SunFounder ESP32 User Manual

SunFounder ESP32 Starter Kit
Code
Note:
• Open the 6.4_reversing_aid.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 required libraries
from machine import Pin
import time
from lcd1602 import LCD
import _thread
# Initialize the buzzer
buzzer = Pin(14, Pin.OUT)
# Initialize the ultrasonic module
TRIG = Pin(26, Pin.OUT)
ECHO = Pin(25, Pin.IN)
(continues on next page)
3.36. 6.4 Reversing Aid 421

SunFounder ESP32 Specifications

General

Microcontroller	ESP32
Clock Speed	Up to 240MHz
Flash Memory	4MB
SRAM	520KB
Wi-Fi	802.11 b/g/n
GPIO Pins	36
ADC	12-bit
PWM Channels	16
Operating Voltage	3.3V
DC Current per I/O Pin	40mA
USB	Micro USB
Bluetooth	Bluetooth 4.2 BR/EDR and BLE
Analog Input Pins	18
DAC Pins	2
CPU	Xtensa dual-core 32-bit LX6