WiFi模組通訊實作Part3 – IFTTT雲端平臺

 

 WiFi模組通訊實作Part3 – IFTTT雲端平臺

範例說明

IFTTT的意思是If This Then That的縮寫，這篇將會透過 IFTTT 與 LINE Notify，實現「觸發某件事，就自動發送 LINE 訊息」的功能。

 

IFTTT提供的網址格式如下
https://maker.ifttt.com/trigger/事件名稱/with/key/驗證碼

 

發送資料格式：

GET /trigger/事件名稱/with/key/驗證碼 HTTP/1.1 Host: maker.ifttt.com Connection: close

 

程式列表

"""  ePy_ESP01_ifttt.py    EPY           ESP01  -----------------  3V3           VCC  P8(UART1_TxD) RxD  P9(UART1_RxD) TxD  GND           GND   """   from machine import KEY  #獲取按鍵KEY庫 from machine import ADC from machine import PIN from machine import UART from machine import LED import utime   SSID = "MYAP"            # 填入要連線的WiFi熱點名稱 PASSWORD = "19760106"    # Wi-Fi熱點密碼 HOST = "maker.ifttt.com"        # 伺服器網址，不可動 PORT = 80 event = "IFTTT_LINE" key = "xxxxxxxxxxxxxxxx" str1 = "" DEBUG = True ledR = None   """ * Name: sendData * Description: this Function regulates how the AT Commands will ge sent to the ESP8266. * * Params: command - the AT Command to send *                 - timeout - the time to wait for a response *                 - debug - print to Serial window?(true = yes, false = no) * * Returns: The response from the esp8266 (if there is a reponse) """ def sendData(command,timeout,debug):   response = ""   uar_1.write(command)   utime.sleep_ms(timeout)   response = uar_1.read() # 從串口讀取資料   if(debug):     #if the "debug" variable value is TRUE, print the response on the Serial monitor.     cmd = response.decode('utf-8');     print("received:",cmd) # 列印接收到的資料   return response  #return the String response.   """ * Name: InitWifiModule * Description: this Function gives the commands that we need to send to the sendData() function to send it. * * Params: Nothing. * * Returns: Nothing (void). """ def InitWifiModule():   print("connecting to wifi")   sendData("AT\r\n",200,DEBUG)     str1 = sendData("AT+RST\r\n",1000,False)   if(DEBUG):     print("received:",str1) # 列印接收到的資料     # print("received:{}".format(str1)) # 列印接收到的資料     sendData("AT+GMR\r\n",1000,DEBUG)     CWJAP_CMD="AT+CWJAP=\"" + SSID + "\",\"" + PASSWORD + "\"\r\n"   sendData(CWJAP_CMD,25000,DEBUG)   utime.sleep_ms(3000)     sendData("AT+CWMODE=1\r\n", 1500, DEBUG)  #set the ESP8266 WiFi mode to station mode.   utime.sleep_ms(1000)     sendData("AT+CIFSR\r\n", 1500, DEBUG)  #Show IP Address, and the MAC Address.   utime.sleep_ms(1000)   # Start Function if __name__ == '__main__':   ledR = LED(LED.LED1)   light = ADC(4)   uar_1=UART(1,115200)   key_c = KEY(KEY.KEYC)    #創建按鍵C   key_d = KEY(KEY.KEYD)    #創建按鍵D     InitWifiModule()   print("--- Start ---")     light_val=0     try:     while True:       light_val = light.read()         if key_d.value() == 0:      #如果按鍵C被按下         ledR.on()         #https://maker.ifttt.com/trigger/{event}/with/key/{key}?value1=[1]&value2=[2]         request_str = "GET /trigger/" + event + "/with/key/" + key + "?value1=" + str(light_val) + " HTTP/1.1\r\n" \                     + "Host: " + HOST + "\r\n" \                     + "Connection: close\r\n\r\n"         request_lenth = str(len(request_str))    # 計算訊息的字串總長度           CIPSEND_CMD="AT+CIPSEND=" + request_lenth + "\r\n"         if(DEBUG):           print(CIPSEND_CMD)  # 顯示此訊息內容進行debug           print(request_str)            # 顯示此訊息內容進行debug           CIPSTART_CMD="AT+CIPSTART=\"TCP\",\"" + HOST + "\"," + str(PORT) + "\r\n"         sendData(CIPSTART_CMD,5000,DEBUG)           data = sendData(CIPSEND_CMD, 2000, DEBUG)         if 'ERROR' in data:   # 使用in運算子檢查           print('find \"ERROR\"')         if '>' in data:   # 使用in運算子檢查           print('find \">\"')         else:           print('not find \">\"')         # while (data.find(">")<0):           # utime.sleep_ms(100)           # if(uar_1.any()): # 當串口有可讀數據時             # data = uar_1.read()         sendData(request_str, 1000, DEBUG)         ledR.off()         utime.sleep_ms(5000)         if key_c.value() == 0:      #如果按鍵C被按下         break     finally:     pass   light.deinit() uar_1.deinit() key_c.deinit() key_d.deinit()

 

執行結果