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    Accelerometer Usage

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    • CCS86undefined
      CCS86
      last edited by

      Same boat here.

      M955 P0 >>>> "Accelerometer not found"

      M955 P0 C"exp.pa22+exp.pa21" >>>> "Accelerometer not found on specified port"

      • Running RRF3.3 Stable

      • Wired with a VGA cable. I could probably take about 12" out of the cable length. I left it longer to keep the second ferrite noise filter in place.

      4986082c-4969-4222-9f2b-b637da171af1-image.png

      42283bc1-9899-4443-85d8-f9e480ac5bd3-image.png

      dc42undefined tekstyleundefined 2 Replies Last reply Reply Quote 0
      • dc42undefined
        dc42 administrators @CCS86
        last edited by

        @ccs86 I can't see anything wrong with the wiring or configuration command; so I guess it's an issue of cable length. How long is the cable? A 900mm long multicore cable is working OK for me on a Duet WiFi.

        Have you tried temporarily unplugging the PT100 daughter board?

        Duet WiFi hardware designer and firmware engineer
        Please do not ask me for Duet support via PM or email, use the forum
        http://www.escher3d.com, https://miscsolutions.wordpress.com

        CCS86undefined 1 Reply Last reply Reply Quote 0
        • CCS86undefined
          CCS86 @dc42
          last edited by

          @dc42 said in Accelerometer Usage:

          @ccs86 I can't see anything wrong with the wiring or configuration command; so I guess it's an issue of cable length. How long is the cable? A 900mm long multicore cable is working OK for me on a Duet WiFi.

          Have you tried temporarily unplugging the PT100 daughter board?

          I just tried unplugging the daughterboard and still not finding the accelerometer.

          I may try re-wiring with a CAT6 cable, if there aren't any other easier steps to take.

          Phaedruxundefined Ducati87undefined 2 Replies Last reply Reply Quote 0
          • Phaedruxundefined
            Phaedrux Moderator @CCS86
            last edited by

            @ccs86 Are you using a Maestro board?

            Z-Bot CoreXY Build | Thingiverse Profile

            CCS86undefined 1 Reply Last reply Reply Quote 0
            • CCS86undefined
              CCS86 @Phaedrux
              last edited by

              @phaedrux said in Accelerometer Usage:

              @ccs86 Are you using a Maestro board?

              Yes.

              Phaedruxundefined dc42undefined 2 Replies Last reply Reply Quote 0
              • Phaedruxundefined
                Phaedrux Moderator @CCS86
                last edited by

                @ccs86 said in Accelerometer Usage:

                @phaedrux said in Accelerometer Usage:

                @ccs86 Are you using a Maestro board?

                Yes.

                The lack of floating point unit makes accelerometer usage problematic. I didn't even think there was a build for the Maestro.

                Z-Bot CoreXY Build | Thingiverse Profile

                CCS86undefined 1 Reply Last reply Reply Quote 0
                • dc42undefined
                  dc42 administrators @CCS86
                  last edited by

                  @ccs86 when we are happy with the performance of input shaping on boards that have floating point hardware, we will look at the feasibility of doing a build for the Maestro.

                  Duet WiFi hardware designer and firmware engineer
                  Please do not ask me for Duet support via PM or email, use the forum
                  http://www.escher3d.com, https://miscsolutions.wordpress.com

                  1 Reply Last reply Reply Quote 0
                  • CCS86undefined
                    CCS86 @Phaedrux
                    last edited by

                    @phaedrux said in Accelerometer Usage:

                    @ccs86 said in Accelerometer Usage:

                    @phaedrux said in Accelerometer Usage:

                    @ccs86 Are you using a Maestro board?

                    Yes.

                    The lack of floating point unit makes accelerometer usage problematic. I didn't even think there was a build for the Maestro.

                    It is my understanding that accelerometer usage is okay, with the potential issue being in running input shaper. I'd still like to start measuring with the accelerometer for a baseline and for mechanically trying to improve resonance.

                    @dc42 Can confirm if that is the case.

                    1 Reply Last reply Reply Quote 1
                    • dc42undefined
                      dc42 administrators
                      last edited by

                      @ccs86 confirmed. Accelerometers should work with the Maestro, but I haven't tested that combination.

                      Duet WiFi hardware designer and firmware engineer
                      Please do not ask me for Duet support via PM or email, use the forum
                      http://www.escher3d.com, https://miscsolutions.wordpress.com

                      1 Reply Last reply Reply Quote 1
                      • Ducati87undefined
                        Ducati87 @CCS86
                        last edited by

                        @ccs86 I'm using a CAT7 cable but it not working...I don't know how to fix the problem.

                        dc42undefined 2 Replies Last reply Reply Quote 0
                        • dc42undefined
                          dc42 administrators @Ducati87
                          last edited by

                          @ducati87 I plan to test accelerometer support on the Maestro next week.

                          Duet WiFi hardware designer and firmware engineer
                          Please do not ask me for Duet support via PM or email, use the forum
                          http://www.escher3d.com, https://miscsolutions.wordpress.com

                          StaticRedundefined 1 Reply Last reply Reply Quote 0
                          • StaticRedundefined
                            StaticRed @dc42
                            last edited by

                            @dc42 hey so i got now everything working on my board. Also using now the resistor. But now what should i do with the data? How can i now use input shaper? I mean i can view it an hit analyze, but then? Not sure what i should do next.

                            1 Reply Last reply Reply Quote 0
                            • dc42undefined
                              dc42 administrators @Ducati87
                              last edited by dc42

                              @ducati87 I can confirm that accelerometer support does work on the Maestro. I have update https://duet3d.dozuki.com/Wiki/Accelerometers to include a photo showing the wiring I used. The ribbon cable is 1m long.

                              I also successfully ran an accelerometer using exp.pa21 and exp.pa22 for the CS and INT signals instead of TWD0 and TWCK0.

                              Duet WiFi hardware designer and firmware engineer
                              Please do not ask me for Duet support via PM or email, use the forum
                              http://www.escher3d.com, https://miscsolutions.wordpress.com

                              jay_s_ukundefined CCS86undefined 2 Replies Last reply Reply Quote 1
                              • jay_s_ukundefined
                                jay_s_uk @dc42
                                last edited by

                                @dc42 can an accelerometer be connected to a 3HC?

                                Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

                                dc42undefined 1 Reply Last reply Reply Quote 0
                                • dc42undefined
                                  dc42 administrators @jay_s_uk
                                  last edited by

                                  @jay_s_uk said in Accelerometer Usage:

                                  @dc42 can an accelerometer be connected to a 3HC?

                                  Not yet, but I will probably add support for that at some point.

                                  Duet WiFi hardware designer and firmware engineer
                                  Please do not ask me for Duet support via PM or email, use the forum
                                  http://www.escher3d.com, https://miscsolutions.wordpress.com

                                  jay_s_ukundefined 1 Reply Last reply Reply Quote 0
                                  • jay_s_ukundefined
                                    jay_s_uk @dc42
                                    last edited by

                                    @dc42 ok thanks. Would be helpful as I currently run all my tools off a 3HC and that's where all my wiring goes back to. Its also on the opposite side of my printer to the 6HC.

                                    Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

                                    1 Reply Last reply Reply Quote 0
                                    • CCS86undefined
                                      CCS86 @dc42
                                      last edited by

                                      @dc42 said in Accelerometer Usage:

                                      @ducati87 I can confirm that accelerometer support does work on the Maestro. I have update https://duet3d.dozuki.com/Wiki/Accelerometers to include a photo showing the wiring I used. The ribbon cable is 1m long.

                                      I also successfully ran an accelerometer using exp.pa21 and exp.pa22 for the CS and INT signals instead of TWD0 and TWCK0.

                                      Any ideas on what to try next?

                                      I am running:

                                      • CAT6 cable, less than 1m length.
                                      • CS is run on a conductor with an unused pair (CS on orange, nothing on orange/wht)
                                      • 1k resistor on SDO
                                      • CS >>> EXP_0
                                      • INT >>> EXP_1
                                      • M955 P0 C"exp.pa21+exp.pa22"

                                      Not found....

                                      b38b0819-272d-4948-a00e-8141e37e02e1-image.png

                                      dc42undefined 1 Reply Last reply Reply Quote 0
                                      • dc42undefined
                                        dc42 administrators @CCS86
                                        last edited by dc42

                                        @ccs86 try using the temp daughterboard connector instead of the 12864_EXP2 connector. If you have a temperature daughterboard installed, you can connect to the pins on top of it.

                                        Duet WiFi hardware designer and firmware engineer
                                        Please do not ask me for Duet support via PM or email, use the forum
                                        http://www.escher3d.com, https://miscsolutions.wordpress.com

                                        CCS86undefined 1 Reply Last reply Reply Quote 0
                                        • CCS86undefined
                                          CCS86 @dc42
                                          last edited by CCS86

                                          @dc42 said in Accelerometer Usage:

                                          @ccs86 try using the temp daughterboard connector instead of the 12864_EXP2 connector. If you have a temperature daughterboard installed, you can connect to the pins on top of it.

                                          I just tried like this and still get the not found error:

                                          M955 P0 C"twd0+twck0"

                                          (I assume that is a typo in your dozuki edit: Unknown pin name 'twcl0')

                                          (orange is CS... wht/grn is INT)
                                          fdc27cd1-5e60-432c-918e-028adafac891-image.png

                                          o_lampeundefined CCS86undefined 2 Replies Last reply Reply Quote 0
                                          • o_lampeundefined
                                            o_lampe @CCS86
                                            last edited by

                                            @ccs86
                                            do you have evidence that the accelerator board is OK?

                                            CCS86undefined 1 Reply Last reply Reply Quote 0
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