esp8266连接onenet代码

以下是一个ESP8266连接OneNet的例子，其中使用了OneNet的HTTP API进行通信：

#include <ESP8266WiFi.h>
#include <WiFiClientSecure.h>

// OneNet配置
const String ONENET_DEVICE_ID = "device_id"; // 设备ID
const String ONENET_API_KEY = "api_key"; // API KEY
const String ONENET_HOST = "api.heclouds.com"; // OneNet的API主机名

// WiFi配置
const char* WIFI_SSID = "ssid";
const char* WIFI_PASSWORD = "password";

// HTTP请求信息
const char* HTTP_METHOD = "GET"; // 请求方法
const char* HTTP_URI = "/devices/" + ONENET_DEVICE_ID + "/datapoints"; // 请求URI

void setup() {
Serial.begin(115200);

WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
Serial.print("Connecting to WiFi");
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.print(".");
}
Serial.println("Connected");

// 创建一个安全客户端
WiFiClientSecure client;
client.setInsecure(); // 关闭SSL验证

// 连接OneNet API主机
if (!client.connect(ONENET_HOST, 80)) {
Serial.println("Connection failed");
return;
}

// 构建HTTP请求头
String httpHeader = "";
httpHeader += HTTP_METHOD;
httpHeader += " ";
httpHeader += HTTP_URI;
httpHeader += " HTTP/1.1\r\n";
httpHeader += "Host: ";
httpHeader += ONENET_HOST;
httpHeader += "\r\n";
httpHeader += "api-key: ";
httpHeader += ONENET_API_KEY;
httpHeader += "\r\n";
httpHeader += "Connection: close\r\n\r\n";

Serial.println("Sending HTTP request");
Serial.println(httpHeader);

// 发送HTTP请求
client.print(httpHeader);

// 读取HTTP响应
String httpResponse = "";
while (client.connected()) {
String line = client.readStringUntil('\n');
if (line == "\r") {
break;
}
}
while (client.available()) {
char c = client.read();
httpResponse += c;
}

Serial.println("HTTP Response:");
Serial.println(httpResponse);
}

void loop() {
}