MicroPython - ESP32 WiFi 사용하기

main.py

from machine import SoftI2C, Pin
from ssd1306 import SSD1306_I2C
from network import WLAN, STA_IF
from time import sleep, time

i2c = SoftI2C(sda=Pin(13), scl=Pin(14))
display = SSD1306_I2C(128, 64, i2c, addr=0x3C)

led = Pin(2, Pin.OUT)

wlan = WLAN(STA_IF)
wlan.active(True)
start_time = time()

if not wlan.isconnected():
    print('Connecting to network...')
    wlan.connect('devicemart', 'devicemart1')

    while not wlan.isconnected():
        led.value(1)
        sleep(0.3)
        led.value(0)
        sleep(0.3)

        if time() - start_time > 15 :
            print('WIFI Connected Timeout!')
            break

if wlan.isconnected():
    led.value(1)

    print('Network Information : ', wlan.ifconfig())

    display.fill(0)
    display.text('IP/Subnet/GW:', 0, 0)
    display.text(wlan.ifconfig()[0], 0, 20)
    display.text(wlan.ifconfig()[1], 0, 38)
    display.text(wlan.ifconfig()[2], 0, 56)
    display.show()