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    CM4 adapter to Duet 3

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    • Stephen6309undefined
      Stephen6309
      last edited by

      I figured out Kicad 6 and freerouting. Used rpi-cm4-carrier-template and bits of CM4IO to make it. Boards ordered from JLCPCB. It a sdcard for the lite, ethernet co, 40 pin and a 23pin socket. All All I have is a Wifi 2gb/8gb version. Don't have a lite to test the sdcard. Those currently have outrageous prices: Amazon:$109, Alliexpress:$170.

      Have to get the parts next month and hopefully doing the small smds aren't too hard. I do need to get a rework board heater, already have the hotair gizmo.
      Duet3SBCAdapter.png

      oliofundefined TLASundefined 3 Replies Last reply Reply Quote 1
      • oliofundefined
        oliof @Stephen6309
        last edited by

        @stephen6309 if you have spares, I'd be interested in a board. I have a CM4 that's currently unused.

        <>RatRig V-Minion Fly Super5Pro RRF<> V-Core 3.1 IDEX k*****r <> RatRig V-Minion SKR 2 Marlin<>

        Stephen6309undefined 1 Reply Last reply Reply Quote 0
        • Stephen6309undefined
          Stephen6309 @oliof
          last edited by

          @oliof I did order five, so at least a couple should survive my learning smd soldering.

          1 Reply Last reply Reply Quote 1
          • Stephen6309undefined
            Stephen6309
            last edited by

            I do plan on releasing the kicad files for it.

            1 Reply Last reply Reply Quote 0
            • TLASundefined
              TLAS @Stephen6309
              last edited by

              @stephen6309
              Very nice!

              I was going to create a board like this but with PoE and a camera interface as well. Ultimately gave up when I realized how horrible the inventory is with anything PI at the moment.

              Interesting side-note, there appears to be a Compute Module 4S (CM4S) in the works that was found in a GitHub repo. Check out the pi forums for more details- crossing my fingers these will actually be in stock!

              1 Reply Last reply Reply Quote 0
              • TLASundefined
                TLAS @Stephen6309
                last edited by

                @stephen6309
                Also - let me know if you find a good board-to-board connector to mount it directly in top of the Duet 3!

                Stephen6309undefined 1 Reply Last reply Reply Quote 0
                • Stephen6309undefined
                  Stephen6309 @TLAS
                  last edited by

                  @tlas The template has:
                  Receptacle component options:
                  1.5mm height: 2x Hirose DF40C-100DS-0.4v
                  OR
                  3.0mm height: 2x Hirose DF40HC(3.0)-100DS-0.4v

                  It appears it has a lead around 26 weeks at Digikey and Mouser.

                  1 Reply Last reply Reply Quote 0
                  • Stephen6309undefined
                    Stephen6309
                    last edited by Stephen6309

                    Looks like the hirose connectors are back ordered everywhere. ETA July, I ordered 10 from Mouser. Will order the other smd bits then. Of course, I found an error on the boards after I ordered them. Accidentally called GPIO16 as GPIO18, won't affect the duet connection and I didn't realize the board needed to be notched to fit against the Mini. So, I'm going to make one to use a regular PI 3/4. The 6HC and Mini have the 26pin connector 180 degrees to one another, so the 6HC will need to use a 26pin wire wrap socket.

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                    • Stephen6309undefined
                      Stephen6309
                      last edited by

                      Received the boards. Vey nicely made. Those pads for the cm4 connectors sure are small. Good thing I got the mask. Now for the long wait for those connectors.

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                      • Stephen6309undefined
                        Stephen6309
                        last edited by

                        Update: Mouser just emailed: Production Issues Reported - Delivery Unknown for the hirose connectors.

                        So, I made one to use the regular PI4. Waiting for the boards to test.

                        1 Reply Last reply Reply Quote 1
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