KE4027 Keyes DIY Electronic Brick Sound Sensor

KE4027 Keyes DIY Electronic Brick Sound Sensor

1. Introduction
The Keyes 2021 New DIY Electronic Brick Sound Sensor is a module specifically designed for detecting sound wave signals, suitable for various audio detection and voice-activated applications. Manufactured with eco-friendly materials, it is widely used in sound alarms, music interaction projects, and smart devices.

2. Features
- Eco-Friendly Material: Uses black eco-friendly materials compliant with modern safety standards.
- High Sound Sensitivity: Capable of detecting multiple audio frequencies and adapting to different sound signals.
- Anti-Reverse Interface: Equipped with a green anti-reverse connector for reliable connections.
- Wide Compatibility: Compatible with various microcontrollers (e.g., Arduino, Raspberry Pi) for easy integration into projects.
- Easy Installation: Simple wiring design suitable for beginners.

3. Specifications
| Parameter | Description |
|-----------------|--------------------------------------|
| Model | KE4027 |
| Sensor Type | Sound Sensor |
| Cable Length | 200mm |
| Operating Voltage | DC 5V |
| Interface Type | 2.54mm Pitch Anti-Reverse Interface |
| Detection Frequency | 7-20KHz |
| Power Consumption| Approx. 20mA (at 5V operation) |

4. Working Principle
The sound sensor detects sound signals through a microphone module. Its working principles are as follows:
- Power Connection: The module connects to a power supply via GND and VCC, supporting DC 5V operation.
- Signal Output: When sound is detected, the sensor outputs a high-level signal; when no sound is detected, it outputs a low-level signal.

5. Pin Description
| Pin Name | Description |
|----------|-----------------------------------------------------------------------------|
| VCC | Positive power supply connection (DC 5V input) |
| GND | Negative power supply connection |
| S | Signal output pin; outputs a high-level signal when sound is detected |