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    Connecting RGBW 24V LED strip to Duet 2 WIFi board

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    Duet Hardware and wiring
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    • o_lampeundefined
      o_lampe @csosa
      last edited by o_lampe

      @csosa
      That's confusing...are you sure about the GND pin you measured voltages against? Try using #pin2 from the expansion header.
      Did you try to run M98 P"config.g" to see if any errors pop up?

      Maybe there's an issue with using a heater output without defining a temp-sensor?
      Anyone who can chime in here?

      o_lampeundefined 1 Reply Last reply Reply Quote 0
      • o_lampeundefined
        o_lampe @o_lampe
        last edited by

        @o_lampe said in Connecting RGBW 24V LED strip to Duet 2 WIFi board:

        Maybe there's an issue with using a heater output without defining a temp-sensor?

        Something like

        M950 H4 C"nil"   ;  undefine heater4 pin
        M950 P4 C"exp.heater4" Q250
        
        csosaundefined 1 Reply Last reply Reply Quote 0
        • csosaundefined
          csosa @o_lampe
          last edited by csosa

          @o_lampe

          I ran the M98 P"config.g" and got back the following

          868b6dbf-6b4b-464d-8c4a-903b4ab421f0-image.png

          I am not sure is FTP and TELNET are suppose to be enabled but other than that it doesn't look like there are any errors in config.g

          I also switched the GND to pin 2 (which is normally connected to my BL Touch). I checked the voltage from all four wires and got the following.

          3d9de993-2330-4d87-883f-4416f5935065-image.png

          As you can see the voltage is all over the place expect for exp.heater7 which is working as it should. For heater pins 4 ,5 and 6 the voltage didn't change when I ran M42 P# S1.

          While I was testing the last two wires (going to exp.heater6 and exp.heater7) my cooling fan started to turn on, the WIFI would disconnect and the diag. light would briefly flash. It did this a few time randomly so I unplugged all the wires going to the expansion pins. Now every time I turn it on it connects to WIFI but after a few minutes it disconnects and the diag. LED starts flashing.

          Looks like I might have to erase the firmware and reinstall it before being able to test the "nil" function to undefine the heater pins.

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

            @csosa
            Maybe the fan went on, because you've used the same P# in a fan declaration?
            I've tested all 5 heaters without "nil", mentioning that was just a last straw. In my case, they were real heaters, which can make a difference.

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            • o_lampeundefined
              o_lampe @csosa
              last edited by

              @csosa
              From the Wiki:

              M42 switches a general purpose I/O pin. Use M42 Px Sy to set pin x to value y. The S field may be in the range 0..1 or 0..255.
              

              How does M42 know that S1 isn't meant as 1 of 255 ?
              Answer: use S1.0 to tell it to switch on 100%

              csosaundefined 1 Reply Last reply Reply Quote 0
              • csosaundefined
                csosa @o_lampe
                last edited by

                @o_lampe

                Since my board kept disconnecting from the wifi and the diag light start flashing. I erased the firmware and tried reinstall it again using Fallback procedure #2. I am not sure why but the firmware doesn't seem to install on the board, the diag light wont turn off. I'm using Bossa to write and verify the firmware, but afterwards the diag light wont turn off. Usually I'm able to just erase the board and reinstall the firmware using Bossa and later YAT to setup the WIFI and make updates but this time it doesn't look like Bossa is installing anything. I also tried installing the firmware using SAM-BA version 2.17 but it wouldn't connect either.

                o_lampeundefined 1 Reply Last reply Reply Quote 0
                • o_lampeundefined
                  o_lampe @csosa
                  last edited by

                  @csosa
                  A last straw is to remove all wires, steppers, probes from the board and try Bossa again, but I'm afraid your controller is partially dead.
                  It's probably time to put a new Duet board on your x-mas wishlist?

                  csosaundefined 1 Reply Last reply Reply Quote 0
                  • csosaundefined
                    csosa @o_lampe
                    last edited by

                    @o_lampe

                    Sadly I think you are right 😭

                    I did some research and I am thinking of ordering the Duet 3 mini 5+. Since it has a connector for the LED, hopefully it will be easier to set up.

                    However according to duet guide the LEDs have to be NeoPixel in order to work. Do you think it is possible to get away with using another led strip that used the same WS2812 LED used by NeoPixel. I'm asking because BTF-LIGHTING have basically the same set up but are cheaper.

                    o_lampeundefined 1 Reply Last reply Reply Quote 0
                    • o_lampeundefined
                      o_lampe @csosa
                      last edited by o_lampe

                      @csosa
                      I'm afraid the NeoPixel LED strip comes with a special interface, You'd still need 4 GPIO pins and the external driver board.
                      The BTF strip uses the same it seems (but not tested)

                      BTW: It's probably not a good time to buy LED strips....better wait until X-mas is over 😉

                      csosaundefined 1 Reply Last reply Reply Quote 0
                      • csosaundefined
                        csosa @o_lampe
                        last edited by

                        @o_lampe

                        You're probably right, but I want to finish this project as soon as possible lol. Thanks you for all your help, I will let you know if I can get the BTF-Lighting LEDs to work.

                        1 Reply Last reply Reply Quote 0
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