Example Code for Pyboard-Analog Sound Sensor

Hardware Preparation

• pyboard V1.1 x1
• Gravity: I/O Expansion Shield for Pyboard x1
• Gravity 3pin sensor Cable (or several DuPont Cables) x1
• MicroUSB Cable x1
• Gravity: Analog Sound Sensor x1

Software Preparation

• uPyCraft IDE, Click to download uPyCraft IDE. The uPyCraft IDE is recommended.
• uPyCraft Github: Github repo
• PuTTY, click to download PuTTY

Wiring Diagram

As shown below,connect the sensor to the X5 port of the expansion shield.

Sample Code

# Analog sound sensor is used to measure the sound.
# Hardware : analog sound sensor, pyboard v1.1
# connect:
#     sensor    pyboard
#     VCC       3V3
#     GND       GND
#     data      X5
from pyb import ADC,Pin
import time
adc=ADC(Pin('X5'))   # Connect sensor to 'X5'
while True:
  val=adc.read()     # Reed the analog value
  print(val)
  time.sleep(0.1)

Result

Copy the sample code in the uPyCraft IDE, save it, then click the DownloadAndRun button, you will see the value of the sound.
As shown in the picture below, when there is sound, the value will increase significantly.