from machine import Pin
from HCSR04 import HCSR04
import network               # 引入network模組，用於連接Wi-Fi
import time
import urequests             # 引入urequests模組，用於發送HTTP請求

# 連接到 Wi-Fi 網絡
sta = network.WLAN(network.STA_IF) # 建立Wi-Fi station(STA)物件
sta.active(True)                   # 啟用Wi-Fi介面
sta.connect('Wokwi-GUEST','')      # 連接到指定的Wi-Fi網絡，請替換成你的Wi-Fi SSID和密碼
while not sta.isconnected():       # 等待直到連接成功
    pass

# 定義 ThingSpeak API 的主機和 API 金鑰
host = 'http://api.thingspeak.com' # ThingSpeak API 的主機位址
api_key = '5LMSE9MIB2JUZCCN'       # 你的 ThingSpeak API 金鑰，請替換成自己的金鑰

sr04_L = HCSR04(trigPin = 25, echoPin = 26 )
sr04_R = HCSR04(trigPin = 19, echoPin = 18 )

LED_red = Pin(5, Pin.OUT)  # 紅色 LED
LED_green = Pin(17, Pin.OUT)  # 綠色 LED
LED_blue = Pin(16, Pin.OUT)  # 藍色 LED

try :
    while True :
        try :
            L = sr04_L.distance()
            R = sr04_R.distance()
            print ('Left Distance:' , L, 'cm' )
            print ('Right Distance:' , R, 'cm' )

            url = '%s/update?api_key=%s&field4=%s&field5=%s'%(host, api_key, L, R) # 製作上傳 URL
            r = urequests.get(url)             # 發送 GET 請求將數據上傳到 ThingSpeak
            if (L > 100 or R > 100):
                print('hello')

        except Exception as e:
            print (e.args [0])
        time.sleep (1)
except KeyboardInterrupt :
    print ('Program stopped!' )