Holybro H-Flow, Optical Flow and Distance Sensor Module

Holybro H-Flow, Optical Flow and Distance Sensor Module 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 of Holybro H-Flow

• 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

If you have any questions regarding our products, use the Motionew Support team page to consult our engineering team.

Holybro H-Flow Optical Flow and Distance Sensor Module – FAQ

1. What is the main function and design of the Holybro H-Flow module?
The H-Flow is an integrated optical flow and distance measurement sensor designed for UAVs. It combines visual motion sensing with precise altitude measurement to improve stability in GPS-denied or low-altitude flight environments.

2. What sensors and technologies are included in the H-Flow module?
It integrates an optical flow camera, a time-of-flight (ToF) distance sensor, and an onboard STM32 microcontroller for real-time motion processing. These components provide accurate position and altitude data for the flight controller.

3. What flight controllers and systems is the H-Flow compatible with?
The module is fully compatible with PX4- and ArduPilot-based systems, including Pixhawk, Holybro, and CUAV flight controllers. It connects via UART or I2C interfaces and works seamlessly with both fixed-wing and multirotor UAVs.

4. What are the purchasing and delivery options for the Holybro H-Flow?
The sensor is available as a standalone module including mounting hardware and cables. Motionew offers international shipping with delivery tracking and estimated lead times displayed during checkout.

5. Does Motionew support OEM and bulk purchase options for the H-Flow module?
Yes. OEM and volume purchase options are available for UAV developers and manufacturers. Buyers can request custom wiring, integration support, and bulk pricing through Motionew’s sales department.

6. What documentation and support resources are provided?
User manuals, wiring diagrams, and configuration guides are included in the product’s documentation section. Firmware updates, software integration instructions, and technical support are available from Holybro and Motionew’s engineering support teams.