Holybro PMW3901 Optical Flow Sensor


Product Description:

The Holybro PMW3901 Optical Flow Sensor is a UART version of PMW3901 module with built in BEC. It comes pre-solder with 6pin JST GH connector made to connect right to TELEM ports on most flight controller. Compatible with PX4 (PX4 Guide) & Ardupilot (Data format same as discontinued product CX-OF).

Technical details:

  • Dimension: 14x11x5mm
  • Weight: 0.6g
  • Interface: UART
  • Baud rate: 19200
  • FPS: 95hz
  • Power: 2.0~3.6V
  • Current: 10mA

Data Format:

  • byte0: header (0xFE)
  • byte1: number of data bytes (0x04)
  • byte2: x-motion high byte
  • byte3: x-motion low byte
  • byte4: y-motion high byte
  • byte5: y-motion low byte
  • byte6: checksum
  • byte7: surface quality
  • byte8: footer (0xAA)

Package Included

  • 1x PMW3901
  • 1x GH6P 170mm Cable(installed)
  • 1x TPU Protective Case Shell

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