使用 Raspberry Pi Pico W 和 MicroPython 開發物聯網應用

pip install adafruit-ampy

cd module_library
ampy --port COMX put ssd1306.py

import machine
import utime
import ssd1306
from time import sleep
import network
import ntptime
import urequests

i2c = machine.SoftI2C(scl=machine.Pin(15), sda=machine.Pin(4))

oled_width = 128
oled_height = 64
oled = ssd1306.SSD1306_I2C(oled_width, oled_height, i2c)

# 初始化 UART
uart = machine.UART(0, baudrate=9600, tx=machine.Pin(0), rx=machine.Pin(1), timeout=1000)
uart.init(9600, bits=8, parity=None, stop=1)



# 初始化WiFi
sta_if = network.WLAN(network.STA_IF)
sta_if.active(True)


wifi_ssid = "XXXXX"
wifi_password = "XXXXXXX"


sta_if.connect(wifi_ssid, wifi_password)


# 顯示WiFi連接狀態
oled.fill(0)
oled.text('WiFi:', 0, 0)
if sta_if.isconnected():
    oled.text('connected', 40, 0)
else:
    oled.text('connceting', 40, 0)
oled.show()

#設定時區
TIME_ZONE = 8

# 取得NTP時間
#ntptime.settime()
for i in range(5): 
    try:
        ntptime.settime()
        break
    except OSError:
        print('Error connecting to NTP server, retrying...')
        utime.sleep(5)
else:
    print('Could not connect to NTP server after 5 retries.')
    

# 等待一段時間
utime.sleep(3)

while True:
    t = utime.localtime(utime.time() + TIME_ZONE * 3600)
    oled.fill(0)
    oled.text(str("%d/%02d/%02d" % (t[0], t[1], t[2])), 0, 0)
    oled.text(str("%02d:%02d:%02d" % (t[3], t[4], t[5])), 0, 16)
    oled.show()
    utime.sleep(1)       

import machine
import utime
import ssd1306
from time import sleep


i2c = machine.SoftI2C(scl=machine.Pin(15), sda=machine.Pin(4))

oled_width = 128
oled_height = 64
oled = ssd1306.SSD1306_I2C(oled_width, oled_height, i2c)


# 初始化 UART
uart = machine.UART(0, baudrate=9600, tx=machine.Pin(0), rx=machine.Pin(1), timeout=1000)
uart.init(9600, bits=8, parity=None, stop=1)

while True:
    # 讀取 PMS5003 資料
    data = bytearray(uart.read(32))
    
    # 判斷是否為正確的 PMS5003 資料
    if data is not None and len(data) >= 10 and data[0] == 0x42 and data[1] == 0x4d:
        pm1_cf = int.from_bytes(data[4:6], 'big')
        pm25_cf = int.from_bytes(data[6:8], 'big')
        pm10_cf = int.from_bytes(data[8:10], 'big')
        
        # 清除 OLED
        oled.fill(0)
        
        # 顯示 PMS5003 資料
        oled.text("PM1.0: %d ug/m3" % pm1_cf, 0, 22)
        oled.text("PM2.5: %d ug/m3" % pm25_cf, 0, 38)
        oled.text("PM10 : %d ug/m3" % pm10_cf, 0, 54)
        
        # 更新 OLED
        oled.show()
        
    utime.sleep(1)