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A4988

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Basic Parameters​

  • Suitable for: Marlin/Klipper/RRF firmware
  • Over-temperature shutdown protection
  • Ground short-circuit protection
  • Load short-circuit protection

Pin Distribution​

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Installation on FLY Mainboard​

  • Note: Ensure the EN pin is aligned to the top-left corner during installation
  • FLY DP5, PRO X10, and MMU can only use TP drivers
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Drive Current Adjustment and Microstepping Explanation​

  • Drive current adjustment instructions
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  • The 4988 uses normal jumper cap mode; with all four jumpers connected, configure 16x microstepping
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Klipper Reference Configuration​

  • The 4988 does not require driver configuration such as [tmc5160 stepper_x] or [tmc2209 stepper_x]; it is not needed, and configuring it will prevent normal operation
  • Set microsteps: to 16
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