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    BLTouch not working

    Scheduled Pinned Locked Moved
    Duet Hardware and wiring
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    • Phaedruxundefined
      Phaedrux Moderator @hsverre
      last edited by

      @hsverre said in BLTouch not working:

      Is it supposed to light up or something when it has power?

      Yes it should do a self test when it receives power and light up red.

      The photos of the wiring look correct, but if it's not getting power perhaps there is a break in the cable. I suggest doing a continuity test on your cables with a multimeter.

      The config looks ok for RRF3.

      Can you send M122 and M98 P"config.g" and post the results?

      Z-Bot CoreXY Build | Thingiverse Profile

      hsverreundefined 1 Reply Last reply Reply Quote 0
      • hsverreundefined
        hsverre @Phaedrux
        last edited by

        THanks a lot 🙂

        @phaedrux said in BLTouch not working:

        The photos of the wiring look correct, but if it's not getting power perhaps there is a break in the cable. I suggest doing a continuity test on your cables with a multimeter.

        I havent dont a continuity test but i have replaced all of the wires and connected the bltouch directly on the bord. But, with the same result.

        If you are absolutly shure a test will be a good idea i will do it. What cables are preferably the best to measure? Which of the cables are power to make it run the self-test when it gets power?

        Can you send M122 and M98 P"config.g" and post the results?

        m122
        === Diagnostics ===
        RepRapFirmware for Duet 2 WiFi/Ethernet version 3.3 (2021-06-15 21:44:54) running on Duet WiFi 1.02 or later + DueX5
        Board ID: 0JD0M-9P6M2-NWNS4-7JKDA-3S86M-TA1RL
        Used output buffers: 3 of 24 (20 max)
        === RTOS ===
        Static ram: 23876
        Dynamic ram: 75724 of which 56 recycled
        Never used RAM 14760, free system stack 184 words
        Tasks: NETWORK(ready,14.6%,231) HEAT(delaying,0.0%,314) Move(notifyWait,0.1%,364) DUEX(notifyWait,0.0%,24) MAIN(running,85.2%,445) IDLE(ready,0.1%,29), total 100.0%
        Owned mutexes:
        === Platform ===
        Last reset 00:09:44 ago, cause: power up
        Last software reset at 2022-02-13 20:28, reason: User, GCodes spinning, available RAM 14760, slot 0
        Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f000 BFAR 0xe000ed38 SP 0x00000000 Task MAIN Freestk 0 n/a
        Error status: 0x00
        Step timer max interval 0
        MCU temperature: min 14.3, current 19.7, max 19.9
        Supply voltage: min 12.3, current 12.4, max 12.5, under voltage events: 0, over voltage events: 0, power good: yes
        Heap OK, handles allocated/used 0/0, heap memory allocated/used/recyclable 0/0/0, gc cycles 0
        Driver 0: position 0, standstill, SG min/max not available
        Driver 1: position 0, standstill, SG min/max not available
        Driver 2: position 0, standstill, SG min/max not available
        Driver 3: position 0, standstill, SG min/max not available
        Driver 4: position 0, standstill, SG min/max not available
        Driver 5: position 0, standstill, SG min/max not available
        Driver 6: position 0, standstill, SG min/max not available
        Driver 7: position 0, standstill, SG min/max not available
        Driver 8: position 0, standstill, SG min/max not available
        Driver 9: position 0, standstill, SG min/max not available
        Driver 10: position 0
        Driver 11: position 0
        Date/time: 2022-02-14 20:08:42
        Cache data hit count 4294967295
        Slowest loop: 4.09ms; fastest: 0.17ms
        I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
        === Storage ===
        Free file entries: 10
        SD card 0 detected, interface speed: 20.0MBytes/sec
        SD card longest read time 2.6ms, write time 0.0ms, max retries 0
        === Move ===
        DMs created 83, maxWait 0ms, bed compensation in use: none, comp offset 0.000
        === MainDDARing ===
        Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
        === AuxDDARing ===
        Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
        === Heat ===
        Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
        === GCodes ===
        Segments left: 0
        Movement lock held by null
        HTTP is idle in state(s) 0
        Telnet is idle in state(s) 0
        File is idle in state(s) 0
        USB is idle in state(s) 0
        Aux is idle in state(s) 0
        Trigger is idle in state(s) 0
        Queue is idle in state(s) 0
        LCD is idle in state(s) 0
        Daemon is idle in state(s) 0
        Autopause is idle in state(s) 0
        Code queue is empty.
        === DueX ===
        Read count 1, 0.10 reads/min
        === Network ===
        Slowest loop: 15.64ms; fastest: 0.00ms
        Responder states: HTTP(2) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions
        HTTP sessions: 2 of 8

        • WiFi -
          Network state is active
          WiFi module is connected to access point
          Failed messages: pending 0, notready 0, noresp 0
          WiFi firmware version 1.26
          WiFi MAC address e8:68:e7:6a:de:1f
          WiFi Vcc 3.43, reset reason Turned on by main processor
          WiFi flash size 4194304, free heap 22368
          WiFi IP address 192.168.10.112
          WiFi signal strength -62dBm, mode 802.11n, reconnections 0, sleep mode modem
          Clock register 00002002
          Socket states: 0 0 0 0 0 0 0 0

        M98 P"config.g"
        HTTP is enabled on port 80
        FTP is disabled
        TELNET is disabled
        Error: No tool selected

        Phaedruxundefined 1 Reply Last reply Reply Quote 0
        • Phaedruxundefined
          Phaedrux Moderator @hsverre
          last edited by

          @hsverre said in BLTouch not working:

          connected the bltouch directly on the bord. But, with the same result.

          Have you tried connecting this BLtouch to one of your other printers? Perhaps the BLTouch itself isn't working.

          Z-Bot CoreXY Build | Thingiverse Profile

          hsverreundefined 2 Replies Last reply Reply Quote 0
          • hsverreundefined
            hsverre @Phaedrux
            last edited by

            @phaedrux said in BLTouch not working:

            @hsverre said in BLTouch not working:

            connected the bltouch directly on the bord. But, with the same result.

            Have you tried connecting this BLtouch to one of your other printers? Perhaps the BLTouch itself isn't working.

            I have don that some days ago. I will try again just to make shure thats not the problem.

            1 Reply Last reply Reply Quote 0
            • hsverreundefined
              hsverre @Phaedrux
              last edited by

              @phaedrux Could it be an option to reflash the os from scratch?

              Phaedruxundefined 1 Reply Last reply Reply Quote 0
              • Phaedruxundefined
                Phaedrux Moderator @hsverre
                last edited by

                @hsverre said in BLTouch not working:

                @phaedrux Could it be an option to reflash the os from scratch?

                I don't think it's going to make a difference.

                The easy way to test the BLtouch is to connect 5v and ground and see if it lights up and tests the pin.

                Z-Bot CoreXY Build | Thingiverse Profile

                hsverreundefined 1 Reply Last reply Reply Quote 0
                • hsverreundefined
                  hsverre @Phaedrux
                  last edited by

                  @phaedrux said in BLTouch not working:

                  The easy way to test the BLtouch is to connect 5v and ground and see if it lights up and tests the pin.

                  Thats the black and white wire?

                  1 Reply Last reply Reply Quote 0
                  • Phaedruxundefined
                    Phaedrux Moderator
                    last edited by

                    No. On a genuine BLTouch 5v is red and ground is black/brown.

                    Z-Bot CoreXY Build | Thingiverse Profile

                    hsverreundefined 2 Replies Last reply Reply Quote 0
                    • hsverreundefined
                      hsverre @Phaedrux
                      last edited by

                      @phaedrux

                      Are you refering to the brown on the PWM or the black on the Probe?

                      DIY-O-Sphereundefined 1 Reply Last reply Reply Quote 0
                      • hsverreundefined
                        hsverre @Phaedrux
                        last edited by

                        @phaedrux

                        The red and black/blue show 0 Volt

                        1 Reply Last reply Reply Quote 0
                        • DIY-O-Sphereundefined
                          DIY-O-Sphere @hsverre
                          last edited by

                          @hsverre
                          Doesn't matter but disconnect the probe from the board.....

                          (UTC+1)

                          hsverreundefined 1 Reply Last reply Reply Quote 0
                          • hsverreundefined
                            hsverre @DIY-O-Sphere
                            last edited by

                            @diy-o-sphere

                            I did that and the red and brown pin show 0 volt

                            DIY-O-Sphereundefined 1 Reply Last reply Reply Quote 0
                            • DIY-O-Sphereundefined
                              DIY-O-Sphere @hsverre
                              last edited by

                              @hsverre
                              You can connect the probe directly to 5v as @Phaedrux mentioned.

                              (UTC+1)

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                              • hsverreundefined
                                hsverre
                                last edited by

                                @diy-o-sphere

                                No one of the PWM ports gives 5 V, all of them show 0 V.

                                And both the BLTOuches works fine on another printer. So they are ok.

                                There has to be something wrong with the power on the PWM pins

                                DIY-O-Sphereundefined 1 Reply Last reply Reply Quote 0
                                • DIY-O-Sphereundefined
                                  DIY-O-Sphere @hsverre
                                  last edited by DIY-O-Sphere

                                  @hsverre
                                  There is a jumper on the duex for the use of an external 5v supply.
                                  Have you checked that?

                                  5aeb06f3-24fc-45a6-928b-b63eaecdce61-grafik.png

                                  (UTC+1)

                                  hsverreundefined 1 Reply Last reply Reply Quote 0
                                  • hsverreundefined
                                    hsverre @DIY-O-Sphere
                                    last edited by

                                    @diy-o-sphere
                                    I have played a bit back and forth with that pin. When in the position the schem show the PWM pins gives 2.658 V

                                    DIY-O-Sphereundefined 1 Reply Last reply Reply Quote 0
                                    • DIY-O-Sphereundefined
                                      DIY-O-Sphere @hsverre
                                      last edited by

                                      @hsverre
                                      Set the jumper that way.

                                      (UTC+1)

                                      hsverreundefined 2 Replies Last reply Reply Quote 0
                                      • hsverreundefined
                                        hsverre @DIY-O-Sphere
                                        last edited by

                                        @diy-o-sphere

                                        BTW Do I need an external powersupply for the Duex other than the 12 V?

                                        DIY-O-Sphereundefined 1 Reply Last reply Reply Quote 0
                                        • DIY-O-Sphereundefined
                                          DIY-O-Sphere @hsverre
                                          last edited by DIY-O-Sphere

                                          @hsverre
                                          Only with big 5v fans....

                                          Edit:
                                          To be exact larger consumers like LEDs, rc servos...... in total more than 1A on the 5v line.

                                          (UTC+1)

                                          hsverreundefined 1 Reply Last reply Reply Quote 0
                                          • hsverreundefined
                                            hsverre @DIY-O-Sphere
                                            last edited by

                                            @diy-o-sphere said in BLTouch not working:

                                            @hsverre
                                            Only with big 5v fans....

                                            I dont have any 5 V fan

                                            1 Reply Last reply Reply Quote 0
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