A4988

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Basic Parameters

• Compatible with : Marlin/Klipper/RRF firmware
• Overheat shutdown protection
• Ground short-circuit protection
• Load short-circuit protection

Pin Distribution

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Installation on FLY Mainboard

• Please note: Align EN with the upper 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 A4988 uses the standard jumper cap mode. After connecting all four jumpers, configure it for 16 microsteps.
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Klipper Reference Configuration

• The A4988 does not require driver configuration such as [tmc5160 stepper_x] or [tmc2209 stepper_x]. These are not needed and will prevent normal operation if configured.
• Set microsteps: to 16.
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