【雕爷学编程】Arduino动手做(55)--DHT11温湿度传感器模块3
37款传感器与执行器的提法,在网络上广泛流传,其实Arduino能够兼容的传感器模块肯定是不止这37种的。鉴于本人手头积累了一些传感器和执行器模块,依照实践出真知(一定要动手做)的理念,以学习和交流为目的,这里准备逐一动手尝试系列实验,不管成功(程序走通)与否,都会记录下来—小小的进步或是搞不掂的问题,希望能够抛砖引玉。
【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验五十五:DHT11 数字温湿度传感器 WiFi节点模块 mini数字温湿度传感器 高精度单总线
安装库:打开IDE—工具—管理库—搜索DHT—安装"DHT sensor library"
【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验五十五:DHT11 数字温湿度传感器 WiFi节点模块 mini数字温湿度传感器 高精度单总线
Arduino参考开源代码
/* 【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程) 实验五十五:DHT11 温湿度复合传感器模块(数字型单总线通信) 安装库:打开IDE—工具—管理库—搜索DHT—安装"DHT sensor library" 项目测试:读取DHT11的串口输出数据 模块接线: DHT11 Arduino VCC 5V GND GND DATA D2 */ #include "DHT.h" #define DHTPIN 2 // 取消注释您正在使用的任何类型! #define DHTTYPE DHT11 // DHT 11 //#define DHTTYPE DHT22 // DHT 22 (AM2302), AM2321 //#define DHTTYPE DHT21 // DHT 21 (AM2301) //初始化DHT传感器 DHT dht(DHTPIN, DHTTYPE); void setup() { Serial.begin(9600); Serial.println(F("DHT11现场测试!")); dht.begin(); } void loop() { delay(2000); //读取温度或湿度大约需要250毫秒! //传感器读数也可能长达2秒“旧”(这是一个非常慢的传感器) float h = dht.readHumidity(); // 读取温度为摄氏温度(默认) float t = dht.readTemperature(); // 将温度读取为华氏度 float f = dht.readTemperature(true); // 检查是否有任何读取失败并提早退出(重试) if (isnan(h) || isnan(t) || isnan(f)) { Serial.println(F("无法从DHT传感器读取! ")); return; } // 计算华氏热量指数(默认值) float hif = dht.computeHeatIndex(f, h); // 计算摄氏温度指数 float hic = dht.computeHeatIndex(t, h, false); Serial.print(F("湿度: ")); Serial.print(h); Serial.print(F("% 温度: ")); Serial.print(t); Serial.print(F("°C ")); Serial.print(f); Serial.print(F("°F 热量指数: ")); Serial.print(hic); Serial.print(F("°C ")); Serial.print(hif); Serial.println(F("°F")); }
实验串口返回情况
Arduino实验场景图
实验开源图形编程(Mixly、Mind+、编玩边学)以及实验串口返回情况
实验开源图形编程(Mixly、Mind+、编玩边学)
实验串口返回情况
【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程)
实验五十五:DHT11 数字温湿度传感器 WiFi节点模块 mini数字温湿度传感器 高精度单总线
Arduino参考开源代码
/* 【Arduino】168种传感器模块系列实验(资料代码+仿真编程+图形编程) 实验五十五:DHT11 温湿度复合传感器模块(数字型单总线通信) 安装库:打开IDE—工具—管理库—搜索DHT—安装"DHT sensor library" 项目测试:读取DHT11的串口输出数据 模块接线: DHT11 Arduino VCC 5V GND GND DATA D2 */ #include <Adafruit_Sensor.h> #include <DHT.h> #include <DHT_U.h> #define DHTPIN 2 // Uncomment the type of sensor in use: #define DHTTYPE DHT11 // DHT 11 //#define DHTTYPE DHT22 // DHT 22 (AM2302) //#define DHTTYPE DHT21 // DHT 21 (AM2301) DHT_Unified dht(DHTPIN, DHTTYPE); uint32_t delayMS; void setup() { Serial.begin(9600); // Initialize device. dht.begin(); Serial.println(F("DHT11 Unified Sensor Example")); // Print temperature sensor details. sensor_t sensor; dht.temperature().getSensor(&sensor); Serial.println(F("------------------------------------")); Serial.println(F("Temperature Sensor")); Serial.print (F("Sensor Type: ")); Serial.println(sensor.name); Serial.print (F("Driver Ver: ")); Serial.println(sensor.version); Serial.print (F("Unique ID: ")); Serial.println(sensor.sensor_id); Serial.print (F("Max Value: ")); Serial.print(sensor.max_value); Serial.println(F("°C")); Serial.print (F("Min Value: ")); Serial.print(sensor.min_value); Serial.println(F("°C")); Serial.print (F("Resolution: ")); Serial.print(sensor.resolution); Serial.println(F("°C")); Serial.println(F("------------------------------------")); // Print humidity sensor details. dht.humidity().getSensor(&sensor); Serial.println(F("Humidity Sensor")); Serial.print (F("Sensor Type: ")); Serial.println(sensor.name); Serial.print (F("Driver Ver: ")); Serial.println(sensor.version); Serial.print (F("Unique ID: ")); Serial.println(sensor.sensor_id); Serial.print (F("Max Value: ")); Serial.print(sensor.max_value); Serial.println(F("%")); Serial.print (F("Min Value: ")); Serial.print(sensor.min_value); Serial.println(F("%")); Serial.print (F("Resolution: ")); Serial.print(sensor.resolution); Serial.println(F("%")); Serial.println(F("------------------------------------")); // Set delay between sensor readings based on sensor details. delayMS = sensor.min_delay / 1000; } void loop() { // Delay between measurements. delay(delayMS); // Get temperature event and print its value. sensors_event_t event; dht.temperature().getEvent(&event); if (isnan(event.temperature)) { Serial.println(F("Error reading temperature!")); } else { Serial.print(F("Temperature: ")); Serial.print(event.temperature); Serial.println(F("°C")); } // Get humidity event and print its value. dht.humidity().getEvent(&event); if (isnan(event.relative_humidity)) { Serial.println(F("Error reading humidity!")); } else { Serial.print(F("Humidity: ")); Serial.print(event.relative_humidity); Serial.println(F("%")); } }
实验串口返回情况
实验开源仿真编程(Linkboy V5.33)