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  3. My Slim 2AA Battery Node

My Slim 2AA Battery Node

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  • ahmedadelhosniA Offline
    ahmedadelhosniA Offline
    ahmedadelhosni
    wrote on last edited by ahmedadelhosni
    #78

    I know I have many questions :) but how about inverting the nrf position by 180 degree so that it can be on top of the atmega and decrease that length. Would it fit in your design ?
    Can you do such board for those who are interested like me :) ?

    m26872M 1 Reply Last reply
    0
    • ahmedadelhosniA ahmedadelhosni

      I know I have many questions :) but how about inverting the nrf position by 180 degree so that it can be on top of the atmega and decrease that length. Would it fit in your design ?
      Can you do such board for those who are interested like me :) ?

      m26872M Offline
      m26872M Offline
      m26872
      Hardware Contributor
      wrote on last edited by m26872
      #79

      @ahmedadelhosni
      I think it's a good idea! And an easy mod, but it's not on priority list atm. Someone else would get a quick start from my already published kicad-files.

      The thought behind present design is that I didn't want anything to cover the antenna in any direction, but I doubt it would matter much in this suggested case. It'll be worse when it comes to the hight. Look at the photos. The nRF becomes too high for my enclosures if I use a socket, and the 328p with its socket is too high to fit under a nRF without its socket. The solution would be to remove the 328p socket and move the R and Cs to bottom side or somewhere else. And without a 328p socket, the 3x2 AVR ISP pins would become more important to keep. Otherwise the board could have been trimmed even more.

      ahmedadelhosniA 2 Replies Last reply
      0
      • m26872M m26872

        @ahmedadelhosni
        I think it's a good idea! And an easy mod, but it's not on priority list atm. Someone else would get a quick start from my already published kicad-files.

        The thought behind present design is that I didn't want anything to cover the antenna in any direction, but I doubt it would matter much in this suggested case. It'll be worse when it comes to the hight. Look at the photos. The nRF becomes too high for my enclosures if I use a socket, and the 328p with its socket is too high to fit under a nRF without its socket. The solution would be to remove the 328p socket and move the R and Cs to bottom side or somewhere else. And without a 328p socket, the 3x2 AVR ISP pins would become more important to keep. Otherwise the board could have been trimmed even more.

        ahmedadelhosniA Offline
        ahmedadelhosniA Offline
        ahmedadelhosni
        wrote on last edited by ahmedadelhosni
        #80

        @m26872 I guess the nrf above the atmega won't cause problems or interference to the atmega due to rf signals. so that's fine.

        I measured the nrf and it will be 13 mm, so I thought it may fit as from the photos, I guess the max height can be 13 or 14. For me increasing the height is not a problem as I am still searching for cheap compact and not so long enclosure with maximum heigh 20 mm to use. I am searching for cheap products which are kept in that size of enclosure which I need but didn't find it yet :)

        I didn't use Kicad before and I guess there is no converters to eagle. Youtube time :)

        Can you please tell me the total length of the board + nrf ?

        m26872M 1 Reply Last reply
        0
        • ahmedadelhosniA ahmedadelhosni

          @m26872 I guess the nrf above the atmega won't cause problems or interference to the atmega due to rf signals. so that's fine.

          I measured the nrf and it will be 13 mm, so I thought it may fit as from the photos, I guess the max height can be 13 or 14. For me increasing the height is not a problem as I am still searching for cheap compact and not so long enclosure with maximum heigh 20 mm to use. I am searching for cheap products which are kept in that size of enclosure which I need but didn't find it yet :)

          I didn't use Kicad before and I guess there is no converters to eagle. Youtube time :)

          Can you please tell me the total length of the board + nrf ?

          m26872M Offline
          m26872M Offline
          m26872
          Hardware Contributor
          wrote on last edited by
          #81

          @ahmedadelhosni
          It's 74mm with the angled Arduino pins and 69mm without.

          ahmedadelhosniA 1 Reply Last reply
          0
          • m26872M m26872

            @ahmedadelhosni
            It's 74mm with the angled Arduino pins and 69mm without.

            ahmedadelhosniA Offline
            ahmedadelhosniA Offline
            ahmedadelhosni
            wrote on last edited by
            #82

            @m26872 Thanks.

            Hopefully this is my last question :)

            Is V1.4 and 2.0 the same ? One is red in Eagle and the other in black in Kicad ?

            If yes, could you please guide me to the eagle's project files ? Thanks.

            m26872M 1 Reply Last reply
            0
            • ahmedadelhosniA ahmedadelhosni

              @m26872 Thanks.

              Hopefully this is my last question :)

              Is V1.4 and 2.0 the same ? One is red in Eagle and the other in black in Kicad ?

              If yes, could you please guide me to the eagle's project files ? Thanks.

              m26872M Offline
              m26872M Offline
              m26872
              Hardware Contributor
              wrote on last edited by
              #83

              @ahmedadelhosni
              Yes, v1.4 is Eagle. I'll upload it later today. But it's just a brd-file. And I think I had some broken sch-brd connections even in v1.2. One reason for the KiCad design was to improve this.

              ahmedadelhosniA 1 Reply Last reply
              0
              • m26872M m26872

                @ahmedadelhosni
                Yes, v1.4 is Eagle. I'll upload it later today. But it's just a brd-file. And I think I had some broken sch-brd connections even in v1.2. One reason for the KiCad design was to improve this.

                ahmedadelhosniA Offline
                ahmedadelhosniA Offline
                ahmedadelhosni
                wrote on last edited by
                #84

                @m26872 hmm I see. So i will begin learning Kicad today. Thanks for your effort and support

                m26872M 1 Reply Last reply
                0
                • ahmedadelhosniA ahmedadelhosni

                  @m26872 hmm I see. So i will begin learning Kicad today. Thanks for your effort and support

                  m26872M Offline
                  m26872M Offline
                  m26872
                  Hardware Contributor
                  wrote on last edited by
                  #85

                  @ahmedadelhosni
                  I uploaded the brd in the v1.4 post above just for completness.
                  Happy Kicading! Hope you'll enjoy. I liked it a lot better. There were a few nice youtube tutorials.
                  You're welcome.

                  1 Reply Last reply
                  2
                  • m26872M Offline
                    m26872M Offline
                    m26872
                    Hardware Contributor
                    wrote on last edited by
                    #86

                    First Slim Node board donation from the DirtyPCB board share now sent. $12 to MySensors.org. Thanks to everyone that have ordered.

                    Later credit draw will be in probably linger a bit. DirtyPCB seems to be somewhat of a non-profit community with manual attendance to all share credits. I almost got banned in my attempts to get a reply from them. In order to show my appreciation for their great service, I plan to only request further credits in quantities of 50. If the board not's been shared in a year a so, of course I'll make an exception.

                    1 Reply Last reply
                    2
                    • hekH Offline
                      hekH Offline
                      hek
                      Admin
                      wrote on last edited by
                      #87

                      @m26872
                      Thanks for the kind donation to the MySensors project. We'll use it to develop new fun things for the community!

                      1 Reply Last reply
                      1
                      • AWIA Offline
                        AWIA Offline
                        AWI
                        Hero Member
                        wrote on last edited by
                        #88

                        I was out of radio's, only a few "smd" types left which I mounted on the board with some patchwork ;-)

                        upload-9bcfc8fe-4f7f-48ba-90dc-31443ed62f89

                        Now even more space left in the (small) housing.

                        upload-6b158358-0c6f-4983-89d4-16a13f9a87e9

                        upload-b3b5aa3b-3e76-4690-a05c-49df931a6df7

                        1 Reply Last reply
                        3
                        • dakkyD Offline
                          dakkyD Offline
                          dakky
                          wrote on last edited by
                          #89

                          Could u show a screen for the lockbits too? I have never set them before and need some guidance :D thanks

                          Dakky

                          Controller: Raspberry Pi 2 :: Openhab2 :: with @TimO MySensors Binding
                          Gateway: Arduino MEGA 2560 R3 :: W5100 :: Ethernet GW

                          Software: MySensors 2.0development

                          m26872M bjacobseB 2 Replies Last reply
                          0
                          • dakkyD dakky

                            Could u show a screen for the lockbits too? I have never set them before and need some guidance :D thanks

                            Dakky

                            m26872M Offline
                            m26872M Offline
                            m26872
                            Hardware Contributor
                            wrote on last edited by
                            #90

                            @dakky Done.

                            1 Reply Last reply
                            1
                            • Cliff KarlssonC Offline
                              Cliff KarlssonC Offline
                              Cliff Karlsson
                              wrote on last edited by
                              #91

                              Is this what you used to burn the bootloader?

                              USB-programmer-AVRISP-mkII-mk2-clone-ATMEL-AVR-New

                              1 Reply Last reply
                              0
                              • m26872M Offline
                                m26872M Offline
                                m26872
                                Hardware Contributor
                                wrote on last edited by
                                #92

                                I use this. Maybe not so expensive when I bought it 15 months ago, but still. I remember I was mad after I'd failed a lot with avrdude and cheaper tools (uno).

                                1 Reply Last reply
                                0
                                • M Offline
                                  M Offline
                                  martkrui
                                  wrote on last edited by
                                  #93

                                  Just received my boards from DirtyPCB :smile:
                                  Enough for 10x3=30 sensors... :scream: The boards look nice. I think I can even skip the R&C's if I use the internal VCC measuring method but I'll have to scan the thread for that.

                                  m26872M 1 Reply Last reply
                                  1
                                  • M martkrui

                                    Just received my boards from DirtyPCB :smile:
                                    Enough for 10x3=30 sensors... :scream: The boards look nice. I think I can even skip the R&C's if I use the internal VCC measuring method but I'll have to scan the thread for that.

                                    m26872M Offline
                                    m26872M Offline
                                    m26872
                                    Hardware Contributor
                                    wrote on last edited by
                                    #94

                                    @martkrui R1 and C2 are mandatory if you intend to use the 6 pin FTDI port (I think you do). C3 (ARef - Gnd) is primarily for when you use Adc external ref, but (if I remember correct) it stabilizes the Adc in general. C1 (Vcc - Gnd) is just the "near chip supply input capacitor" and could probably be left out if there are some other caps near the nRF.

                                    1 Reply Last reply
                                    0
                                    • dakkyD dakky

                                      Could u show a screen for the lockbits too? I have never set them before and need some guidance :D thanks

                                      Dakky

                                      bjacobseB Offline
                                      bjacobseB Offline
                                      bjacobse
                                      wrote on last edited by
                                      #95

                                      @dakky said:

                                      Could u show a screen for the lockbits too? I have never set them before and need some guidance :D thanks

                                      Dakky

                                      I use ubuntu, and a tiny USB, so after I have flashed my arduino board, I run this avrdude command, that will run until battery is low

                                      avrdude -c usbtiny -p m328p -U efuse:w:0x07:m
                                      

                                      I have bought usbtiny from this guy:
                                      http://www.ebay.com/itm/USBtinyISP-V4-AVR-ISP-Programmer-Reliable-Plastic-Enclosure-/330824700564?hash=item4d06b05294

                                      1 Reply Last reply
                                      0
                                      • m26872M m26872

                                        @ahmedadelhosni
                                        I think it's a good idea! And an easy mod, but it's not on priority list atm. Someone else would get a quick start from my already published kicad-files.

                                        The thought behind present design is that I didn't want anything to cover the antenna in any direction, but I doubt it would matter much in this suggested case. It'll be worse when it comes to the hight. Look at the photos. The nRF becomes too high for my enclosures if I use a socket, and the 328p with its socket is too high to fit under a nRF without its socket. The solution would be to remove the 328p socket and move the R and Cs to bottom side or somewhere else. And without a 328p socket, the 3x2 AVR ISP pins would become more important to keep. Otherwise the board could have been trimmed even more.

                                        ahmedadelhosniA Offline
                                        ahmedadelhosniA Offline
                                        ahmedadelhosni
                                        wrote on last edited by ahmedadelhosni
                                        #96

                                        @m26872 Hi again. Just a small update regarding rotating the nrf.

                                        I decided that in my designs I'll need the straight and rotated version, thus I'll design a small board to map the pin outputs like the image below. It will be above the ICSP pins but I really don't care about re flashing.

                                        I'll order the board as soon as I finish pcb layout of some other boards and ship all at once.

                                        Thanks.

                                        upload-dbcd859c-7c4c-4e46-959c-e83314602bcd

                                        m26872M 1 Reply Last reply
                                        0
                                        • ahmedadelhosniA ahmedadelhosni

                                          @m26872 Hi again. Just a small update regarding rotating the nrf.

                                          I decided that in my designs I'll need the straight and rotated version, thus I'll design a small board to map the pin outputs like the image below. It will be above the ICSP pins but I really don't care about re flashing.

                                          I'll order the board as soon as I finish pcb layout of some other boards and ship all at once.

                                          Thanks.

                                          upload-dbcd859c-7c4c-4e46-959c-e83314602bcd

                                          m26872M Offline
                                          m26872M Offline
                                          m26872
                                          Hardware Contributor
                                          wrote on last edited by
                                          #97

                                          @ahmedadelhosni You know that the nRF pins are not centered? That means if you rotate it like this it will no longer be straight above the "slim node motherboard".
                                          What height do you expect it to be?

                                          ahmedadelhosniA 1 Reply Last reply
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