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.
Variable Frequency Drive 7.5KW Brand New Original
$2,312.00
Inverted Water Dispenser Stand for Pure Water, Office Drinking Water Rack, Convenience Store and Supermarket Shelf
$116.79
RSL Electric Guitar Series by Rockschool - ABRSM Edition 2018 Update, Grades 0-8 Complete 9-Volume Set
$30.00
Handmade Soap and Baking Cake Silicone Mold - Round 6-Cavity
$16.50
Meile Childhood Sponge Stamp Set - Kids' Paint Printing Tools with Sponge Brushes for Kindergarten Art
$14.30
2019 Jiangxi Isuzu Ruimai Lingtuo DMAX - Brand New Original Thickened Wear-Resistant Tires
$302.80
Pirelli P7 Run-Flat Tires 225 245 255 275 35 40 45 50 R17 18 19 20 21
$340.00
Lint-Free Industrial Wiping Cloth - Oil-Removing Absorbent Paper for Car Paint Wax and Grease Removal
$123.00
Henkel Loctite 495 Adhesive Genuine 401 406 416 460 496 Instant Glue Strong Industrial Adhesive for Metal and Plastic
$6.00
Industrial Ultrasonic Emulsification and Dispersion System - Anti-Foam Vibration for Pipeline Inner Wall Cleaning
$31,250.00
Commercial Small Electric Food Warmer Display Case for Fried Chicken, Burgers, Pies, Egg Tarts, and Youtiao - Constant Temperature Heating Cabinet for Breakfast
$623.00
Universal Triangular Stand for Mineral Water Bottles – Inverted Dispenser Rack for Water Coolers and Bottled Water Extraction
$5.10
Manufacturer Supply By-Product Cleaning Equipment, Fully Automatic Cylindrical Pig Tripe Degreaser and Cleaner for Cattle and Sheep Stomachs
$1,600.00
CANDLE.LAB | DIY Aromatherapy Candle Supplies, Natural Refined White Beeswax Pellets, Handmade Soap Materials #27
$9.00
![No-Shave Hair Transplant by Yongxiang Dean Team [Premium Customization], Unlimited Graft Count, Pain Management for Transplant Area](https://www.gosteppe.com/cache/small/product/269234/legacy-main-b28b879c33f1fe08b5eba226.webp)
No-Shave Hair Transplant by Yongxiang Dean Team [Premium Customization], Unlimited Graft Count, Pain Management for Transplant Area
$200,000.00
Kitchen Sink Drainage Mat - Sloped Countertop Drying Pad with Foldable Narrow Edges, Faucet Splash Guard, Storage Mat
$3.57
UE5 Unreal Engine 5.2-5.7 Physical Assembly System Physics Plugin
$0.50
![[Damai Holds Micro-Needle Hair Transplant Patent] Female Hairline | Non-Shaven Transplant 1000 Units | Forehead](https://www.gosteppe.com/cache/small/product/269231/legacy-main-b004541637d9aaa9d8c19288.webp)
[Damai Holds Micro-Needle Hair Transplant Patent] Female Hairline | Non-Shaven Transplant 1000 Units | Forehead
$17,000.00
Air Baffle for ABB ACS550-X2 R8 IP21 VFD
$3,450.00
Outdoor Waterproof Shockproof EDC Storage Box, Sealed Gear Case for Small Items
$5.10
Zhizhi Lin Zexu Small Regular Script Diamond Character Card Kaishu Copybook Porcelain Blue Gold Characters Brush Calligraphy Practice Folding Card
$68.00
Maotaizi Dual-Tip Dual-Color Glitter Markers for Kids - Non-Toxic Soft Tip Colored Pens for Elementary Art
$16.90
Tire Removal Socket Wrench and Spare Tire Tool Kit for Zhengzhou Nissan Paladin, Aoting, and Dongfeng Ruiqi Pickup Trucks
$16.90
Zhimo Ke Xingkai Technique Calligraphy Copybook - Upgraded Edition with Text, Images, and Video Tutorials for Beginners
$30.60
Small-Scale Yogurt Processing Production Line, Blended Yogurt Fermentation Equipment, Organic Milk Filling Machine
$115,920.00
Compact Manual Hot Stamping Machine for Logos, Business Cards, Leather Wallets, Plastic, and Wood - Heat Embossing and Branding Tool
$500.76
DIY Handmade Soap Mold – Single Square Silicone Mold for Homemade Soap
$1.96
Wall-Mounted Facial Towel Dispenser Transparent Upside-Down Design
$4.50
Colorful Ground Thread Inserts 16ER/IR1.0/2.0/3.0/3.5 ISO AG55/60 for High-Hardness Quenched Steel
$19.80
Jiuzheng Tongming Submerged Solenoid Pulse Valve TMF-Y-25/40/50/62/76S, Dust Removal Pulse Blowing Valve
$150.00
![[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)
