esp01s与arduino uno开发板链接并上传阿里云代码

连接ESP01S和Arduino Uno开发板到阿里云需要进行以下几个步骤：

1. 注册阿里云账号并创建设备

2. 下载阿里云物联网套件，安装并打开

3. 在套件中创建产品和设备

4. 在Arduino IDE中安装ESP8266WiFi库和PubSubClient库

- 打开Arduino IDE，点击菜单栏的“工具”->“管理库”
- 在搜索框中输入“ESP8266WiFi”，搜索并安装
- 在搜索框中输入“PubSubClient”，搜索并安装

5. 在Arduino IDE中编写代码，实现ESP01S与阿里云的通信

以下是一份简单的Arduino代码示例，可以将其上传到Arduino Uno开发板来实现ESP01S与阿里云的连接:

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

// WiFi网络配置
const char* ssid = "your_SSID";
const char* password = "your_PASSWORD";

// 阿里云物联网平台配置
const char* mqttServer = "your_MQTT_SERVER";
const int mqttPort = 1883;
const char* mqttUsername = "your_MQTT_USERNAME";
const char* mqttPassword = "your_MQTT_PASSWORD";
const char* mqttClientId = "your_MQTT_CLIENTID";
const char* mqttTopic = "your_MQTT_TOPIC";

SoftwareSerial espSerial(2, 3); // RX, TX
ESP8266WiFiMulti wifiMulti;
WiFiClient espClient;
PubSubClient client(espClient);

void setup() {
  Serial.begin(9600);
  espSerial.begin(115200);
  delay(1000);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi!");
  client.setServer(mqttServer, mqttPort);
  client.setCallback(callback);
  while (!client.connected()) {
    Serial.println("Connecting to MQTT server...");
    if (client.connect(mqttClientId, mqttUsername, mqttPassword)) {
      Serial.println("Connected to MQTT server!");
      client.subscribe(mqttTopic);
    } else {
      Serial.print("Failed to connect to MQTT server with state ");
      Serial.print(client.state());
      delay(2000);
    }
  }
}

void loop() {
  if (espSerial.available()) {
    Serial.write(espSerial.read());
    client.publish(mqttTopic, espSerial.readStringUntil('\n').c_str());
  }
  if (!client.connected()) {
    reconnect();
  }
  client.loop();
}

void callback(char* topic, byte* payload, unsigned int length) {
  // 处理接收到的消息
}

void reconnect() {
  while (!client.connected()) {
    Serial.println("Connecting to MQTT server...");
    if (client.connect(mqttClientId, mqttUsername, mqttPassword)) {
      Serial.println("Connected to MQTT server!");
      client.subscribe(mqttTopic);
    } else {
      Serial.print("Failed to connect to MQTT server with state ");
      Serial.print(client.state());
      delay(2000);
    }
  }
}

在代码中，需要填入你自己的WiFi网络配置和阿里云物联网平台配置信息。ESP01S通过SoftwareSerial库与Arduino Uno通信，需要将其RX和TX引脚分别连接到Arduino Uno的2和3引脚。

上传代码后，打开串口监视器，你应该能看到ESP01S成功连接到WiFi网络，并通过串口与Arduino Uno通信。同时，ESP01S也连接到了阿里云物联网平台，并订阅了mqttTopic主题。你可以在串口监视器中输入一些数据，这些数据应该会被ESP01S通过MQTT协议发送到阿里云物联网平台。