SunFounder ESP32 Starter Kit
connected to IO26 is used as an indicator during the calibration process. When the LED is lit, it signifies the start of
calibration, and when it is turned off, it indicates the end of calibration.
As you wave your hand over the photoresistor, the value of the photoresistor will change accordingly. Utilize this change
to control the buzzer and play different musical notes. Each variation in the photoresistor’s value can be mapped to a
specific musical note, allowing the buzzer to produce a melody as you wave your hand over the photoresistor.
Wiring
Code
Note:
• Open the 6.3_light_theremin.py file located in the esp32-starter-kit-main\micropython\codes
path, or copy and paste the code into Thonny. Then, click “Run Current Script” or press F5 to execute it.
• Make sure to select the “MicroPython (ESP32).COMxx” interpreter in the bottom right corner.
from machine import Pin, PWM, ADC
import time
# Initialize LED pin
led = Pin(26, Pin.OUT)
# Initialize light sensor
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3.35. 6.3 Light Theremin 417
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