esp8266 arduino 舵机 阿里云 DHT11

要将ESP8266与Arduino连接并控制舵机，同时将DHT11传感器数据上传到阿里云，您可以按照以下步骤进行操作：

1. 连接ESP8266和Arduino。将ESP8266的VCC和GND引脚连接到Arduino的3.3V和GND引脚上。将ESP8266的TX引脚连接到Arduino的RX引脚上，将ESP8266的RX引脚连接到Arduino的TX引脚上。还需要将ESP8266的CH_PD引脚连接到Arduino的3.3V引脚上，并将ESP8266的GPIO0引脚连接到Arduino的GND引脚上。

2. 在Arduino IDE中，安装ESP8266库并编写代码。您需要使用ESP8266WiFi库连接ESP8266到Wi-Fi网络，并使用ESP8266HTTPClient库将数据上传到阿里云。您还需要使用Servo库控制舵机，并使用DHT库读取DHT11传感器数据。

以下是一个示例代码，可用于控制舵机并将DHT11传感器数据上传到阿里云：

#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <Servo.h>
#include <DHT.h>

// Replace with your network credentials
const char* ssid = "your_SSID";
const char* password = "your_PASSWORD";

// Replace with your Aliyun IoT Platform endpoint and key/secret
const char* endpoint = "your_ENDPOINT.iot-as-mqtt.cn-shanghai.aliyuncs.com";
const char* key = "your_KEY";
const char* secret = "your_SECRET";

// Create an instance of the Servo class
Servo myservo;

// Define the DHT11 sensor pin
#define DHTPIN D4

// Define the type of DHT sensor
#define DHTTYPE DHT11

// Create an instance of the DHT class
DHT dht(DHTPIN, DHTTYPE);

// Create an instance of the WiFiClient class
WiFiClient wifiClient;

void setup() {
  // Connect to Wi-Fi network with SSID and password
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }

  Serial.println("Connected to WiFi");

  // Initialize the Servo class
  myservo.attach(D3);

  // Initialize the DHT class
  dht.begin();

  Serial.begin(9600);
}

void loop() {
  // Read the temperature and humidity from the DHT11 sensor
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();

  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.print("C, Humidity: ");
  Serial.print(humidity);
  Serial.println("%");

  // Move the servo based on the temperature value
  int angle = map(temperature, 0, 50, 0, 180);
  myservo.write(angle);

  // Create a JSON payload with the temperature and humidity data
  String payload = "{\"temperature\": " + String(temperature) + ", \"humidity\": " + String(humidity) + "}";

  // Create an instance of the HTTPClient class
  HTTPClient http;

  // Set the HTTP headers for the request
  http.addHeader("Content-Type", "application/json");
  http.addHeader("Authorization", "MQTT " + String(key) + ":" + String(secret));

  // Send the request to the Aliyun IoT Platform
  http.begin(wifiClient, "https://" + String(endpoint) + "/topic/user/update", "POST");
  int httpResponseCode = http.POST(payload);
  http.end();

  // Print the HTTP response code
  Serial.println(httpResponseCode);

  delay(5000);
}

该代码将读取DHT11传感器数据，并根据温度值控制舵机。它还将创建一个JSON有效负载，并将其上传到阿里云IoT平台。请注意，您需要将示例代码中的Wi-Fi网络凭据、阿里云终端点和密钥/密钥替换为您自己的值。

希望这可以帮助您开始使用ESP8266和Arduino控制舵机并将数据上传到阿里云。