函数实现在 dht11.c 中,在构造函数 DHT11() 中初始化引脚,在 read() 函数中实现与 dht11 传感器的通信并获取原始温湿度值,通过 getHumidity() 和 getTemperature() 函数获取当前温湿度值。DHT11 类中同时提供了一些温湿度转换的功能...
Serial.println(F("reading temperature begin. \n")); }// the loop routine runs over and over again forever:voidloop() {staticunsignedlongsensortStamp = 0;if(millis() - sensortStamp > 100){ sensortStamp = millis();// read the LM35 sensor value and convert to the degrees every 100ms.i...
sensorValue_mq2 = analogRead(Sensor_mq2); //手捂着哈气实际最大620 最大应该带是1023 //数据打包 String msg=String("")+String("Temperature-")+String(dht.getTemperatureC())+String("-Humidity-")+String(dht.getHumidity())+"-Water-"+String(sensorValue_water)+"-MQ2-"+String(sensorValue_mq2...
int chk=DHT11.read(DHT11PIN); Serial.println("Read sensor: "); switch(chk){ case DHTLIB_OK: Serial.println("OK"); break; case DHTLIB_ERROR_CHECKSUM: Serial.println("Checksum error"); break; case DHTLIB_ERROR_TIMEOUT: Serial.println("Time out error"); break; default: Serial.println...
sensor Wire.requestFrom(sensorAddress,2); delay(10); if (2 <= Wire.available()) // if two bytes were received { byte msb; byte lsb; int temperature; msb = Wire.read(); // receive high byte (full degrees) lsb = Wire.read(); // receive low byte (fraction degrees) temperature =...
在loop()函数中先定义浮点型变量Temperature，通过“float Temperature = dht.readTemperature();”语句实现对检测温度数据的读取，然后将该数据在串口监视器中输出：“Serial.print("当前温度为：");”“Serial.print(Temperature);”和“Serial.println("℃");”；接着，构建“if…else if…else…”三分支选择...
htu.readTemperature()返回浮点温度读数（以 °C 为单位）。 您可以通过乘以1.8再加上32来转换为华氏...
// Internal Temperature Sensor // Example sketch for ATmega328 types. // // April 2012, Arduino 1.0 voidsetup() { Serial.begin(9600); Serial.println(F("Internal Temperature Sensor")); } voidloop() { // Show the temperature in degrees Celcius. ...
int chk = DHT11.read(DHT11PIN); Serial.print("Read sensor: "); switch (chk)//判断传感器连接是否正常 { case DHTLIB_OK: Serial.println("OK"); break; case DHTLIB_ERROR_CHECKSUM: Serial.println("Checksum error"); break; case DHTLIB_ERROR_TIMEOUT: ...
switch(tempSensor.isValid()) { case 1: Serial.println("Invalid CRC"); tempSensor.reset(); // Reset Sensor return; case 2: Serial.println("Not a valid device"); tempSensor.reset(); // Reset Sensor return; } // Read Temperature from DS18B20 ...