no http

wifi-mqtt-esp8266-company-nohttp/wifi-mqtt-esp8266-company-nohttp.ino

@@ -17,13 +17,13 @@ float Humidity;
 // const char* ssid = "rehome";  // Enter SSID here
 // const char* password = "Ruihong123";  //Enter Password here
 
-const char* ssid = "mac_mini";  // Enter SSID here
+const char* ssid = "free";  // Enter SSID here
 const char* password = "452131wW";  //Enter Password here
 
 
 // MQTT代理配置
 const char *mqtt_broker = "47.242.184.139";
-const char *topic = "/device/esp8266/003";
+const char *topic = "/device/esp8266/001";
 // const char* topic01 = "/device/esp8266/006";
 const char *mqtt_username = "admin";
 const char *mqtt_password = "publish452131wW452131wW$";

wifi-mqtt-esp8266-oled-nohttp/wifi-mqtt-esp8266-oled-nohttp.ino

@@ -0,0 +1,145 @@
+#include <DHT.h>//调用dht11驱动库
+#include <ESP8266WiFi.h>
+#include <PubSubClient.h>
+
+#include "SSD1306Wire.h"
+
+const int I2C_ADDR = 0x3c;  // oled屏幕的I2c地址
+#define SDA_PIN D4           // SDA引脚，默认gpio4(D2)
+#define SCL_PIN D5           // SCL引脚，默认gpio5(D1)
+SSD1306Wire oled(I2C_ADDR, SDA_PIN, SCL_PIN);
+
+#define DHTPIN D1 //说明数据接口为8266开发板的D4口，也可以写为#define DHTPIN 2既8266芯片的IO口2
+#define DHTTYPE DHT11//说明使用的模块是DHT11
+DHT dht(DHTPIN,DHTTYPE);//DHT11初始化
+
+//定义浮点类型变量保存测量值
+float Temperature;
+float Humidity;
+//定义WIFI信息
+const char* ssid = "free";  // Enter SSID here
+const char* password = "452131wW";  //Enter Password here
+
+
+// MQTT代理
+const char *mqtt_broker = "47.242.184.139";
+const char *topic = "/device/esp8266/004";
+const char *mqtt_username = "admin";
+const char *mqtt_password = "publish452131wW452131wW$";
+const int mqtt_port = 1883;
+
+ 
+WiFiClient espClient;
+PubSubClient client(espClient);
+
+            
+void setup() {    
+  pinMode(D2, OUTPUT);
+  digitalWrite(D2,HIGH);//IO口2设置为高电平，点亮数字2口LED
+  //digitalWrite(D2,LOW);//IO口2设置为高电平，点亮数字2口LED
+  Serial.begin(115200);
+  delay(100);
+  dht.begin();              
+  Serial.println("Connecting to ");
+  Serial.println(ssid);
+  //connect to your local wi-fi network
+  WiFi.begin(ssid, password);
+  //check wi-fi is connected to wi-fi network
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(1000);
+    Serial.print(".");
+  }
+  Serial.println("");
+  Serial.println("WiFi connected..!");
+  Serial.print("Got IP: ");  Serial.println(WiFi.localIP());
+
+
+  //mqtt init
+  //连接到mqtt代理
+  client.setServer(mqtt_broker, mqtt_port);
+  client.setCallback(callback);
+  while (!client.connected()) {
+      String client_id = "esp8266-client-";
+      client_id += String(WiFi.macAddress());
+      Serial.printf("The client %s connects to the public mqtt broker\n", client_id.c_str());
+      if (client.connect(client_id.c_str(), mqtt_username, mqtt_password)) {
+          Serial.println("Public emqx mqtt broker connected");
+      } else {
+          Serial.print("failed with state ");
+          Serial.print(client.state());
+          delay(2000);
+      }
+  }
+  // 发布和订阅
+  // client.publish(topic, "hello emqx");
+  client.subscribe(topic);
+
+  /* 2. oled屏幕初始化 */
+  oled.init();
+  oled.flipScreenVertically();  // 设置屏幕翻转
+  oled.setContrast(255);        // 设置屏幕亮度
+  drawRect();                   // 测试屏幕显示
+  oled.clear();
+  oled.display();  // 清除屏幕
+}
+void loop() {
+  //mqtt
+  client.loop();
+
+  delay(10000);
+  Temperature = dht.readTemperature(); // Gets the values of the temperature
+  Humidity = dht.readHumidity(); // Gets the values of the humidity 
+  //mqtt发布消息
+  Serial.println("------------mqtt publish start-----------");
+  if (WiFi.status() == WL_CONNECTED) {
+    if(client.connected()){
+      String sendStr = String(Temperature)+" "+String(Humidity);
+      String wendu = String("Tem:")+String(Temperature);
+      String shidu = String("Hum:")+String(Humidity);
+
+      Serial.println(sendStr);
+      client.publish(topic,sendStr.c_str());
+
+      oled.clear();
+      oled.setFont(ArialMT_Plain_16);        // 设置字体
+      oled.drawString(0, 0, wendu);  // 将要显示的文字写入缓存
+      oled.drawString(0, 20,shidu);  // 将要显示的文字写入缓存
+      oled.drawString(0, 40,sendStr);  // 将要显示的文字写入缓存
+      oled.display();                        // 将缓存里的文字在屏幕上显示
+      
+    }else{
+      Serial.println(client.state());
+      String client_id = "esp8266-client-";
+      client_id += String(WiFi.macAddress());
+      Serial.printf("The client %s connects to the public mqtt broker\n", client_id.c_str());
+      if(client.connect(client_id.c_str(), mqtt_username, mqtt_password)) {
+        Serial.println("Public emqx mqtt broker connected");
+        client.subscribe(topic);
+      }else{
+          Serial.print("failed with state ");
+          Serial.print(client.state());
+        }  
+    }
+  }
+  Serial.println("------------mqtt publish end-----------");
+}
+
+void callback(char *topic, byte *payload, unsigned int length) {
+  Serial.println("-----------callback------------");
+  Serial.print("Message arrived in topic:");
+  Serial.println(topic);
+  Serial.print("Message:");
+  for (int i = 0; i < length; i++) {
+      Serial.print((char) payload[i]);
+  }
+  Serial.println();
+  Serial.println("-----------callback------------");
+}
+
+void drawRect(void) {
+  for (int16_t i = 0; i < oled.getHeight() / 2; i += 2) {
+    oled.drawRect(i, i, oled.getWidth() - 2 * i, oled.getHeight() - 2 * i);
+    oled.display();
+    delay(50);
+  }
+}

wifi-mqtt-esp8266/wifi-mqtt-esp8266/wifi-mqtt-esp8266.ino

@@ -25,17 +25,17 @@ DHT dht(DHTPIN,DHTTYPE);//DHT11初始化
 float Temperature;
 float Humidity;
 //定义WIFI信息
-// const char* ssid = "iStoreOS_2.4G";  // Enter SSID here
-// const char* password = "452131wW";  //Enter Password here
+const char* ssid = "free";  // Enter SSID here
+const char* password = "452131wW";  //Enter Password here
 // 配置信息
-const char* ssid = "rehome";
-const char* password = "Ruihong123";
+// const char* ssid = "rehome";
+// const char* password = "Ruihong123";
 
 // const char* host = "192.168.3.26:8873";
 
 // MQTT代理
 const char *mqtt_broker = "47.242.184.139";
-const char *topic = "/device/esp8266/003";
+const char *topic = "/device/esp8266/001";
 const char *mqtt_username = "admin";
 const char *mqtt_password = "publish452131wW452131wW$";
 const int mqtt_port = 1883;