The module features a plug and play design which allows quick connection without soldering. It supports a wide operating voltage range from 3.3V to 5V, making it compatible with common development platforms such as Arduino, ESP32, and other microcontrollers. The device produces a linear analog output ranging from 0.6V to 2.6V which corresponds to sound levels between 30 dBA and 130 dBA. This linear relationship simplifies data conversion and eliminates the need for complex signal processing algorithms.
Features
- High precision sound measurement using an instrument circuit and low noise microphone.
- Suitable for environmental noise monitoring and sound level analysis.
- Wide operating voltage range from 3.3V to 5.0V.
- Linear analog output corresponding directly to measured sound level.
- Simple signal conversion without complex algorithms.
- Plug and play design for easy integration with microcontroller systems.
- Compatible with Arduino and other embedded development platforms.
Specifications
- Measuring Range: 30 dBA to 130 dBA
- Measurement Error: plus or minus 1.5 dB
- Frequency Weighting: A weighted
- Frequency Response: 31.5 Hz to 8.5 kHz
- Time Characteristics: 125 ms
- Input Voltage: 3.3V to 5.0V
- Input Current: 22 mA at 3.3V and 14 mA at 5.0V
- Output Voltage: 0.6V to 2.6V
- Module Size: 60 mm x 43 mm
Usage Precautions
- Avoid touching the sensitive microphone film with fingernails or sharp objects.
- Do not place the module on conductive or semiconductor surfaces to prevent short circuits.
- It is recommended to place the module on a dry insulating surface or mount it using nylon spacers.
Pinout
| Num | Label | Description |
|---|---|---|
| 1 | A | Analog signal output 0.6V to 2.6V |
| 2 | + | Power VCC input 3.3V to 5.0V |
| 3 | - | Power ground 0V |
Documents and Resources
The module features a plug and play design which allows quick connection without soldering. It supports a wide operating voltage range from 3.3V to 5V, making it compatible with common development platforms such as Arduino, ESP32, and other microcontrollers. The device produces a linear analog output ranging from 0.6V to 2.6V which corresponds to sound levels between 30 dBA and 130 dBA. This linear relationship simplifies data conversion and eliminates the need for complex signal processing algorithms.
Features
- High precision sound measurement using an instrument circuit and low noise microphone.
- Suitable for environmental noise monitoring and sound level analysis.
- Wide operating voltage range from 3.3V to 5.0V.
- Linear analog output corresponding directly to measured sound level.
- Simple signal conversion without complex algorithms.
- Plug and play design for easy integration with microcontroller systems.
- Compatible with Arduino and other embedded development platforms.
Specifications
- Measuring Range: 30 dBA to 130 dBA
- Measurement Error: plus or minus 1.5 dB
- Frequency Weighting: A weighted
- Frequency Response: 31.5 Hz to 8.5 kHz
- Time Characteristics: 125 ms
- Input Voltage: 3.3V to 5.0V
- Input Current: 22 mA at 3.3V and 14 mA at 5.0V
- Output Voltage: 0.6V to 2.6V
- Module Size: 60 mm x 43 mm
Usage Precautions
- Avoid touching the sensitive microphone film with fingernails or sharp objects.
- Do not place the module on conductive or semiconductor surfaces to prevent short circuits.
- It is recommended to place the module on a dry insulating surface or mount it using nylon spacers.
Pinout
| Num | Label | Description |
|---|---|---|
| 1 | A | Analog signal output 0.6V to 2.6V |
| 2 | + | Power VCC input 3.3V to 5.0V |
| 3 | - | Power ground 0V |