SunFounder ESP32 Starter Kit
Note: A four-pin button is designed in an H shape. When the button is not pressed, the left and right pins are
disconnected, and current cannot flow between them. However, when the button is pressed, the left and right pins are
connected, creating a pathway for current to flow.
Code
Note:
• Open the 5.1_read_button_value.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.
import machine
import time
button = machine.Pin(14, machine.Pin.IN) # Button pin
led = machine.Pin(26, machine.Pin.OUT) # LED pin
while True:
# If the button is pressed by reading its value
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358 Chapter 3. For MicroPython User