ESP32 Microphone Sound Sensor Module Project
The ESP32 Microphone Sound Sensor Module project demonstrates how to use an ESP32 microcontroller to read sound levels from a microphone sound sensor. This project can be used to monitor ambient sound levels and trigger actions based on the detected sound intensity.
Components Needed
- ESP32 Microcontroller
- Microphone Sound Sensor Module
- Jumper Wires
- Breadboard
Circuit Setup
1.Connecting the Microphone Sound Sensor to ESP32:
Sound Sensor Output: Connect the analog output pin of the sound sensor module to GPIO 34 on the ESP32.
Power and Ground: Connect the VCC and GND pins of the sound sensor module to the 3.3V and GND pins of the ESP32, respectively.
Instructions
1.Setup
Initialize serial communication in the setup() function using Serial.begin(9600) for debugging purposes.
Set the sound sensor pin as an input using pinMode(soundSensorPin, INPUT).
2.Operation
In the loop() function:
- Read the analog value from the sound sensor using analogRead(soundSensorPin).
- Store the reading in the soundValue variable.
- Print the sound level to the Serial Monitor for monitoring and debugging.
3.Considerations
sensitivity: Adjust the position and sensitivity of the sound sensor module for accurate sound detection based on the project%E2%80%99s requirements.
Noise Filtering: Implement software filtering or averaging techniques to reduce noise and improve the accuracy of sound level readings.
thresholds: Define thresholds for sound levels to trigger specific actions or events, such as turning on an LED or sending a notification.
Applications
Noise Monitoring: Monitor ambient noise levels in a room or environment and take action if the sound level exceeds a predefined threshold.
Voice Activation: Detect sound or voice commands to activate or control devices.
Security Systems: Use sound detection as a part of a security system to detect unusual noises or activities.
Notes
Analog Readings: The ESP32’s ADC provides a resolution of 12 bits, resulting in analog values ranging from 0 to 4095.
Sound Sensitivity: Ensure the sound sensor module is placed in an appropriate location to capture the desired sound levels accurately.