PAJ7620U2 Gesture Recognition Sensor Module — I²C, 9 Gestures, Arduino Compatible

PAJ7620U2 Gesture Recognition Sensor — I²C, 9 Built-in Gestures

The PAJ7620U2 is an integrated gesture recognition sensor that detects 9 hand gestures via a built-in IR LED and photodetector array. Communicating over I²C, it works seamlessly with Arduino, STM32, Raspberry Pi, and other microcontrollers for touchless human-machine interface (HMI) applications.

Key Specifications

Parameter	Value
Sensor IC	PAJ7620U2
Interface	I²C (400kHz fast mode)
Supply Voltage	3.3V / 5V
Gesture Recognition	9 gestures (Up, Down, Left, Right, Forward, Backward, Clockwise, Anti-clockwise, Wave)
Detection Range	5–15cm
Operating Temperature	-40°C to +85°C

Why Choose PAJ7620U2?

• 9 built-in gestures — no complex algorithm needed on the host MCU
• I²C interface — only 2 wires required, easy to integrate
• 3.3V/5V dual voltage — compatible with both Arduino (5V) and Raspberry Pi (3.3V)
• Compact module — ready to use with onboard voltage regulator and pull-up resistors

Typical Applications

• Touchless menu navigation and HMI control
• Robotics gesture command input
• Smart home device control
• Interactive art installations
• Accessibility devices for hands-free operation

Package Contents

• 1× PAJ7620U2 Gesture Recognition Sensor Module

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