esp8266 通过arduino使用aliyuntosdk如何将两个温湿度传感器(第一个dht11 温湿度传感器(引脚为D4),第二个dht11 温湿度传感器(引脚为D7))分别传入阿里云物联网平台的两个设备中并且将两台设备的数据打印在串口和0.96 存显示屏 (驱动 ssd1306,SCL D1 ,SDA D2)
时间: 2023-06-16 17:05:53 浏览: 64
首先,需要安装AliyunIoTSDK库,然后在阿里云物联网平台创建两个设备并获取设备的三元组信息(ProductKey、DeviceName、DeviceSecret)。
接下来,可以按照以下步骤进行编程:
1. 引入必要的库
```c++
#include <WiFi.h>
#include <AliyunIoTSDK.h>
#include <DHT.h>
#include <Wire.h>
#include <Adafruit_SSD1306.h>
```
2. 设置WiFi连接信息和阿里云物联网平台信息
```c++
const char* ssid = "your_SSID";
const char* password = "your_PASSWORD";
const char* productKey1 = "your_PRODUCTKEY1";
const char* deviceName1 = "your_DEVICENAME1";
const char* deviceSecret1 = "your_DEVICESECRET1";
const char* productKey2 = "your_PRODUCTKEY2";
const char* deviceName2 = "your_DEVICENAME2";
const char* deviceSecret2 = "your_DEVICESECRET2";
```
3. 创建阿里云物联网平台设备对象
```c++
AliyunIoTSDK iot1(productKey1, deviceName1, deviceSecret1);
AliyunIoTSDK iot2(productKey2, deviceName2, deviceSecret2);
```
4. 初始化温湿度传感器
```c++
#define DHTPIN1 D4
#define DHTPIN2 D7
#define DHTTYPE DHT11
DHT dht1(DHTPIN1, DHTTYPE);
DHT dht2(DHTPIN2, DHTTYPE);
```
5. 初始化显示屏
```c++
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);
```
6. 连接WiFi和阿里云物联网平台
```c++
void connectWiFi() {
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
}
}
void connectAliyunIoTSDK() {
while (!iot1.connect() || !iot2.connect()) {
delay(1000);
}
}
```
7. 读取传感器数据并发送到阿里云物联网平台
```c++
void publishData() {
float t1 = dht1.readTemperature();
float h1 = dht1.readHumidity();
float t2 = dht2.readTemperature();
float h2 = dht2.readHumidity();
// 发送数据到设备1
JsonObject& data1 = iot1.addData();
data1["temperature"] = t1;
data1["humidity"] = h1;
iot1.publish();
// 发送数据到设备2
JsonObject& data2 = iot2.addData();
data2["temperature"] = t2;
data2["humidity"] = h2;
iot2.publish();
// 打印数据到串口
Serial.print("Temperature1: ");
Serial.print(t1);
Serial.print(" Humidity1: ");
Serial.println(h1);
Serial.print("Temperature2: ");
Serial.print(t2);
Serial.print(" Humidity2: ");
Serial.println(h2);
// 显示数据到显示屏
display.clearDisplay();
display.setCursor(0, 0);
display.println("Temperature1: " + String(t1));
display.println("Humidity1: " + String(h1));
display.println("Temperature2: " + String(t2));
display.println("Humidity2: " + String(h2));
display.display();
}
```
8. 将以上步骤整合到`setup()`和`loop()`函数中
```c++
void setup() {
Serial.begin(115200);
delay(1000);
connectWiFi();
connectAliyunIoTSDK();
dht1.begin();
dht2.begin();
display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
display.display();
delay(2000);
}
void loop() {
publishData();
delay(5000);
}
```
以上是基本的代码框架,需要根据具体情况进行调整。同时需要注意,需要在阿里云物联网平台设置数据接收规则来接收传感器数据。