Grove-Loudness Sensor-Based on amplifier LM2904&built-in microphone

The Grove-Loudness Sensor is based on amplifier LM2904 and a built-in microphone and is designed to detect the loudness of environmental sound.

Features

• Upgraded functionality: Based on LM2904 -- Dual, 36-V, 1.2-MHz operational amplifier with -40°C to 125°C operation
• Wide supply voltage range: in the range of 3.2V~5.2V
• Built-in signal filtering: input signal will go through two times filtering inside the module
• Adjustable output gain: a screw potentiometer that enables manual adjustments to the output gain
• Easy to use: compatible with Grove port, just plug-and-play

Description

The Grove-Loudness Sensor is designed to detect the loudness of environmental sound. Based on amplifier LM2904 and a built-in microphone, it amplifies and filters the high-frequency signal that is received from the microphone and outputs a positive envelope. This will make for Arduino's signal acquisition. The output value depends on the level of the sound input. In order to avoid unnecessary signal disturbances, the input signal will go through two times filtering inside the module. Lastly, there is a screw potentiometer that enables manual adjustments to the output gain.

We have developed more than 400 Grove modules, covering a wide range of applications that can fulfill various needs. Click to explore the Grove Sensor family and get started to Grove your Idea. For all Grove users (especially beginners), we provide you with guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your use of the product.

Comparisons

One More Thing

With the SenseCAP S2110 controller and S2100 data logger, you can easily turn the Grove into a LoRaWAN® sensor. Seeed not only helps you with prototyping but also offers you the possibility to expand your project with the SenseCAP series of robust industrial sensors.

The IP66 housing, Bluetooth configuration, compatibility with the global LoRaWAN® network, built-in 19 Ah battery, and powerful support from APP make the SenseCAP S210x the best choice for industrial applications. The series includes sensors for soil moisture, air temperature and humidity, light intensity, CO2, EC, and an 8-in-1 weather station. Try the latest SenseCAP S210x for your next successful industrial project.