Software; Faq - SeeedStudio Grove Loudness Sensor Manual

Software

Step 1. Follow Setting Software to configure the development environment.
Step 2. Git clone the Github repository.
cd ~
git clone https://github.com/DexterInd/GrovePi.git
Step 3. Excute below commands to monitor the loudness.
cd ~/GrovePi/Software/Python
python grove_loudness_sensor.py
Here is the grove_loudness_sensor.py code.
import time
import grovepi
# Connect the Grove Loudness Sensor to analog port A0
# SIG,NC,VCC,GND
loudness_sensor = 0
while True:
try:
# Read the sound level
sensor_value = grovepi.analogRead(loudness_sensor)
print("sensor_value = %d" %sensor_value)
time.sleep(.5)
except IOError:
print ("Error")
Step 4. We will see the loudness status as below.
pi@raspberrypi:~/GrovePi/Software/Python
sensor_value = 135
sensor_value = 23
sensor_value = 196
sensor_value = 258
sensor_value = 98
sensor_value = 131

FAQ

Q1: What is the difference between Grove-Loudness sensor and Grove - Sound Sensor?
A1: The Grove-Loudness sensor have screw potentiometer to adjust the output gain.
Schematic Online Viewer
$ python grove_loudness_sensor.py