4. Sound Sensor(EF05003)#
Sound Sensor is particularly sensitive to sound intensity, and it can be used to detect ambient sound level.
Designed in RJ11 connections, easy to plug.
|Type of Connection||Analog output|
|Size||55.8 x 23.8 mm|
4.6. Quick to Start#
4.6.1. 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.
4.7. MakeCode Programming#
4.7.1. 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.
4.7.2. Step 2#
4.7.3. Code as below:#
The value of the sound(dB) in the current environment displays on the OLED module.
4.8. Python Programming#
4.8.1. 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.
4.8.2. Step 2#
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))
The value of the sound(dB) in the current environment displays on the micro:bit.