Follow the next schematic to connect the DHT11 (or DHT22) Temperature and Humidity Sensor to the Arduino. NOTE: If you are using a module with a DHT sensor, it will usually only come with three pins. The pins should be labeled so you know how to wire them. Also, many of these modu...
DHT11 是一款温湿度传感器,可以用来测试环境温湿度,该传感器的的温度测量范围为 0 ~ 50°C,误差为 2 °C;湿度测量范围为在 0°C时为30%-90%RH,环境温度为 25°C时,湿度测量范围为20%-90%RH,在50°C时,测量范围是20%-80%。 DHT11 传感器接线方法并不复杂,DHT11封装有4个引脚,各个引脚说明如下: 一般...
Serial.begin(115200);// 设置波特率Serial.println("DHT11 test!");// 串口输出信息dht.begin();// 启动dht}voidloop(){floattemp_hum_val[2] = {0};// 定义一个浮点类型的数组if(!dht.readTempAndHumidity(temp_hum_val)){// 判断是否可以读到温湿度传感器的数据,可以则输出相关数据Serial.print("H...
irsend.sendRaw(Temp28, sizeof(Temp28) / sizeof(Temp28[0]), khz); delay(2000);//Send signal to set 28*C AC_Temp = 28; } if (Measured_temp == Desired_temperature-2 ) //If AC is ON and measured temp is very low than desired value { irsend.sendRaw(Temp29, sizeof(Temp29) /...
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...
DHT11 属于低速传感器,两次通信请求之间的间隔时间不能太短,一般来说要不能低于1秒。 当前DHT11 通信帧的小数部分默认都是 0,厂商预留给以后实现,所以一般只读取整数值部分即可。 校验和定义为:前 4 个 Byte 的总和的低 8 位。 Arduino Test #include "dht11.h" ...
Learn how to program Arduino to read temperature and humidity from DHT11 sensor and module. The detail instruction, code, wiring diagram, video tutorial, line-by-line code explanation are provided to help you quickly get started with Arduino. Find this a
and specifies the dimensions (width and height) of the display}voidloop(){intreadData=DHT.read22(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...
Simple, Stable and Fast Arduino Temp & Humidity Sensors for DHT11 and DHT22. http://learn.adafruit.com/dht - winlinvip/SimpleDHT
1 × DHT11 Temperature Humidity Sensor Module 1 × DHT22 Temperature Humidity Sensor Module 1 × 10 kΩ Resistor 1 × Breadboard 1 × Jumper Wires 1 × Recommended: Screw Terminal Block Shield for Arduino Uno 1 × Recommended: Breadboard Shield for Arduino Uno 1 × Recommended: En...