1. Introduction
The Keyes 2021 new DIY electronic building block sound sensor is a module specifically designed for detecting sound wave signals, suitable for various audio signal detection and sound activation devices. Made with environmentally friendly materials, this module is widely used in projects such as sound alarms, music interaction, and smart devices.
2. Features
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Environmentally friendly materials : The modules use black environmentally friendly materials that meet modern safety standards.
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High sound sensitivity : It can detect a variety of audio frequencies and adapt to different sound signals.
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Anti-reverse insertion interface : Equipped with green anti-reverse insertion terminals to ensure reliable connection.
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Wide compatibility : Compatible with a variety of microcontrollers (Arduino, Raspberry Pi, etc.), making it easy to integrate into various projects.
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Easy to install : Simple wiring, suitable for beginners.
3. Specifications
|
parameter |
describe |
|---|---|
|
model |
KE4027 |
|
Sensor type |
Sound sensor |
|
Wire length |
200mm |
|
Operating voltage |
DC 5V |
|
Interface type |
Anti-reverse interface with a spacing of 2.54mm |
|
Detection frequency |
7-20kHz |
|
Power consumption |
Approximately 20mA (when operating at 5V) |
4. Working Principle
The sound sensor detects the occurrence of sound signals through a microphone module. Its working principle is as follows:
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Power connection : The module is connected to the power supply via GND and VCC, and supports DC 5V operation.
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Signal output : When the sound sensor detects sound, it outputs a high-level signal; when no sound is detected, it outputs a low-level signal.
5. Foot position description
|
Pin Name |
describe |
|---|---|
|
VCC |
Connect the positive power supply terminal; supports DC 5V input. |
|
GND |
negative power connection |
|
S |
The output signal terminal outputs a high level when sound is detected. |