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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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Description
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
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 offers reliable and high-speed data transmission between the sensor and the flight controller.
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
- 40 mW 120° viewing angle 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)
Package Includes:
- 1x H-Flow
- 4-pin GH cable
- 2x M2.5 Screws
- 2x M2.5 Nylon Locking Hex Nuts
Dimension
With Case
PCB Only
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.4 ★★★★★
Based on 1465 reviews
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Product Reviews
★★★★★ 5
Keeps Aussie Entertained for Hours
Size: 4 Pieces, Size: 4 Pieces
This puzzle toy has quickly become one of my dog’s favorite sources of entertainment. It keeps him busy, challenged, and happy. The variety of difficulty levels gives him a challenge, and it is so fun to watch him work through the puzzles. Even when he is just playing with individual pieces, he is entertained.
It is also very user-friendly. Setup is simple, and it is not overly complicated for the owner to manage. Cleaning is surprisingly easy, too. The pieces wipe down well, and nothing traps food or slobber, which is a huge win compared to some other toys we have tried.
Functionality-wise, it is fantastic. The levels of difficulty actually work as intended, and I like being able to adjust them based on my dog’s mood. It is durable, too. The weight and sturdiness of the pieces keep them from sliding around too much during play, and they are tough enough to withstand my Aussie’s powerful chewing without damage. I also like how it is numbered so you can quickly move onto the next level without too much thought. With that, I have noticed the higher levels are challenging, and my Aussie has yet to get through them all. Eventually he gets bored and stops trying.
It is a high-quality, fun, and engaging toy that provides mental stimulation, holds up to rough play, and is easy for me to maintain. Definitely one of the best puzzle toys I have tried!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 19, 2025
★★★★★ 5
She loves it!
Size: 4 Pieces, Size: 4 Pieces
Tried it as soon as we received it. My dog is a doberman german shepherd mix. I used multiple levels to see what my dog can figure out. It kept her pretty occupied for about 15 minutes and then I readjusted the last level so she could figure it out. With that being said, it can definitely keep them busy for longer! This is going to be a great toy, we love it already. Very durable for my girl, she's a pretty heavy chewer. Very easy to clean because it's a rubber material. The overall puzzle design is also great, really gets them to think. Very easy to stuff treats or kibble inside. Lastly, I LOVE that it's blue and yellow! I wish more toys were in blue and yellow because dogs are color blind! I would definitely consider getting more pieces in the future.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
★★★★★ 4
Good product
Size: 6 Pieces
Fun for dogs with anxiety or bored. Easy to fill and clean with different options to build.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
★★★★★ 5
Durable and fun
Size: 4 Pieces, Size: 4 Pieces
I have a chewer who gets bored in the afternoon. She loves these Lego blocks. They’re sturdy enough for a big chewer and they hold her interest . She really enjoys figuring out how to get her breakfast!
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Reviewed in the United States on June 4, 2026
★★★★★ 3
Love the idea!
Size: 6 Pieces, Size: 6 Pieces
Love the idea of this product! Arrived 3/25/2026 and started using it the same day. Lab puppies (8 months old) loved it too, until one of the tabs was chewed off 😞
One of the puppies ate something (not this product) last week and was sick & finally threw up the rubber pieces he ate. So they can’t use the toys they love!
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Reviewed in the United States on April 1, 2026
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