基于WiFi模块的温湿度烟雾信息传输传感器程序设计

以下是基于WiFi模块的温湿度烟雾信息传输传感器程序设计的示例代码：

#include <ESP8266WiFi.h>
#include <DHT.h>

#define DHTPIN 2
#define DHTTYPE DHT11
DHT dht(DHTPIN, DHTTYPE);

const char* ssid = "your_SSID";
const char* password = "your_PASSWORD";
const char* host = "your_SERVER_ADDRESS";
const int port = 80;

void setup() {
Serial.begin(9600);
dht.begin();
WiFi.begin(ssid, password);

while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting to WiFi...");
}

Serial.println("Connected to WiFi");
}

void loop() {
float temperature = dht.readTemperature();
float humidity = dht.readHumidity();
int smoke = analogRead(A0);

if (isnan(temperature) || isnan(humidity)) {
Serial.println("Failed to read from DHT sensor");
return;
}

if (WiFi.status() == WL_CONNECTED) {
WiFiClient client;
if (client.connect(host, port)) {
String data = "temperature=" + String(temperature) + "&humidity=" + String(humidity) + "&smoke=" + String(smoke);
client.println("POST /post_data.php HTTP/1.1");
client.println("Host: " + String(host));
client.println("Connection: close");
client.println("Content-Type: application/x-www-form-urlencoded");
client.print("Content-Length: ");
client.println(data.length());
client.println();
client.print(data);
client.println();
Serial.println("Data sent to server");
} else {
Serial.println("Failed to connect to server");
}
} else {
Serial.println("WiFi not connected");
}

delay(10000);
}

以上代码中，我们使用了ESP8266WiFi库和DHT库来控制WiFi模块和DHT11传感器。在setup函数中，我们初始化了WiFi模块和DHT11传感器，并连接到WiFi网络。在loop函数中，我们读取温湿度和烟雾传感器的数据，并将数据通过HTTP POST请求发送到指定的服务器地址。在发送数据之前，我们需要检查WiFi连接状态和DHT11传感器读取状态，以确保数据的准确性。最后，我们使用延迟函数来控制数据发送的频率。