esp8266与onenet平台进行数据传输的程序代码

以下是使用ESP8266与OneNet平台进行数据传输的基本代码：

首先，你需要安装ESP8266的开发环境和库文件。然后，创建一个新的Arduino项目，将以下代码复制到项目中并上传到ESP8266板子中。

#include <SoftwareSerial.h>
#include <ESP8266WiFi.h>

// Replace with your OneNet API Key and Device ID
const char* apiKey = "your_api_key";
const char* deviceId = "your_device_id";

// Replace with your WiFi SSID and Password
const char* ssid = "your_wifi_ssid";
const char* password = "your_wifi_password";

// OneNet Server Information
const char* server = "api.heclouds.com";
const int port = 80;

SoftwareSerial espSerial(10, 11); // RX, TX
WiFiClient client;

void setup() {
  Serial.begin(9600);
  espSerial.begin(9600);
  delay(1000);

  // Connect to WiFi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("WiFi Connected");

  // Connect to OneNet
  if (!client.connect(server, port)) {
    Serial.println("Connection to OneNet Failed");
    return;
  }
  Serial.println("Connected to OneNet");
}

void loop() {
  String data = "temp,25"; // Replace with your sensor data
  String url = "/devices/" + String(deviceId) + "/datapoints";

  // Create HTTP Request
  String httpRequest = "POST " + url + " HTTP/1.1\r\n" +
                       "Host: " + String(server) + "\r\n" +
                       "api-key: " + String(apiKey) + "\r\n" +
                       "Content-Type: application/json\r\n" +
                       "Content-Length: " + String(data.length()) + "\r\n" +
                       "Connection: close\r\n\r\n" +
                       data + "\r\n\r\n";

  // Send HTTP Request
  client.print(httpRequest);
  Serial.print(httpRequest);

  // Wait for Response
  while (client.connected()) {
    if (client.available()) {
      String response = client.readStringUntil('\r');
      Serial.print(response);
    }
  }
  Serial.println();
  delay(10000); // Delay for 10 seconds
}

在代码中，你需要将以下变量替换为你自己的：

- apiKey: 你的OneNet API Key
- deviceId: 你的OneNet设备ID
- ssid: 你的WiFi网络名称
- password: 你的WiFi网络密码

你还需要将data变量替换为你的传感器数据。在这个示例中，我们将温度数据设置为25度。一旦你上传了代码，ESP8266将会连接到OneNet平台并发送数据。你可以在OneNet平台上查看数据并创建自己的可视化图表。