Serial.print("Attempting MQTT connection..."); // 创建一个ID String clientId = "ESP8266Client-"; clientId += String(random(0xffff), HEX); // 连接服务器 if (client.connect(clientId.c_str())) { Serial.println("connected"); // 发布消息 client.publish("outTopic", "hello world"); ...
"MPU6050 connection successful" : "MPU6050 connection failed"); // use the code below to change accel/gyro offset values /* Serial.println("Updating internal sensor offsets..."); // -76 -2359 1688 0 0 0 Serial.print(accelgyro.getXAccelOffset()); Serial.print("\t"); // -76 Serial...
Serial.begin(115200); irrecv.enableIRIn(); // Start the receiver while (!Serial) // Wait for the serial connection to be establised. delay(50); Serial.println(); Serial.print("IRrecvDemo is now running and waiting for IR message on Pin "); Serial.println(kRecvPin); } void loop() ...
Serial.begin ( 115200 ); WiFi.begin ( ssid, password ); Serial.println (""); // Wait for connection while( WiFi.status() != WL_CONNECTED ) { delay ( 500 ); Serial.print ("."); } Serial.println (""); Serial.print ("Connected to "); ...
问Arduino客户端通过websocketsocket连接到服务器，但无法与其通信。EN最主要的原因之一为：安装的杀毒软件...
To bring up the serial terminal and view its output, go to Tools >> Serial Monitor in the IDE. You should see something like this show up in the resulting serial console: Hello world! You can also move the second line of code to the ‘loop’ function so that it will be executed ...
Boards including the Uno, Duemilanove, Diecimila, Nano, and Mega have a chip to convert the hardware serial port on the Arduino chip to Universal Serial Bus (USB)for connection to the hardware serial port. Other boards, such as the Mini, Pro, Pro Mini, Boarduino, Sanguino, and Modern Dev...
Serial.println("Retrying MQTT connection in 5 seconds..."); mqtt.disconnect(); delay(5000);// wait 5 secondsretries--;if(retries ==0) {// basically die and wait for WDT to reset mewhile(1); } } Serial.println("MQTT Connected!"); ...
// Open serial communications and wait for port to open: Serial.begin(9600); while (!Serial) { ; // wait for serial port to connect. Needed for Leonardo only } // start the Ethernet connection: if (Ethernet.begin(mac) == 0) { ...
Serial.println(F("1.Please recheck the connection!"));Serial.println(F("2.Please insert the SD...