SKU: 45624437228

Holybro H-Flow (Optical Flow and Distance Sensor Module)

Sale price$87.97 Regular price$97.74
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Description

Holybro H-Flow (Optical Flow and Distance Sensor Module)Empower your drone with precision navigation using the Holybro H Flow a compact, all in one optical flow and distance sensor module built for professional UAV developers and demanding industrial applications. This advanced module integrates a PixArt PAA3905E1 optical flow sensor, a Broadcom AFBR S50LV85D LiDAR rangefinder, and an InvenSense ICM 42688 P 6 axis IMU into a single lightweight unit. The result is high accuracy motion tracking and altitude

Empower your drone with precision navigation using the Holybro H-Flow - a compact, all-in-one optical flow and distance sensor module built for professional UAV developers and demanding industrial applications. This advanced module integrates a PixArt PAA3905E1 optical flow sensor, a Broadcom AFBR-S50LV85D LiDAR rangefinder, and an InvenSense ICM-42688-P 6-axis IMU into a single lightweight unit. The result is high-accuracy motion tracking and altitude measurement for stable flight control, even where GPS might be unavailable. An onboard infrared LED further enhances performance by illuminating surfaces in low-light conditions, ensuring reliable optical flow data during indoor or night operations. If you're building autonomous drones for inspection, mapping, or any other mission-critical tasks, the H-Flow delivers the robust sensor data and easy integration you need for success.

Key Features & Benefits

  • Integrated Optical Flow, Rangefinder & IMU: Combines three sensors in one compact module, reducing weight and wiring while simplifying installation, giving you more space and payload capacity for other critical components.
  • PixArt Optical Flow Sensor - Precise Motion Tracking: Offers high-precision optical flow data for accurate horizontal motion tracking, functioning in very low light thanks to the onboard IR LED. Your drone can maintain stable positioning and smooth navigation in dimly lit warehouses or at dusk.
  • Broadcom ToF Rangefinder - Reliable Distance Measurement: Delivers accurate range readings from as close as 80 mm up to 30 meters, enabling low-altitude hovering or high-ceiling indoor flights. Engineered to work under direct sunlight and on all types of surfaces, it ensures consistent performance indoors and outdoors.
  • Infrared LED for Low-Light Performance: Actively illuminates the ground for the optical flow camera, significantly improving feature tracking in darkness. This means your drone can navigate in GPS-denied, low-light environments without losing positional accuracy.
  • DroneCAN Protocol - High-Speed, Robust Communication: Leverages the DroneCAN protocol over its CAN bus interface, delivering reliable, high-bandwidth data transmission between the sensor and flight controller. Ideal for industrial UAV fleets and complex onboard networks.
  • Pixhawk-Standard CAN Connector - Plug & Play Integration: Features a Pixhawk-standard 4-pin JST-GH CAN connector for effortless installation with a Pixhawk or any DroneCAN-compatible autopilot. Software-controlled CAN termination is included, and firmware updates can be performed easily through DroneCAN tools.

Built for Professional & Industrial UAV Applications

Engineered with professional drone developers in mind, the Holybro H-Flow brings industrial-grade sensor performance to your UAV projects. Its lightweight design adds minimal payload, making it ideal for agile drones and long-endurance flights. Whether navigating indoors, operating in tight urban spaces, or under dense foliage, the H-Flow module empowers your flight controller to hold position with centimeter-level stability and follow terrain or maintain altitude with confidence. From precision agriculture to mapping, security, and industrial inspection, the H-Flow module enhances navigation accuracy and safety, letting your drone fly smarter and more securely.

With the Holybro H-Flow optical flow and distance sensor module on board, you get a plug-and-play navigation solution that blends technical precision with proven reliability - exactly what professional UAV applications demand. Elevate your drone's capabilities and experience more stable, intelligent, and autonomous flights on every mission.

Feature

  • 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

Specification

  • 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)

Reference Links

Package Includes:

  • 1x H-Flow
  • 4-pin GH cable
  • 2x M2.5 Screws
  • 2x M2.5 Nylon Locking Hex Nuts
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 45624437228

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Jacob A.
San Leandro, US
★★★★★ 5
Easy to install and works great!
Size: 26"+16"+12"
This was probably the easiest set of windshield wipers I've ever installed. It came out of the box with the correct locking hardware pre-installed for my car which made installation quick and easy. They felt solid in the hand, as if they're going to hold up over time and through the seasons, and looks to be made of comparable materials to OEM parts. Once installed, the blades worked exactly as expected. They're not slow or wobbly, and I no longer have any streaks on my front windshield. Great kit, 10/10 would recommend to anyone! Just make sure you're choosing the correct one for your make and model!
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Reviewed in the United States on April 29, 2026
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Mike Johnson
Massapequa, US
★★★★★ 5
Great performance and very easy to install.
Size: 26"+16"+12"
I own a 2019 Subaru Crosstrek that I recently purchased. I joined a social media group that is geared to Crosstrek owners to learn more about this model. I have read quite a few posts on replacing your wiper blades. Many owners reported that you had to use OEM blades from the dealer. Others reported that you could use aftermarket, but needed adapters. Finally, some people stated they just went to Amazon and ordered blades that fit perfectly. I chose the Amazon route...and am pleased that I did! I found these blades that stated they fit the Crosstrek. The price was decent, and the reviews were positive, so I ordered a set. They arrived very quickly and were well packed so that there were no damages. The set is three blades: the two front and one rear wiper. The quality appeared to be great, with solid frames and heavy rubber blades. Changing out the front wipers couldn't have been easier! You simply push a button on the blades and they slide right off the wiper arms, then the new blades slides on and snaps into place. I believe it literally took less than two minutes to change out both blades! The rear was slightly more difficult. You position the old blade perpendicular to the arm and it pops off, then you slip the new blade on and snap it onto the arm. NO ADAPTERS WERE REQUIRED! Front and rear blades attached perfectly out of the box! The performance is great as well. We recently had almost three days of steady rain (a very welcome storm for our drought-ridden Colorado!), and they kept up with the rain streak free! I've only had them on for a month or so, so I can't comment on their long-term durability, but the rubber is holding up very well so far. I'm not sure if they have these for all makes and models of vehicles, but if they do have yours, I would definitely recommend these for your vehicles!
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Reviewed in the United States on May 17, 2025
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Train Music
Louisville, US
★★★★★ 5
Perfect fit for my 2024 Subaru Ascent, clear visibility in heavy rain
Size: 26"+20+14
I purchased these wiper blades as a replacement for the originals on my 2024 Subaru Ascent, and they fit perfectly right out of the box. Installation was quick and straightforward, everything lined up exactly as expected with no adjustments needed. Once installed, the difference was immediately noticeable. The windshield clears smoothly with no streaking or skipping, even during steady rain. **What stood out:** * Exact fit for my 2024 Subaru Ascent * Easy installation * Quiet operation (no squeaking or chatter) * Very clear visibility during rainstorms (I get very nervous driving in the rain) After driving in several rainy conditions, my windshield stays crystal clear, which makes a big difference for nighttime driving and highway visibility. **Overall:** Great quality for the price and performs just as well as more expensive name-brand replacements. I would definitely purchase these again and recommend them to other Subaru Ascent owners looking for an easy, reliable replacement.
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Reviewed in the United States on February 28, 2026
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Cesar
Massapequa, US
★★★★★ 5
Good price good product 2003 crv
Great
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Reviewed in the United States on April 22, 2026
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Momto3QTs
Battle Creek, US
★★★★★ 5
Genuine Parts & Great Price
This is genuine Acura brake fluid which I needed for my MDX. This product works great and Amazon's price with free shipping cannot be beaten! Excellent on all fronts.
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Reviewed in the United States on December 1, 2025

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