DHT11 with Arduino
-
Upload
yeokm1 -
Category
Technology
-
view
646 -
download
0
Transcript of DHT11 with Arduino
![Page 1: DHT11 with Arduino](https://reader036.fdocuments.us/reader036/viewer/2022083106/587378401a28ab3c1a8b6c19/html5/thumbnails/1.jpg)
1
DHT11 Temperature and Humidity
Sensorwith Arduino
By: Yeo Kheng Meng ([email protected])https://github.com/SustainableLivingLab/dht-sensor-usageStartathon (20 Feb 2016)
![Page 2: DHT11 with Arduino](https://reader036.fdocuments.us/reader036/viewer/2022083106/587378401a28ab3c1a8b6c19/html5/thumbnails/2.jpg)
2
Equipment check1. Laptop installed with Arduino IDE• https://www.arduino.cc/en/Main/Software
2. Arduino Uno3. USB cable4. DHT11 on breakout5. Breadboard6. 3 jumper wires
![Page 3: DHT11 with Arduino](https://reader036.fdocuments.us/reader036/viewer/2022083106/587378401a28ab3c1a8b6c19/html5/thumbnails/3.jpg)
3
What is an DHT11?• Temperature and Humidity Sensor
Raw DHT11 • Requires resistor (10kohm) pull-up to VCC• Connections from left: VCC (3-5V), Data Out, None, GND
• Humidity: 20 – 90% ± 5%• Temperature: 0 - 50°C ±2°C
DHT11 with breakoutOnboard pull-up resistorConnection from left: VCC, Data Out, GND
*A better DHT22 version exists so use that if you have a choice
![Page 4: DHT11 with Arduino](https://reader036.fdocuments.us/reader036/viewer/2022083106/587378401a28ab3c1a8b6c19/html5/thumbnails/4.jpg)
4
Connectivity with Arduino
• This is for the raw DHT11• A raw 10k ohm resistor is required between Data and VCC
• For DHT11 breakout: • 5V to +• Arduino Pin 3 to Out• GND to -
![Page 5: DHT11 with Arduino](https://reader036.fdocuments.us/reader036/viewer/2022083106/587378401a28ab3c1a8b6c19/html5/thumbnails/5.jpg)
5
Code• Download and extract zip file• https://github.com/yeokm1/dht-sensor-usage• Remove “-master” from directory name• dht-sensor-usage-master -> dht-sensor-usage
• Open “dht-sensor-usage.ino”• Try to verify/upload
![Page 6: DHT11 with Arduino](https://reader036.fdocuments.us/reader036/viewer/2022083106/587378401a28ab3c1a8b6c19/html5/thumbnails/6.jpg)
6
Importing libraries• Import DHT-sensor-library-master.zip library
![Page 7: DHT11 with Arduino](https://reader036.fdocuments.us/reader036/viewer/2022083106/587378401a28ab3c1a8b6c19/html5/thumbnails/7.jpg)
7
Sample results