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Use Guide LV8729 Module Drive

Note: When checking Vref, do not connect motor, but connect power and USB power. When tuning Vref, first turn to smallest in case of burn output

Micro-step setup:

  • Measured voltage: Vref --- Drive current: I --- Drive resistance: Rs = 0.1
  • 0.10V 0.2A 0.1Ω
  • 0.15V 0.3A 0.1Ω
  • 0.20V 0.4A 0.1Ω
  • 0.25V 0.5A 0.1Ω
  • 0.30V 0.6A 0.1Ω
  • 0.35V 0.7A 0.1Ω
  • 0.40V 0.8A 0.1Ω
  • 0.45V 0.9A 0.1Ω
  • 0.50V 1.0A 0.1Ω
  • 0.55V 1.1A 0.1Ω
  • 0.60V 1.2A 0.1Ω
  • 0.65V 1.3A 0.1Ω
  • 0.70V 1.4A 0.1Ω
  • 0.75V 1.5A 0.1Ω

LV8729 (THB6128)