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🔧 Add BIQU MicroProbe V2 pull-up warning #27008

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thisiskeithb
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Description

As the warning states:

BIQU MicroProbe V2's detection signal requires a strong pull-up. Some processors have weak internal pull-up capabilities, so it is recommended to connect the MicroProbe SIGNAL and GND wires to Z-MIN / Z-STOP instead of the dedicated PROBE port.

Pulled (and tweaked) text from the MicroProbe manual.

Note: This issue does not seem to be consistent, even when using the same type of motherboard across different builds, so it could be due to different V2 revisions/manufacturing.

Requirements

BIQU MicroProbe-based config

Benefits

Users will be alerted to potential issues when using the dedicated PROBE port instead of Z-MIN/Z-STOP ports with a MicroProbe.

Related Issues

No related issue, but this has come up across several Discord servers & Facebook groups many times now.

@thinkyhead thinkyhead merged commit 882421a into MarlinFirmware:bugfix-2.1.x Apr 24, 2024
62 checks passed
@thisiskeithb thisiskeithb deleted the pr/add_microprobe_v2_warning branch April 24, 2024 00:28
mikezs added a commit to mikezs/Marlin that referenced this pull request Apr 26, 2024
* bugfix-2.1.x: (111 commits)
  [cron] Bump distribution date (2024-04-25)
  🩹 IA-Creality minor cleanup
  🩹 Simple IA-Creality babystep patch
  🚸 Fix duplicate temperature report (MarlinFirmware#26952)
  [cron] Bump distribution date (2024-04-24)
  ✏️ MPCTEMP_START => MPC_STARTED (MarlinFirmware#27002)
  🔧 BIQU MicroProbe V2 pull-up warning (MarlinFirmware#27008)
  🎨 Format pins which fail validation (MarlinFirmware#27007)
  ✅  CI - Validate Pins Formatting (MarlinFirmware#26996)
  [cron] Bump distribution date (2024-04-23)
  🎨 Clean up after recent PRs
  [cron] Bump distribution date (2024-04-22)
  🐛 Fix Flags<N> data storage width (MarlinFirmware#26995)
  ✅ Add additional unit tests for types.h (MarlinFirmware#26994)
  ✅ Unit test improvements (MarlinFirmware#26993)
  🔧 Add RAMPS TMC SPI pins when !TMC_USE_SW_SPI (MarlinFirmware#26960)
  🐛 Fix PID upon entering PID_FUNCTIONAL_RANGE (MarlinFirmware#26926)
  [cron] Bump distribution date (2024-04-21)
  🎨Match unit test folder structure to code (MarlinFirmware#26990)
  ✅ Skip compile tests when editing unit tests (MarlinFirmware#26991)
  ...
RPGFabi pushed a commit to RPGFabi/Marlin that referenced this pull request Jun 15, 2024
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2 participants