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...
Humidity Accuracy 5% Reading Rate 1Hz (once every second) Pinout DHT11 has two forms: sensor and module. DHT11 sensor has four pins: GND pin: needs to be connected to GND (0V) VCC pin: needs to be connected to VCC (5V, or 3.3V) DATA pin: the pin is used to communicate between...
");// 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("Humidity: "); Serial.print(temp_hum_val[0]); Serial.print(...
代码的解释如下,首先我们必须使用DHT1温度传感器读取温度和湿度并将其显示在OLED上。这是通过以下代码完成的。 DHT.read11(DHT11_PIN); //Read the Temp and Humidity Measured_temp = DHT.temperature + temp_error; Measured_Humi = DHT.humidity;
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" ...
在这个项目中,您将学习如何使用 Arduino IDE 构建一个带有 DHT11 或 DHT22 的异步 ESP32 网络服务器来显示温度和湿度。 我们将构建的网络服务器会自动更新读数,而无需刷新网页。 通过这个项目,您将学到: 如何从 DHT 传感器读取温度和湿度; 使用ESPAsyncWebServer 库构建异步 Web 服务器; ...
Simple, Stable and Fast Arduino Temp & Humidity Sensors for DHT11 and DHT22. http://learn.adafruit.com/dht - winlinvip/SimpleDHT
This tutorial shows how to use the DHT11 and DHT22 temperature and humidity sensors with the ESP32 using Arduino IDE. We’ll go through a quick introduction to these sensors, pinout, wiring diagram, and finally the Arduino sketch.Learn how to display temperature and humidity readings on a ...