M5Stack Gesture Unit is a compact 3D gesture sensor built around the PAJ7620U2 gesture sensor for responsive touchless gesture control. This robot interaction sensor gives M5Stack and ESP32 projects a reliable way to detect hand movement without buttons, switches, or direct contact. Description M5Stack Gesture Unit communicates over I2C and ships with built-in support for nine common gestures, including directional motion, forward and backward movement, clockwise rotation, counterclockwise rotation, and quick wave detection. As a 3D gesture sensor, it is designed for fast updates, good ambient light immunity, and low power operation, making the PAJ7620U2 gesture sensor a strong fit for embedded interfaces that need stable touchless gesture control and natural robot interaction sensor behavior. Features M5Stack Gesture Unit uses the PAJ7620U2 gesture sensor for compact hand-motion recognition. This 3D gesture sensor supports nine built-in gestures for practical touchless gesture control. Fast update rates up to 240Hz help the robot interaction sensor feel immediate and smooth. Low current draw around 2.2mA makes it easier to deploy in portable and low-power builds. Built-in infrared LED and optical structure support operation in dim environments. Specifications Product M5Stack Gesture Unit Main Sensor PAJ7620U2 gesture sensor Category 3D gesture sensor Interface I2C @ 0x73 Gesture Frequency Typical 120Hz, Max 240Hz Gesture Support 9 built-in gestures with software expansion potential Recognition Distance 5cm to 15cm Ambient Light Immunity
