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Sound Sensor(EF05003)

Introduction​

Sound Sensor is particularly sensitive to sound intensity, and it can be used to detect ambient sound level.

ELECFREAKS PlanetX Noise Sensor

Characteristic​

Designed in RJ11 connections, easy to plug.

Specification​

ItemParameter
SKUEF05003
ConnectionRJ11
Type of ConnectionAnalog output
Working Voltage3.3V
Size55.8 x 23.8 mm

Outlook​

Quick to Start​

Materials Required and Diagram​

Connect the sound sensor to J1 port and the OLED module to IIC port in the Nezha expansion board as the picture shows.

MakeCode Programming​

Step 1​

Click "Advanced" in the MakeCode drawer to see more choices.

We need to add a package for programming, . Click "Extensions" in the bottom of the drawer and search with "PlanetX" in the dialogue box to download it.

Note: If you met a tip indicating that the codebase will be deleted due to incompatibility, you may continue as the tips say or build a new project in the menu.

Step 2​

Code as below:​

Link: https://makecode.microbit.org/_Vr4PPtfefeWw

You may also download it directly below:

Result​

The value of the sound(dB) in the current environment displays on the OLED module.

Python Programming​

Step 1​

Download the package and unzip it: PlanetX_MicroPython

Go to Python editor

We need to add enum.py and noise.py for programming. Click "Load/Save" and then click "Show Files (1)" to see more choices, click "Add file" to add enum.py and noise.py from the unzipped package of PlanetX_MicroPython.

Step 2​

Reference​


from microbit import *
from enum import *
from noise import *

while True:
    noise = NOISE(J1)
    noise_value = int(noise.get_noise())
    display.scroll(str(noise_value))

Result​

The value of the sound(dB) in the current environment displays on the micro:bit.

Relevant File​

Technique File​