I'm using DHT22 sensor to sense...
..surrounding temperature and humidity.
There have 3 connections between sensor and Pi.
DAT to GPIO 17, VCC to 3.3V and GND to GND.
We need to install sensor's library from Adafruit.
Write following command on Terminal.
git clone https://github.com/adafruit/Adafruit_Python_DHT.git
cd Adafruit_Python_DHT
sudo python setup.py install
Open Python 2 (IDLE).
You can copy the sample code in Cytron tutorial.
This sample code reads temperature and...
..humidity from DHT22 sensor, and send to Blynk app...
..every ~3 seconds.
Run program and make sure Blynk server is ready.
In Blynk app, add 2x Labeled Value widget.
1st widget is for temperature in Celsius.
2nd widget is for humidity readings.
Run Blynk app.
You can check the data display on Blynk app...
..is response towards surrounding temperature...
..and humidity.
So that's all. Thanks for watching.
