SunFounder ESP32

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SunFounder ESP32 Starter Kit

Code

Note:

• Open the 5.8_turn_the_knob.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 ADC, Pin, PWM

import time

pot = ADC(Pin(35, Pin.IN)) # create an ADC object acting on a pin

# Configure the ADC attenuation to 11dB for full range

pot.atten(pot.ATTN_11DB)

# Create a PWM object

led = PWM(Pin(26), freq=1000)

while True:

# Read a raw analog value in the range of 0-4095

value = pot.read()

(continues on next page)

384 Chapter 3. For MicroPython User