stm32f103c8t6与ESP8266上传云平台onenet

要将STM32F103C8T6和ESP8266上传到OneNET云平台，需要进行以下步骤：

1.在OneNET云平台上创建设备和数据流，并获取设备ID和API密钥。

2.在STM32F103C8T6上编写程序，通过串口与ESP8266通信，并将传感器数据发送给ESP8266。

3.在ESP8266上编写程序，通过WiFi连接到OneNET云平台，并将从STM32F103C8T6接收到的数据上传到OneNET云平台。

以下是示例代码：

STM32F103C8T6代码：

#include <stdio.h>
#include "stm32f10x.h"
#include "usart.h"

#define SENSOR_DATA_STREAM_ID "sensor"
#define API_KEY "xxxxxxxxxxxxxxxxxxxx"

void init_sensor()
{
    // 初始化传感器
}

void send_sensor_data(uint8_t* data, uint32_t len)
{
    // 发送传感器数据给ESP8266
}

int main(void)
{
    USART1_Config();

    init_sensor();

    while (1)
    {
        uint8_t sensor_data[1024];
        uint32_t sensor_data_len = 0;

        // 读取传感器数据
        // ...

        send_sensor_data(sensor_data, sensor_data_len);

        // 等待下一次读取数据
        // ...
    }
}

ESP8266代码：

#include <ESP8266WiFi.h>
#include <OneNET.h>

#define WIFI_SSID "your_wifi_ssid"
#define WIFI_PASSWORD "your_wifi_password"
#define ONE_NET_DEVICE_ID "your_device_id"
#define ONE_NET_API_KEY "your_api_key"

WiFiClient wifiClient;
OneNET oneNet(wifiClient);

void wifi_connect()
{
    WiFi.begin(WIFI_SSID, WIFI_PASSWORD);

    Serial.print("Connecting to WiFi");
    while (WiFi.status() != WL_CONNECTED)
    {
        delay(500);
        Serial.print(".");
    }

    Serial.println("");
    Serial.println("WiFi connected");
    Serial.println("IP address: ");
    Serial.println(WiFi.localIP());
}

void one_net_connect()
{
    oneNet.setup(ONE_NET_DEVICE_ID, ONE_NET_API_KEY);
}

void send_sensor_data_to_one_net(uint8_t* data, uint32_t len)
{
    char topic[64];

    sprintf(topic, "devices/%s/datapoints", ONE_NET_DEVICE_ID);

    oneNet.add(topic);

    oneNet.print("{\"datastreams\":[{\"id\":\"" SENSOR_DATA_STREAM_ID "\",\"datapoints\":[{\"value\":\"");

    oneNet.write(data, len);

    oneNet.print("\"}]}]}");
    oneNet.post();
}

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

    wifi_connect();

    one_net_connect();
}

void loop()
{
    uint8_t sensor_data[1024];
    uint32_t sensor_data_len = 0;

    // 从STM32F103C8T6接收传感器数据
    // ...

    send_sensor_data_to_one_net(sensor_data, sensor_data_len);

    // 等待下一次读取数据
    // ...
}