[Day27] Esp32 + IFTTT + Google Sheet

13th鐵人賽自我挑戰 esp32s ifttt google sheet

ks_wwlin

2021-09-28 19:30:49

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1.前言

今天要講解如標題一樣，Google Sheet是Google所開發的試算表，所以我們要用Google Sheet來存放我們所感測到的數值，那廢話不多說，直接開始。

2.創建事件

依照Day25 Esp32s + IFTTT + LINE這篇一樣設置Webhook，到Then That會稍微不同(因為要選擇Google sheet服務)

相同在搜尋欄查找Google Sheet

圖片取自：IFTTT

選擇左邊Add row to spreadsheet

圖片取自：IFTTT

這邊跟上次設置Line相同，可以自己調整格式

Spreadsheet name 創建時檔案的名稱
Formatted row 每個欄位要填寫何種資料
Drive folder path 資料夾在雲端的路徑

圖片取自：IFTTT

如果設定完就可以將事件創建起來囉，後續一樣到Webhook的Documentation，測試是否可以執行成功。
※EventName記得改

圖片取自：IFTTT

觸發成功後，到Google雲端硬碟查看是否多出IFTTT資料夾

圖片取自：IFTTT

如果沒有此資料夾，可能是上面Google Sheet設定中有更動資料夾位置，又或者目前IFTTT連接Google Sheet有問題。

點開後會看見試算表，可以點開看看是否有你剛剛輸入的數值

圖片取自：Google

如果可以看見就代表測試成功囉~

3.接線圖

圖片取自：使用者繪製

Esp32s GND -> St01（C） -
Esp32s Vcc(5V) -> St01（C） +
Esp32s 22 -> St01（C） SCL
Esp32s 21 -> St01（C） SDA

4.程式碼

第10、11行，需更改ssid及password
第14行，需更改事件名稱及Key

#include <WiFi.h>
#include <WiFiClient.h>

#include <AHT10.h>
#include <Wire.h>
uint8_t readStatus = 0;
AHT10 myAHT10(AHT10_ADDRESS_0X38);

// Replace with your SSID and Password
const char* ssid     = "xxxx";
const char* password = "xxxxxxxx";

// Replace with your unique IFTTT URL resource
const char* resource = "/trigger/Esp32sAHT10GoogleSheet/with/key/cEf5MJB"; 
// How your resource variable should look like, but with your own API KEY (that API KEY below is just an example):
//const char* resource = "/trigger/myAHT1011_readdata/with/key/nxxxxxxL2d_XXXXXgTlNSrxMJdmqy5";

// Maker Webhooks IFTTT
const char* server = "maker.ifttt.com";
// Time to sleep
uint64_t uS_TO_S_FACTOR = 1000000;  // Conversion factor for micro seconds to seconds
// sleep for 30 minutes = 1800 seconds
uint64_t TIME_TO_SLEEP = 60;        //1 minutes

void setup() {
  Serial.begin(115200);
  myAHT10.begin();           // 初始化 
  delay(1000);  
}

void loop() {
  initWifi();
  makeIFTTTRequest();
  //delay(20000);       //Send Time
  // enable timer deep sleep
    esp_sleep_enable_timer_wakeup(TIME_TO_SLEEP * uS_TO_S_FACTOR);    
    Serial.println("Going to sleep now");
    // start deep sleep for 3600 seconds (60 minutes)
    esp_deep_sleep_start();
}

// Establish a Wi-Fi connection with your router
void initWifi() {
  Serial.print("Connecting to: "); 
  Serial.print(ssid);
  WiFi.begin(ssid, password);  

  int timeout = 10 * 4; // 10 seconds
  while(WiFi.status() != WL_CONNECTED  && (timeout-- > 0)) {
    delay(250);
    Serial.print(".");
  }
  Serial.println("");

  if(WiFi.status() != WL_CONNECTED) {
     Serial.println("Failed to connect, going back to sleep");
  }

  Serial.print("WiFi connected in: "); 
  Serial.print(millis());
  Serial.print(", IP address: "); 
  Serial.println(WiFi.localIP());
}

// Make an HTTP request to the IFTTT web service
void makeIFTTTRequest() {
  Serial.print("Connecting to "); 
  Serial.print(server);
  
  WiFiClient client;
  int retries = 5;
  while(!!!client.connect(server, 80) && (retries-- > 0)) {
    Serial.print(".");
  }
  Serial.println();
  if(!!!client.connected()) {
    Serial.println("Failed to connect...");
  }
    Serial.print("Request resource: "); 
  Serial.println(resource);
  // Temperature in Celsius
  String jsonObject = String("{\"value1\":\"") + myAHT10.readTemperature() + "\",\"value2\":\"" + myAHT10.readHumidity() + "\"}";
  client.println(String("POST ") + resource + " HTTP/1.1");
  client.println(String("Host: ") + server); 
  client.println("Connection: close\r\nContent-Type: application/json");
  client.print("Content-Length: ");
  client.println(jsonObject.length());
  client.println();
  client.println(jsonObject);
        
  int timeout = 5 * 10; // 5 seconds             
  while(!!!client.available() && (timeout-- > 0)){
    delay(100);
  }
  if(!!!client.available()) {
    Serial.println("No response...");
  }
  while(client.available()){
    Serial.write(client.read());
  }
    Serial.println("\nclosing connection");
  client.stop(); 
}