Overview: 

The Holybro H-Flow is a compact optical flow and distance sensor module that combines a PixArt PAA3905E1 optical flow sensor, a Broadcom AFBR-S50LV85D distance sensor, and an InvenSense ICM-42688-P 6-axis IMU. This all-in-one design simplifies installation, while the onboard infrared LED enhances visibility in low-light conditions.

The H-Flow features a Pixhawk-standard 4-pin CAN connector, ensuring seamless integration with Pixhawk-compatible controllers via the CAN port. Utilizing the DroneCAN protocol, it offers reliable and high-speed data transmission between the sensor and the flight controller.

Features:

• • Integrated Optical Flow and Rangefinder Module
• • PixArt Optical Flow Sensor for Accurate Motion Tracking
• • Broadcom ToF Sensor for Precise Distance Measurement
• • Infrared LED for Optical Low-Light Performance
• • DroneCAN Protocol
  

Specifications:

• • PixArt PAA3905E1 Optical Flow Sensor
  • - Tracks under low light conditions of >5 lux
  • - Effective Viewing angle up to 42°
  • - Wide working ranges from 80mm up to 30m
  • - Up to 7.4 rad/s
  • - 40mW IR LED built onto the board for improved low-light operation
• • Broadcom AFBR-S50LV85D Time-of-Flight Distance Sensor
  • •   - Integrated 850 nm laser light source
    •   - Field-of-View (FoV) of 12.4° x 6.2° with 32 pixels
    •   - Typical distance sensing range up to 30m
    •   - Operation of up to 200k Lux ambient light
    •   - Works well on all surface conditions
    •   - Transmitter beam of 2° x 2° to illuminate between 1 and 3 pixels
• • InvenSense ICM-42688-P 6-Axis IMU
• • STM32F412CEU6 MCU
• • Pixhawk Standard CAN Connector (4 Pin JST GH)
• • Compact Form Factor
• • Software-Controlled CAN Termination
• • Weight: 15.2g (3.5g without casing)