Raspberry Pi DHT22/DHT11 Weather Station

A DHT22/DHT11 Weather Station project using Python, Flask, Flask-SocketIO, and Bootstrap that displays real-time temperature and humidity sensor readings of your multiple sensors using only your Raspberry Pi

Writeup

https://www.donskytech.com/raspberry-pi-weather-station/

Steps on how to run on Raspberry Pi

1. Clone the repository

   git clone https://github.com/donskytech/dht22-weather-station-python-flask-socketio-multiple-sensors
   cd dht22-weather-station-python-flask-socketio-multiple-sensors

2. Create a Python virtual environment

   python -m venv .venv
   source .venv/bin/activate

3. Install the dependencies

   pip install -r requirements.txt

4. Run the application

   flask run --host=0.0.0.0

5. Access the application using the following URL

   http://<IP>:5000

   How to add multiple DHT22/DHT11 sensors

   Edit your app.py and add the new variables like the below code

dht22_module_1 = DHT22Module(1, board.D2)
dht22_module_2 = DHT22Module(2, board.D3, adafruit_dht.DHT11)
dht22_module_3 = DHT22Module(3, board.D4)
dht22_module_4 = DHT22Module(3, board.D17)
dht22_module_5 = DHT22Module(3, board.D27)
dht22_module_6 = DHT22Module(3, board.D22)

dht_modules = [dht22_module_1, dht22_module_2, dht22_module_3, dht22_module_4, dht22_module_5, dht22_module_6]

This would add 3 more additional sensor on your web application

How to auto-start this project when your Raspberry Pi boots or starts?

https://www.donskytech.com/raspberry-pi-how-to-start-python-script-on-boot/