DHT-11 溫度傳感器 溫度/濕度感應器 Temperature Humidity Sensor

描述

DHT11 溫度傳感器
溫度 / 濕度感應器

Raspberry Pi, Arduino, Micro:Bit 適用

尺寸：長28mm x 寬12mm x 高7.2mm

傳感器型號：奧松DHT11溫濕度傳感器

工作電壓：直流5V

特點：
1、濕度測量範圍：20—90%RH
2、濕度測量精度：±5%RH
3、溫度測量範圍：0—50℃
4、溫度測量精度：±2℃
5、工作電壓：DC5V/3.3V
6、數字信號輸出
7、數據端口帶上拉電阻
8、帶3mm固定螺絲孔，方便安裝

溫馨提示：切勿將VCC與GND接反，接反必燒！

五、接線方法：

VCC → 3.3V/5V電源正極
GND →電源負極
DATA →D3

Tutorial:

http://www.instructables.com/id/DHT11-and-Arduino-UNOThe-EASIEST-INSTRUCTABLE/

Library
https://drive.google.com/file/d/0B3b3PW7n8tipNlAyazI4MnBDUzQ/view

Sample Code To Display in Serial Monitor:

[pastacode lang=”cpp” manual=”%23include%3Cdht.h%3E%0Adht%20DHT%3B%0A%0A%2F%2F%20if%20you%20require%20to%20change%20the%20pin%20number%2C%20Edit%20the%20pin%20with%20your%20arduino%20pin.%0A%0A%23define%20DHT11_PIN%203%0A%0Avoid%20setup()%20%7B%0A%0ASerial.begin(9600)%3B%0A%0ASerial.println(%22welcome%20to%20TechPonder%20Humidity%20and%20temperature%20Detector%22)%3B%20%7D%0A%0Avoid%20loop()%20%7B%20%2F%2F%20READ%20DATA%0A%0Aint%20chk%20%3D%20DHT.read11(DHT11_PIN)%3B%0A%0ASerial.println(%22%20Humidity%20%22%20)%3B%0A%0ASerial.println(DHT.humidity%2C%201)%3B%0A%0ASerial.println(%22%20Temparature%20%22)%3B%0A%0ASerial.println(DHT.temperature%2C%201)%3B%0A%0Adelay(2000)%3B%0A%0A%7D” message=”” highlight=”” provider=”manual”/]

Sample Code to Display Humidity and Temparature using LCD 1602 I2C

[pastacode lang=”c” manual=”%23include%20%3Cdht.h%3E%0A%23include%20%3CLiquidCrystal_I2C.h%3E%0A%23define%20DHT11_PIN%203%0ALiquidCrystal_I2C%20lcd(0x27%2C%202%2C%201%2C%200%2C%204%2C%205%2C%206%2C%207%2C%203%2C%20POSITIVE)%3B%20%2F%2F%20%E8%A8%AD%E5%AE%9A%20LCD%20I2C%20%E4%BD%8D%E5%9D%80%0Adht%20DHT%3B%0A%0A%0A%0A%2F%2F%20if%20you%20require%20to%20change%20the%20pin%20number%2C%20Edit%20the%20pin%20with%20your%20arduino%20pin.%0A%0A%0Avoid%20setup()%20%7B%0A%0A%20%20%2F%2FInitial%20Serial%20Monitor%0A%20%20Serial.begin(9600)%3B%0A%20%20Serial.println(%22HK%20STEM%20CLUB%22)%3B%20%0A%0A%20%20%2F%2FInitial%20I2C%20LCD%201602%0A%20%20lcd.begin(16%2C%202)%3B%20%2F%2F%20%E5%88%9D%E5%A7%8B%E5%8C%96%20LCD%EF%BC%8C%E4%B8%80%E8%A1%8C%2016%20%E7%9A%84%E5%AD%97%E5%85%83%EF%BC%8C%E5%85%B1%202%20%E8%A1%8C%EF%BC%8C%E9%A0%90%E8%A8%AD%E9%96%8B%E5%95%9F%E8%83%8C%E5%85%89%0A%20%20lcd.setCursor(0%2C%200)%3B%20%2F%2F%20%E8%A8%AD%E5%AE%9A%E6%B8%B8%E6%A8%99%E4%BD%8D%E7%BD%AE%E5%9C%A8%E7%AC%AC%E4%B8%80%E8%A1%8C%E8%A1%8C%E9%A6%96%0A%20%20lcd.print(%22HK%20STEM%20CLUB%22)%3B%0A%20%20lcd.setCursor(0%2C%201)%3B%20%2F%2F%20%E8%A8%AD%E5%AE%9A%E6%B8%B8%E6%A8%99%E4%BD%8D%E7%BD%AE%E5%9C%A8%E7%AC%AC%E4%BA%8C%E8%A1%8C%E8%A1%8C%E9%A6%96%0A%20%20lcd.print(%22hkstem.club%22)%3B%0A%20%20for(int%20i%20%3D%200%3B%20i%20%3C%201%3B%20i%2B%2B)%20%7B%0A%20%20%20%20lcd.backlight()%3B%20%2F%2F%20%E9%96%8B%E5%95%9F%E8%83%8C%E5%85%89%0A%20%20%20%20delay(250)%3B%0A%20%20%20%20lcd.noBacklight()%3B%20%2F%2F%20%E9%97%9C%E9%96%89%E8%83%8C%E5%85%89%0A%20%20%20%20delay(250)%3B%0A%20%20%20%20%7D%0A%20%20lcd.backlight()%3B%0A%20%20%7D%0A%0Avoid%20loop()%20%7B%20%2F%2F%20READ%20DATA%0A%0Aint%20chk%20%3D%20DHT.read11(DHT11_PIN)%3B%0A%0A%2F%2FDisplay%20Serial%20Monitor%0ASerial.println(%22Humidity%20%22%20)%3B%0ASerial.println(DHT.humidity%2C%201)%3B%0ASerial.println(%22Temparature%20%22)%3B%0ASerial.println(DHT.temperature%2C%201)%3B%0A%0A%2F%2FDisplay%20LCD%0A%20%20lcd.clear()%3B%0A%20%20lcd.setCursor(0%2C%200)%3B%20%2F%2F%20%E8%A8%AD%E5%AE%9A%E6%B8%B8%E6%A8%99%E4%BD%8D%E7%BD%AE%E5%9C%A8%E7%AC%AC%E4%B8%80%E8%A1%8C%E8%A1%8C%E9%A6%96%0A%20%20lcd.print(%22Humidity%20%22)%3B%0A%20%20lcd.print(DHT.humidity%2C%201)%3B%0A%20%20lcd.setCursor(0%2C%201)%3B%20%2F%2F%20%E8%A8%AD%E5%AE%9A%E6%B8%B8%E6%A8%99%E4%BD%8D%E7%BD%AE%E5%9C%A8%E7%AC%AC%E4%BA%8C%E8%A1%8C%E8%A1%8C%E9%A6%96%0A%20%20lcd.print(%22Temparature%20%22)%3B%0A%20%20lcd.print(DHT.temperature%2C%201)%3B%0A%0Adelay(2000)%3B%0A%0A%7D” message=”” highlight=”” provider=”manual”/]

micro:bit tutorial: https://sites.google.com/jes.mlc.edu.tw/ljj/microbit%E9%96%8B%E7%99%BC%E6%9D%BF/microbit%E6%84%9F%E6%87%89%E5%99%A8%E7%A9%8D%E6%9C%A8

micro:bit library:

https://github.com/lioujj/pxt-sensors

https://github.com/MonadnockSystems/pxt-dht11

micro:bit sample code