Probe not working on 6x board or Wemos D1

[lytke]

Wiki Search Terms

fluidnc probe not working
See also issue #1180

Controller Board

Issue exist with both 6x and Wemos D1 boards

Machine Description

QueenAnt Pro w/HBS57H closed loop controllers and FluidNC 6x board.
Tried with Wemos D1 controller not connected to any machine to isolate issue.

• different ports tried without luck, same result - probe inresponsive.

Input Circuits

No response

Configuration file

6x config
----------------
board: 6x
name: 6x Default
stepping:
  engine: I2S_STATIC
  idle_ms: 255
  pulse_us: 4
  dir_delay_us: 5
  disable_delay_us: 5
axes:
  shared_stepper_disable_pin: i2so.0
  x:
    steps_per_mm: 162
    max_rate_mm_per_min: 5000
    acceleration_mm_per_sec2: 15
    max_travel_mm: 700
    soft_limits: false
    homing:
      cycle: 2
      positive_direction: false
      mpos_mm: 1
      feed_mm_per_min: 100
      seek_mm_per_min: 800
      settle_ms: 500
      seek_scaler: 1.1
      feed_scaler: 1.1
    motor0:
      limit_neg_pin: gpio.32:pu:low
      limit_pos_pin: gpio.2:pu:low
      # limit_all_pin: gpio.2:pu:low
      hard_limits: true
      pulloff_mm: 1
      standard_stepper:
        step_pin: i2so.2
        direction_pin: i2so.1
        # disable_pin: i2so.0
  y:
    steps_per_mm: 162
    max_rate_mm_per_min: 5000
    acceleration_mm_per_sec2: 15
    max_travel_mm: 800
    soft_limits: false
    homing:
      cycle: 2
      positive_direction: false
      mpos_mm: 1
      feed_mm_per_min: 100
      seek_mm_per_min: 800
      settle_ms: 500
      seek_scaler: 1.1
      feed_scaler: 1.1
    motor0:
      limit_neg_pin: NO_PIN
      limit_pos_pin: NO_PIN
      limit_all_pin: gpio.26:pu:low
      hard_limits: true
      pulloff_mm: 1
      standard_stepper:
        step_pin: i2so.5
        direction_pin: i2so.4
        disable_pin: i2so.7
    motor1:
      limit_all_pin: NO_PIN
      limit_neg_pin: NO_PIN
      limit_pos_pin: NO_PIN
      hard_limits: true
      pulloff_mm: 1
      standard_stepper:
        step_pin: i2so.13
        direction_pin: i2so.12
        disable_pin: i2so.15
  z:
    steps_per_mm: 320
    max_rate_mm_per_min: 3000
    acceleration_mm_per_sec2: 10
    max_travel_mm: 150
    soft_limits: false
    homing:
      cycle: 1
      positive_direction: true
      mpos_mm: 150
      feed_mm_per_min: 100
      seek_mm_per_min: 800
      settle_ms: 500
      seek_scaler: 1.1
      feed_scaler: 1.1
    motor0:
      limit_neg_pin: NO_PIN
      limit_pos_pin: NO_PIN
      limit_all_pin: gpio.33:pu:low
      hard_limits: true
      pulloff_mm: 1
      standard_stepper:
        step_pin: i2so.10
        direction_pin: i2so.9
        disable_pin: i2so.8
i2so:
  bck_pin: gpio.22
  data_pin: gpio.21
  ws_pin: gpio.17
spi:
  miso_pin: gpio.19
  mosi_pin: gpio.23
  sck_pin: gpio.18
sdcard:
  card_detect_pin: NO_PIN
  cs_pin: gpio.5
control:
  safety_door_pin: NO_PIN
  reset_pin: gpio.35:low
  feed_hold_pin: gpio.36:low
probe:
  pin: gpio.34:low
  toolsetter_pin: NO_PIN
  check_mode_start: true
10V:
  forward_pin: gpio.15
  reverse_pin: gpio.14
  output_pin: gpio.13
  pwm_hz: 5000
  spinup_ms: 0
  spindown_ms: 0
  enable_pin: NO_PIN
  direction_pin: NO_PIN
  disable_with_s0: false
  s0_with_disable: true
  # speed_map: 0=0% 1000=100%
  speed_map: 0=0.000% 1000=0.000% 24000=100.000%
  off_on_alarm: false
  tool_num: 0
start:
  must_home: false
  deactivate_parking: false
coolant:
  flood_pin: gpio.12
  mist_pin: gpio.4
  delay_ms: 0
Laser:
  speed_map: 0=0% 1000=100%
  output_pin: gpio.25
  enable_pin: gpio.27
  tool_num: 100


Wemos D1 config:
-----------------
name: Wemos D1
stepping:
  engine: RMT
  idle_ms: 250
  pulse_us: 4
  dir_delay_us: 0
  disable_delay_us: 0
probe:
  pin: gpio.4:pu:low
  toolsetter_pin: NO_PIN
  check_mode_start: true
control:
  reset_pin: NO_PIN
  feed_hold_pin: NO_PIN
  fault_pin: NO_PIN
  estop_pin: NO_PIN
  safety_door_pin: NO_PIN
  cycle_start_pin: NO_PIN
  macro0_pin: NO_PIN
  macro1_pin: NO_PIN
  macro2_pin: NO_PIN
  macro3_pin: NO_PIN

Startup Messages

[MSG:RST]
[MSG:INFO: FluidNC v3.7.15 https://github.com/bdring/FluidNC]
[MSG:INFO: Compiled with ESP32 SDK:v4.4.4]
[MSG:INFO: Local filesystem type is littlefs]
[MSG:INFO: Configuration file:config.yaml]
[MSG:INFO: Machine 6x Default]
[MSG:INFO: Board 6x]
[MSG:INFO: I2SO BCK:gpio.22 WS:gpio.17 DATA:gpio.21]
[MSG:INFO: SPI SCK:gpio.18 MOSI:gpio.23 MISO:gpio.19]
[MSG:INFO: SD Card cs_pin:gpio.5 detect:NO_PIN freq:8000000]
[MSG:INFO: Stepping:I2S_static Pulse:4us Dsbl Delay:5us Dir Delay:5us Idle Delay:255ms]
[MSG:INFO: Axis count 3]
[MSG:INFO: Shared stepper disable I2SO.0]
[MSG:INFO: Axis X (1.000,701.000)]
[MSG:INFO:   Motor0]
[MSG:INFO:     standard_stepper Step:I2SO.2 Dir:I2SO.1 Disable:NO_PIN]
[MSG:INFO:  X Neg Limit gpio.32:low:pu]
[MSG:INFO:  X Pos Limit gpio.2:low:pu]
[MSG:INFO: Axis Y (1.000,801.000)]
[MSG:INFO:   Motor0]
[MSG:INFO:     standard_stepper Step:I2SO.5 Dir:I2SO.4 Disable:I2SO.7]
[MSG:INFO:  Y All Limit gpio.26:low:pu]
[MSG:INFO:   Motor1]
[MSG:INFO:     standard_stepper Step:I2SO.13 Dir:I2SO.12 Disable:I2SO.15]
[MSG:INFO: Axis Z (0.000,150.000)]
[MSG:INFO:   Motor0]
[MSG:INFO:     standard_stepper Step:I2SO.10 Dir:I2SO.9 Disable:I2SO.8]
[MSG:INFO:  Z All Limit gpio.33:low:pu]
[MSG:INFO: reset_pin gpio.35:low]
[MSG:INFO: feed_hold_pin gpio.36:low]
[MSG:INFO: Kinematic system: Cartesian]
[MSG:INFO: 10V Spindle Ena:NO_PIN Out:gpio.13 Dir:NO_PIN Fwd:gpio.15 Rev:gpio.14 Freq:5000Hz Period:8191]
[MSG:INFO: Laser Ena:gpio.27 Out:gpio.25 Freq:5000Hz Period:8191]
[MSG:INFO: Using spindle 10V]
[MSG:INFO: Flood coolant gpio.12]
[MSG:INFO: Mist coolant gpio.4]
[MSG:INFO: Probe Pin: gpio.34:low]
[MSG:INFO: Connecting to STA SSID:xxxxxx]
[MSG:INFO: Connecting.]
[MSG:INFO: Connecting..]
[MSG:INFO: Connected - IP is 192.168.1.65]
[MSG:INFO: WiFi on]
[MSG:INFO: Start mDNS with hostname:http://fluidnc.local/]
[MSG:INFO: SSDP Started]
[MSG:INFO: HTTP started on port 80]

Grbl 3.7 [FluidNC v3.7.15 (wifi) '$' for help]
ok
[VER:3.7 FluidNC v3.7.15:]
[OPT:MPHS]
[MSG:Machine: 6x Default]
[MSG:Mode=STA:SSID=xxxxxx:Status=Connected:IP=192.168.1.65:MAC=D8-13-2A-75-7A-E4]
ok

Grbl 3.7 [FluidNC v3.7.15 (wifi) '$' for help]

User Interface Software

gsender, openbuilds control, UGS

What happened?

Probe does simply not work, not reporting connected or not. Its a simple aligator clip attached to router bit and an aliminium plate.

When testing with wemos, I just used a simple jumper wire. Using same port as reset input works excelent but when changing same port to probe and restarting it turns unresponsive.

GCode File

No response

Other Information

No response

[lytke]

[lytke]

@bdring let me know if more details or testing is required.

[bdring]

I wanted to do some testing with your controller type and your config.

Some recent change broke the reading of the probe pins. It worked a little differently from other switches since the original Grbl days so the issues was not initially noticed. We have a pull request that should fix it.

#1181

You can compile the code from that PR. It works for me with your config. The PR should be in the next release. It changed a few other things, so some additional testing needs to be dome before the release.

[lytke]

Upgraded to https://github.com/bdring/FluidNC/releases/tag/v3.7.17 today and found that issue with probe was solved. Thank you to @bdring and @MitchBradley.