Analog Sound Level Sensor Module - High-Sensitivity Microphone for Electronic Projects

Feature Description:

1. Equipped with a high-quality audio processing chip.
2. Adjustable audio output signal amplitude for customizable sound detection; offers stable performance with adjustable gain options.
3. Incorporates single-point grounding wiring to minimize loop gain and enhance audio signal quality.
4. Features fixing bolt holes for easy and secure installation.
5. Includes a standard ARDUINO interface for direct connection to ARDUINO development boards.
6. Offers excellent sensitivity with a built-in amplifier circuit; adjustable gain enables the conversion of sound intensity into voltage signals through AD conversion.
7. Designed to be compatible with ARDUINO platforms and sensor interfaces.

Interface Description (3-wire system):

• VCC: 5V voltage
• GND: External GND
• OUT: Analog voltage signal output, signal amplitude VCC/2

Product Usage:

This module converts environmental sound into electrical signals, suitable for sound detection. The A0 output provides an analog signal, which can be processed using AD operations performed at the A0 terminal for secondary development or direct application. It can also be connected directly to sound devices for audio playback.

Instructions:

1. Connect VCC and GND; the module power indicator will activate. Adjust the module's potentiometer to the desired position. The potentiometer primarily adjusts the amplitude of the AO output analog signal. Turning it clockwise increases the AO output amplitude, whereas counterclockwise decreases it. Adjusting it fully counterclockwise grounds the microphone sensor's end.
2. The AO end can be interfaced with an ADC chip or microcontroller's ADC pin for ADC operation to capture audio amplitude changes for flexible development. Alternatively, it can be connected directly to speakers or headphones for amplified audio playback.

Package Includes:

• 1 x Sound sensor module