Gravity: Analog Sound Level Meter
Overview
The SEN0232 is a decibel meter module designed for measuring environmental noise levels between 30dBA and 130dBA. It operates on a wide input voltage range of 3.3V to 5.0V and provides a linear analog output that is compatible with most microcontrollers. The board is part of the DFRobot Gravity ecosystem, featuring a plug-and-play interface for rapid prototyping.
Why Choose This Part
The module features a high-quality microphone and professional calibration circuitry to maintain 1.5dB accuracy. Its Gravity interface simplifies wiring, while the low power consumption (under 22mA) makes it suitable for battery-powered remote sensing nodes.
Applications
Key Specifications
Getting Started
Connect the module to an analog input pin on an Arduino or ESP32 using the included Gravity cable. Use the linear formula to convert the output voltage (0.6V to 2.6V) into a decibel value as specified in the technical documentation. For best results, ensure the microphone is not obstructed and is shielded from direct wind.
