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  1. Home
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  3. My Slim 2AA Battery Node

My Slim 2AA Battery Node

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  • m26872M Offline
    m26872M Offline
    m26872
    Hardware Contributor
    wrote on last edited by
    #19

    For info. I've prototyped and ordered a slightly improved version of the pcb. Note that this is UNTESTED and experimental.
    Eagle brd-file and board house link. Use it for inspiration. Don't expect it to be and tested until next month at least.
    board_v1.2.PNG

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    • mfalkviddM Offline
      mfalkviddM Offline
      mfalkvidd
      Mod
      wrote on last edited by
      #20

      Great work @m26872
      Thanks for sharing!

      1 Reply Last reply
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      • F Offline
        F Offline
        frenchclem
        wrote on last edited by
        #21

        Really great idea @m26872 !!
        I'm waiting for the V1.2 test and review before ordering some boards on DirtyPcb.
        One Tip/question : have you thought on panelizing your slimnode, because we could easily fit 3 board on the 5X5 limitation ? I also think that DirtyPCB would even process the break routing to ease board separation.

        m26872M 1 Reply Last reply
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        • F frenchclem

          Really great idea @m26872 !!
          I'm waiting for the V1.2 test and review before ordering some boards on DirtyPcb.
          One Tip/question : have you thought on panelizing your slimnode, because we could easily fit 3 board on the 5X5 limitation ? I also think that DirtyPCB would even process the break routing to ease board separation.

          m26872M Offline
          m26872M Offline
          m26872
          Hardware Contributor
          wrote on last edited by m26872
          #22

          @frenchclem
          AAMOF I ordered a panelized version just a few days ago. I'm completely new to all this, so I leave no guarantees...
          Here's the brd-file.

          Edit 3/12: Boardhouse link removed (the panelized version of v1.2 contains a faulty via between D13 and SCK.)

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          • F Offline
            F Offline
            frenchclem
            wrote on last edited by
            #23

            I guess if you ordered panelized version, you have tested the V1.2 ? Would you mind sharing the schematics also please ?
            I'm also very new to this, I've never ordered PCB on Dirtypcb, how long does it takes to arrive in Europe ?

            m26872M 1 Reply Last reply
            0
            • GertSandersG Offline
              GertSandersG Offline
              GertSanders
              Hardware Contributor
              wrote on last edited by
              #24

              Delivery times depend mostly on shipping time. DirtyPCB have their boards made usually within a week after uploading the files. But shipping can take 3-4 weeks to get to Europe.

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              • F frenchclem

                I guess if you ordered panelized version, you have tested the V1.2 ? Would you mind sharing the schematics also please ?
                I'm also very new to this, I've never ordered PCB on Dirtypcb, how long does it takes to arrive in Europe ?

                m26872M Offline
                m26872M Offline
                m26872
                Hardware Contributor
                wrote on last edited by
                #25

                @frenchclem
                No I actually ordered before I got the first sample, due to the delivery time. But now (just a day after) I got the first v1.2. Delivery time was 4 weeks (to Sweden). Soon tested...

                I don't think there are any changes to the already published schematics.

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                • F Offline
                  F Offline
                  frenchclem
                  wrote on last edited by
                  #26

                  @GertSanders @m26872
                  Thanks guys for the good work I just ordered your boards
                  Will definitely let you know how things goes

                  GertSanders, did you find a nice box for your board + battery ?

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                  • GertSandersG Offline
                    GertSandersG Offline
                    GertSanders
                    Hardware Contributor
                    wrote on last edited by GertSanders
                    #27

                    @frenchclem Not yet, the height is indeed the limiting factor. I'm now looking for a small box that can hold the sensor on it's side. SO for the moment the sensors are scattered around the house without a box around them (usually in places where the cat does not go or could find them).

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                    • F Offline
                      F Offline
                      frenchclem
                      wrote on last edited by
                      #28

                      @GertSanders thats what I was worried about. What is the height of the sensor + battery ?

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                      • GertSandersG Offline
                        GertSandersG Offline
                        GertSanders
                        Hardware Contributor
                        wrote on last edited by GertSanders
                        #29

                        @frenchclem
                        I can not measure that now (at work), but I guess around 35mm if batteries are mounted on he bottom. By using the extrnal (JST connector) power option, the height of PCB, processor and radio is around 22mm I think.

                        Most boxes have an internal clearance of around 20-25mm.
                        Some boxes have 40mm internal clearance and are good in height, but those are usually also to long and wide for my taste.

                        @m26872 's board certainly is lower, since batteries are not on the bottom but in the axis of the board. The radio is also directed away from the processor on his board, so it can be mounted lower (directly on PCB instead of on a header). I really like that concept, since it will fit the plastic cableducts made by Legrand:
                        http://www.ecataleg.be/fr/categorie/3020/moulure-et-goulotte-murale-en-pc-abs-sans-halogene

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                        • GertSandersG Offline
                          GertSandersG Offline
                          GertSanders
                          Hardware Contributor
                          wrote on last edited by
                          #30

                          @frenchclem
                          Just to confirm: 35mm is the height with the small radio.
                          Using the larger radio (with PA+LNA) you need 41mm height
                          Without battery holders, and the small radio, the height is 22 mm
                          Width is 25mm for AAA battery holders mounted, 33mm for AA battery holder, and length is 53mm (AAA batteries) and 58mm (AA batteries)

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                          • m26872M Offline
                            m26872M Offline
                            m26872
                            Hardware Contributor
                            wrote on last edited by
                            #31

                            v1.2 tested and working. But the design of crossing R1 and C2 was a horrible choice - it's impossible to fit both nicely under/inside the uC socket. Perhaps possible with a 1/8W R1, but otherwise R1, C2 or both must be placed on bottom side.

                            Good news is that all versions and orders are OK apart from this little inconvenience.

                            I'll try to make a better version ASAP.

                            AWIA 1 Reply Last reply
                            1
                            • m26872M m26872

                              v1.2 tested and working. But the design of crossing R1 and C2 was a horrible choice - it's impossible to fit both nicely under/inside the uC socket. Perhaps possible with a 1/8W R1, but otherwise R1, C2 or both must be placed on bottom side.

                              Good news is that all versions and orders are OK apart from this little inconvenience.

                              I'll try to make a better version ASAP.

                              AWIA Offline
                              AWIA Offline
                              AWI
                              Hero Member
                              wrote on last edited by AWI
                              #32

                              @m26872 I have assembled 6 boards now and am very happy with the design. I use strips as a socket for the Atmega. This leaves enough room for components under it. Also made one with SPI connector. Works perfect! Thank you for sharing the design and instructions.upload-422d1df5-f52b-46fd-b28c-67493daa9fdc upload-aea4bc1e-e16a-4881-a378-e609a6c2f0c8

                              m26872M 1 Reply Last reply
                              5
                              • AWIA AWI

                                @m26872 I have assembled 6 boards now and am very happy with the design. I use strips as a socket for the Atmega. This leaves enough room for components under it. Also made one with SPI connector. Works perfect! Thank you for sharing the design and instructions.upload-422d1df5-f52b-46fd-b28c-67493daa9fdc upload-aea4bc1e-e16a-4881-a378-e609a6c2f0c8

                                m26872M Offline
                                m26872M Offline
                                m26872
                                Hardware Contributor
                                wrote on last edited by
                                #33

                                @AWI Great idea with the strips! And thanks for verifying (v1.2?).

                                AWIA 1 Reply Last reply
                                0
                                • m26872M Offline
                                  m26872M Offline
                                  m26872
                                  Hardware Contributor
                                  wrote on last edited by m26872
                                  #34

                                  I've now ordered yet another prototype version (1.4):
                                  http://dirtypcbs.com/view.php?share=13310&accesskey=58c87fe605eb91958938f70b5efc8629

                                  Eagle brd-file.

                                  Photo here.

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                                  • m26872M Offline
                                    m26872M Offline
                                    m26872
                                    Hardware Contributor
                                    wrote on last edited by
                                    #35

                                    I bought a few enclosures... "mini trunking" seems to be the correct term. This time it was ABS and a little more clear white colour and glossy finish. I think I spent around 2hrs cutting them nicely into >200pcs. 50% 23cm and 50% 19cm lengths.
                                    full_box.jpg
                                    label.jpg

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                                    1
                                    • DidiD Offline
                                      DidiD Offline
                                      Didi
                                      wrote on last edited by
                                      #36

                                      You want to make your town mysensors :joy:

                                      if (knowledge == 0) { use BRAIN; use GOOGLE;use SEARCH; } else {make POST;}

                                      1 Reply Last reply
                                      1
                                      • hekH Offline
                                        hekH Offline
                                        hek
                                        Admin
                                        wrote on last edited by
                                        #37

                                        @m26872
                                        200pcs!! What the heck are you up to?

                                        m26872M 1 Reply Last reply
                                        0
                                        • m26872M m26872

                                          @AWI Great idea with the strips! And thanks for verifying (v1.2?).

                                          AWIA Offline
                                          AWIA Offline
                                          AWI
                                          Hero Member
                                          wrote on last edited by
                                          #38

                                          @m26872 I think I used version 1.1? Did you change any of the wiring in the newer versions?

                                          m26872M 1 Reply Last reply
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