Voice Sound Sensor for Arduino

Voice Sound Sensor for Arduino

The purpose of this sensor is to measure the sound intensity of the environment around you, varying the state of your digital output if any sound signal is detected. It has an electric condenser microphone and can be used in alarm systems, for example.

The detection limit can be adjusted via the potentiometer present on the sensor that will regulate the digital output D0. However, to have a better resolution, it is possible to use the A0 analog output and connect to an AD converter, such as the one present in the Arduino, for example.

Specifications:

• Operation voltage: 3.3-5V DC;
• Adjustable sensitivity via potentiometer;
• Analog output;
• Easy installation;
• LED indicator for voltage;
• LED indicator for digital output.
• Operating Temperature: -40ºC to +80ºC
• Dimensions: 2.1 x 1.6 x 0.3 cm

Example: