### ex6-1 ###

# Ubidots 官網
https://ubidots.com/



### ex6-2 ###

from machine import Pin, ADC
import time
import network     
import urequests
import gc

adc_pin=Pin(32)            
adc = ADC(adc_pin)			# 建立ADC物件
adc.width(ADC.WIDTH_12BIT)		# 設定ADC範圍
adc.atten(ADC.ATTN_11DB)		# 將最大感測電壓設定成3.6V

# 連線至無線網路
sta=network.WLAN(network.STA_IF)
sta.active(True)   
sta.connect('無線網路名稱', '無線網路密碼')

while not sta.isconnected():
    pass

print('Wi-Fi連線成功')

device_label = "ESP32"			# 裝置名稱
variable_label = "temperature"		# 變數名稱
token = "Ubidots金鑰"

url = "https://things.ubidots.com/api/v1.6/devices/" + device_label

while True:
    gc.collect()
    vol = (adc.read()/4095) * 3.6
    tem = (vol - 0.5) * 100
    print('目前溫度:', tem)
    data = {variable_label:tem}
    headers = {"X-Auth-Token":token}
    res = urequests.post(url, json = data, headers = headers)

    if (res.status_code == 200):
        print("傳送成功")
    else:
        print("傳送失敗")
        print("錯誤碼：", res.status_code)

    res.close()
    time.sleep(5)