KE4042 Keyes DIY Electronic Brick PAJ7620 Gesture Recognition Sensor

KE4042 Keyes DIY Electronic Brick PAJ7620 Gesture Recognition Sensor

1. Introduction
The Keyes 2021 New DIY Electronic Brick PAJ7620 Gesture Recognition Sensor is a module capable of real-time gesture detection, suitable for voice control, motion control, human-computer interaction, and other applications. It simplifies user-device interaction through intuitive gesture recognition.

2. Features
- Eco-Friendly Material: Made from black eco-friendly materials compliant with safety standards.
- High Sensitivity: Rapidly responds to gestures and supports recognition of multiple gesture types.
- Anti-Reverse Interface: Equipped with a blue anti-reverse connector for stable and reliable connections.
- Wide Compatibility: Compatible with various controllers like Arduino and Raspberry Pi for easy project integration.
- Ease of Use: Simplified connections suitable for beginners.

3. Specifications
| Parameter | Description |
|-------------------|--------------------------------------|
| Model | KE4042 |
| Sensor Type | PAJ7620 Gesture Recognition Sensor |
| Cable Length | 200mm |
| Operating Voltage | DC 3.3V-5V |
| Interface Type | I2C |
| Detection Range | 0-50cm (gesture distance) |
| Power Consumption | Approx. 15mA (at 5V operation) |

4. Working Principle
The PAJ7620 module detects gestures using built-in infrared sensors. Its working principles are as follows:
- Power Connection: The module connects to a power supply via VCC and GND, supporting DC 3.3V-5V operation.
- Signal Output: Gesture recognition data is transmitted via the I2C interface for corresponding control actions.

5. Pin Description
| Pin Name | Description |
|----------|-----------------------------------------------|
| VCC | Positive power supply (DC 3.3V-5V input) |
| GND | Negative power supply connection |
| SDA | Data line for I2C communication |
| SCL | Clock line for I2C communication |