,rs,d4,d5,d6,d7,bl,blpol
          

          https://bitbucket.org/fmalpartida/new-liquidcrystal/downloads

          Example:
          http://jaredstemen.blogspot.se/2014/01/getting-funduino-1602-lcd-to-print.html

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          • K Offline
            K Offline
            korttoma
            Hero Member
            wrote on last edited by
            #6

            Tried the lib out in my setup and it seems to be working just fine so I think I will use that one to so that I can be on the same page as @hek

            • Tomas
            H 1 Reply Last reply
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            • K korttoma

              Tried the lib out in my setup and it seems to be working just fine so I think I will use that one to so that I can be on the same page as @hek

              H Offline
              H Offline
              hek
              Admin
              wrote on last edited by
              #7

              @korttoma

              I has been checked in to master.

              https://github.com/mysensors/Arduino/tree/master/libraries/LiquidCrystal

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              • B Offline
                B Offline
                bjornhallberg
                Hero Member
                wrote on last edited by bjornhallberg
                #8

                These OLED displays seem pretty cool also if the quality is ok and the library doesn't eat up too much space:
                https://www.youtube.com/watch?v=mMiMNTv25Bw
                A lot more information being displayed in a much smaller package. Price is similar to the 16x2 LCD and they run on 3.3-5V apparently. Available as I2C also.

                M 1 Reply Last reply
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                • greglG Offline
                  greglG Offline
                  gregl
                  Hero Member
                  wrote on last edited by
                  #9

                  Hey maybe i can use this with the microview http://forum.mysensors.org/topic/48/idea-s-microview/

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                  • B bjornhallberg

                    These OLED displays seem pretty cool also if the quality is ok and the library doesn't eat up too much space:
                    https://www.youtube.com/watch?v=mMiMNTv25Bw
                    A lot more information being displayed in a much smaller package. Price is similar to the 16x2 LCD and they run on 3.3-5V apparently. Available as I2C also.

                    M Offline
                    M Offline
                    marceltrapman
                    Mod
                    wrote on last edited by
                    #10

                    @bjornhallberg said:

                    These OLED displays seem pretty cool also if the quality is ok and the library doesn't eat up too much space:
                    https://www.youtube.com/watch?v=mMiMNTv25Bw
                    A lot more information being displayed in a much smaller package. Price is similar to the 16x2 LCD and they run on 3.3-5V apparently. Available as I2C also.

                    I have a couple of these (I2C) and they are great.
                    I have tried to use them together with a temp sensor but I failed doing so.
                    I was able to compile and upload the sketch but due to a lack of patience I did not investigate why it failed.
                    My gut feeling is that the problem was the use of too many string values...

                    Fulltime Servoy Developer
                    Parttime Moderator MySensors board

                    I use Domoticz as controller for Z-Wave and MySensors (previously Indigo and OpenHAB).
                    I have a FABtotum to print cases.

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                    • R Offline
                      R Offline
                      Rek
                      wrote on last edited by
                      #11

                      I have a couple of these OLED displays on order, will see if I can get them working with the sensors.

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                      • H hek

                        Put together a new example inspired by @gregl for the RTC module.
                        Also added a display to show date, time and temperature.

                        http://www.mysensors.org/build/display

                        https://codebender.cc/sketch:48371

                        cadetC Offline
                        cadetC Offline
                        cadet
                        wrote on last edited by cadet
                        #12

                        @hek said in Real Time Clock with Display Example:

                        http://www.mysensors.org/build/display

                        Hi

                        Can you modify code for adding temp sensor to GW.
                        And may be display day of week.
                        Thank you.

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