Specifications: Material: Polymer Usage: Temperature and Humidity Sensor Output: Switching Transducer Theory: Resistance Sensor Design and Style: Ultra-small size, low power consumption Performance and Property: High reliability, excellent long-term stability Features: |Usb Temp Sensor|Voltmeter Arduino|Ard...
// factor -3 is to adjust units - Vapor Pressure SVP * humidity double VP = pow(10, RHS - 3) * humidity; // (2) DEWPOINT = F(Vapor Pressure) double T = log(VP/0.61078); // temp var return (241.88 * T) / (17.558 - T); } // delta max = 0.6544 wrt dewPoint() // 6...
Serial.println(temp_Value,2); //发送温度数据 delay(1000); //一秒刷新一次 } (3)实验演示 实际的实验硬件连接图如图9所示,串口接收到的温度数据如图10所示。 图9 实验硬件连接图 图10 串口接收的温度数据 3 DS18B20 3.1 DS18B20简介 DS18B20是美国DALLAS半导体公司的数字化单总线智能温度传感器,与传统的热敏电...
htu.readHumidity()返回湿度读数，也是0到100之间的浮点值（读取 % 湿度）void loop() { float temp ...
Serial.print((float)dht11.getHumidity(),2); Serial.print("% Temperature: "); Serial.print((float)dht11.getTemperature(),2); Serial.print("'C "); Serial.print((float)dht11.getTemperature(true),2); Serial.println("'F"); }
floath= DHT.humidity; float t = DHT.temperature;if(isnan(h) || isnan(t)) { Serial.println("Failedto read from DHT sensor!");Return; }display.setTextColor(WHITE);display.setTextSize(1);display.setFont();display.setCursor(0, 43);display.println("Temp :");display.setCursor(80, 43)...
//This program works best at a fresh air room withtemperaure Temp: 20℃, Humidity: 65%, O2 concentration 21% and when the value of Rl is 47K #define RL 47 //The value of resistor RL is 47K void setup() //Runs only once
(dataPin);floatt=DHT.temperature;floath=DHT.humidity;lcd.setCursor(0,0);// Sets the location at which subsequent text written to the LCD will be displayedlcd.print("Temp.: ");// Prints string "Temp." on the LCD//Print temperature value in Celcius and Fahrenheit every alternate ...
点击左侧 Libraries 栏目,在搜索框中输入DHT11找到DHT sensor library by Adafruit,点击INSTALL进行安装,然后会提示我们需要安装一些依赖项目: 这里Arduino IDE 自动提示我们想要使用DHT sensor library还需要安装Adafruit Unified Sensor,我们直接点击Install all让它自动安装,成功后可以在输出界面看到这样的提示: ...
- temperature#气温- precipitation#雨量- windSpeed#风速- pressure#气压- windDirection#风向- humidity#湿度# 环境接收温湿度- platform: mqtt name: temp"unit_of_measurement":"摄氏度"state_topic:"mqtt/temp"- platform: mqtt name: humi"unit_of_measurement":"%"state_topic:"mqtt/humi"# 控制ledlight...