Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | PAJ7620U2 |
| Interface Type | I2C |
| Operating Voltage | 3.3V - 5V |
| Detection Range | 1cm - 15cm |
| Supported Gestures | 9 Types (Up, Down, Left, Right, Forward, Backward, Clockwise, Counter-Clockwise, Wave) |
| Communication Speed | Up to 400kHz |
| Package Dimensions | 22mm x 18mm x 3mm |
| Light Source | Integrated RGB Infrared LED |
| Compatibility | Arduino, Raspberry Pi, ESP32, STM32 |
| Operating Temperature | -20°C to 70°C |
Anonymous
Mar 31, 2026
Rating: 5/5
Compact and powerful
The form factor is tiny, which fits perfectly into my wearable prototype. The infrared sensing works well without being intrusive. Documentation could be better, but community examples helped.
Anonymous
Mar 27, 2026
Rating: 5/5
Best gesture sensor in this price range
I've tried a few different modules, and this PAJ7620U2 is by far the most reliable. It handles complex gestures like clockwise and counter-clockwise rotations very accurately.
Anonymous
Mar 22, 2026
Rating: 4/5
Great value, minor calibration needed
Good sensor for the price. I had to tweak the sensitivity settings in the code to stop it from triggering false positives, but once calibrated, it recognizes all 9 gestures reliably.
Anonymous
Mar 17, 2026
Rating: 5/5
Perfect for DIY Home Automation
This sensor works flawlessly with my Arduino project. The gesture recognition is surprisingly accurate even in low light conditions. Setup was easy using the provided library.
Anonymous
Mar 11, 2026
Rating: 5/5
Excellent response time
We used these in a student workshop for interactive displays. The response time is very fast, and the I2C interface makes wiring simple. Highly recommended for educational projects.
Anonymous
Mar 09, 2026
Rating: 4/5
Solid performance on ESP32
Integrated this with an ESP32 board without issues. The gesture detection is consistent. Just ensure you have pull-up resistors on the SDA and SCL lines if your board doesn't have them built-in.
Q: Is 5V logic safe for the I2C pins?
A: The module includes voltage regulation, so it can be powered by 5V. However, for the I2C data lines, we recommend using a 3.3V logic level or a level shifter if your microcontroller does not support 5V tolerant inputs.
Q: Can this sensor work through glass or plastic covers?
A: It can work through thin transparent materials, but thick or opaque covers will block the infrared light and prevent gesture detection. We recommend testing with your specific enclosure material.
Q: Does it support custom gesture training?
A: No, the PAJ7620U2 comes with 9 pre-defined gestures hardcoded in its firmware. It does not currently support user-defined custom gesture training.
Q: What is the maximum distance for reliable gesture detection?
A: The optimal detection range is between 1cm and 15cm. Beyond 15cm, the accuracy may decrease significantly depending on ambient light conditions.
Q: Does this module come with a library for Arduino?
A: Yes, there are several open-source libraries available on GitHub specifically for the PAJ7620U2 that work seamlessly with the Arduino IDE.
New Data Cable Storage Bag Travel Digital Charger Cord Organizer Protective Visible Multi-Use Portable Case
$1.64
Press Wash Blade for KBA Printing Presses - Model KBA105 Ink Scraper, 1160*40mm
$40.50
Genuine Pirelli Run-Flat Car Tire P7 225 245 275 285/35 40 45 R18 19 20 21
$336.00
Chuangshidai 100XP Compact Desktop Fume Extractor for Soldering Irons - Rapid Smoke Purification
$696.00
Multi-Function Kitchen Sink Rack - Dish Drying Organizer for Bowls and Plates
$33.10
Water Brush Kids Water Painting Book Graffiti Special Pen Water Sketchbook Eco-Friendly Safe Tap Water Refillable Pen Set
$2.16
No-Drill Over-Toilet Storage Rack for Bathroom Restroom Organizer
$8.90
Jingdezhen Blue and White Porcelain Antique Brush Washer, Traditional Chinese Painting Calligraphy Brush Rinse Basin, Large and Small Water Pots
$16.90
Sketch Blending Stump Set for Art Students - Highlight Detail Shadow Tool Kit with Replacement Sponge Heads for Beginners
$9.00
Changyiyou Outdoor Large-Capacity Wheeled Duffel Bag - Thickened Storage Backpack with Wheels for Camping Gear and Travel
$109.00
Lightweight Waterproof Dry Bag for River Trekking and Rafting – Travel Storage for Clothes, Shoes, Socks with Moisture-Proof Buckle, Roll-Top Carry Design
$15.80
Tupai 3D Self-Adhesive Wall Stickers, Custom Acrylic Logo Advertising Letters for Signage, Background Walls, and Image Wall Decor
$8.50
Durable Replacement DEUBLIN 525/357 Water Inlet/Outlet Rotary Union for Curved Surface Printing and Cup Printing Machines
$300.00
Detachable Large Water Barrel Rack for Mineral and Purified Water, Office Bottled Water Storage Stand with Wheels
$136.00
Tea Packaging Gift Box - Empty Ceramic Tea Canister for Longjing, Green Tea, White Tea, Ripe Pu'er, Universal Packaging
$68.00
Ruke Floating Skimmer Machine for Sewage Treatment Plant Biochemical Tanks
$12,064.00
Car Tire Stone Removal Tool Rock Picker Anti-Explosion Hook Stone Cleaner Car Hook Window Breaker Hammer
$2.07
Negotiable Price: Siemens 10mA Leakage Circuit Breaker, 2P 16A Ground Fault Protection
$130.00
Jingdezhen Ceramic Brush Washer Set, Blue and White Porcelain Calligraphy Ink Well and Pen Holder
$14.99
Beishanlang Outdoor Camping Foldable Lighting Stand Aluminum Alloy Portable Lamp Pole Bracket Camp Light Night Fishing Light
$49.00
Mobile Gas Cylinder Stand with Wheels - Plastic Base Tray for Propane Tanks and Water Buckets
$10.65
Fast Grocery Shopping Cart, Foldable Portable Home Trolley with Stair-Climbing Wheels, Lightweight Hand Truck for Seniors
$299.06
Car Tire Stone Hook - Multi-Function Rust-Resistant Tool for Removing Stones from Tires
$8.33
Zunjue 100% Cotton Watercolor Paper Mini Portable Pocket Sketchbook for Travel, 300g Cold Press Thickened Art Notebook for Gouache, Oil Pastel, and Colored Pencil
$3.32
Large Capacity Waterproof Phone Pouch for Outdoor Diving, Rafting, and Swimming - Touchscreen Compatible Waist Bag with Storage
$2.50
Custom Office Meeting Door Sign – Switchable 'Do Not Disturb' & 'Please Knock' Plate
$5.00
Multi-Function Over-Toilet Storage Rack – No-Drill, Multi-Tier Floor Stand for Bathroom Laundry Gap
$28.48
External Round Thread Welding Turning Tool, Threading Tool, Zhuzhou Alloy YT15 YG8 YW2 Lathe Tools, 20*25*30 Square
$17.00
Traditional Children's Rattle Drum, Classic Baby Hand-Shake Instrument, Plastic Toy for Newborn Boys and Girls
$2.90
Ultra-Soft Dual-Tip Blending Stump Set for Oil Pastels & Sketching – Washable Smudge Tools for Shading and Detail Work
$3.39
![[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range](https://www.gosteppe.com/cache/medium/product/74667/legacy-main-4da8cadc5fc82afe91b124e3.webp)
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
