Let’s sophisticated our “Hello World” application, creating an HTML template and a CSS file for styling our page. The application will be running unless you type +. On the first picture above you can see what will appear on your terminal. Now, run the above application program: sudo python3 helloWorld.py In my case: 10.0.1.27 Running the Application If you are not sure about your RPi IP address, run on your terminal: ifconfigĪt wlan0: section you will find it. Once this script is running from the command line at the terminal, the server starts to “listen” on port 80, reporting any errors: if _name_ = '_main_': app.run(debug=True, port=80, host='0.0.0.0') Raspberry PI IP Address: In this case, only send the text “Hello World!” to the client’s web browser thru “return” def index(): return "Hello Word"Ĥ. Run the index() function when someone accesses the root URL (‘/’) of the server.
Create a Flask object called app: app = Flask(_name_)ģ. Load the Flask module into your Python script: from flask import FlaskĢ.
ISTAT SERVER ON RASPI CODE
Copy the “Hello Word” code below on your IDE and save it for example, as helloWorld.pyįrom flask import Flask app = Flask(_name_) def index(): return 'Hello world' if _name_ = '_main_': app.run(debug=True, port=80, host='0.0.0.0')ġ.Open your Python3 IDE, Thonny or Geany.Now, let’s create our first python WebServer with Flask: The final folder “tree”, will look like: /rpiWebServer /static /templates The Python WebServer Application Go to your newer created folder: cd rpiWebServerĪnd create the 2 new sub-folders: mkdir static On this folder, let’s create 2 other sub-folders: static for CSS and eventually JavaScript files and templates for HTML files (or more precisely, Jinja2 templates. There we will save our python files (application): /home/pi/Documents/Server The above command will create a folder named “Server”. The best when you start a new project is to create a folder where to have your files organized.
ISTAT SERVER ON RASPI INSTALL
Go to Terminal and enter: sudo apt-get install python3-flask The first thing to do is to install Flask on your Raspberry Pi. On this tutorial, we will use a Raspberry Pi as a local Web Server, where we will control via a simple webpage, 3 of its GPIOs programmed as outputs (acting as actuators) and monitor 2 of its GPIOs, programmed as inputs ( sensors). However, Flask supports extensions that can add application features as if they were implemented in Flask itself. It has no database abstraction layer, form validation, or any other components where pre-existing third-party libraries provide common functions. Introductionįlask is called a micro framework because it does not require particular tools or libraries. With Flask, will be very simple to control Raspberry GPIOs over the internet.Īfter you read this tutorial, please give a visit to its continuation: From Data to Graph: a Web Jorney With Flask and SQLite 1. For this project here, we will use FLASK, a very simple and free microframework for Python.
ISTAT SERVER ON RASPI HOW TO
For example, on my tutorial: IoT - Controlling a Raspberry Pi Robot Over Internet With HTML and Shell Scripts Only, we have explored how to control a robot over the local network using the LIGHTTPD WebServer. Let’s create a simple WebServer to control things in your home. Python WebServer With Flask and Raspberry Pi
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