The Twelve-Factor App methodology recommends storing configurations in the environment.
When you follow this methodology and want to run your Python application from PyCharm, you need to create a customised run configuration.
In case you need it, this post shows how to set environment variables for your Python application from PyCharm.
When it comes to Python development, PyCharm is my favourite IDE.
Before working on a new Python project, I like to create a virtual environment and associate it with the corresponding PyCharm project. In case you like this mode of operation, this is how you can associate a virtual environment with a Python project in PyCharm.
I had always wanted to measure the temperature and humidity of the environment where my herbs are grown at.
Since I had a few pieces of Raspberry Pi 3 lying around the house, I decided to use one of them to measure the temperature and humidity of the area of the house where my herbs are.
An additional sensor is required to measure the temperature and humidity of the environment. Therefore, I went to AliExpress and got a DHT11 sensor. By connecting a DHT11 sensor to my Raspberry Pi 3, I can give it the ability to read the temperature and humidity of its environment.
Given these points, I created this post to show how to read temperature and humidity from a DHT11 sensor that is connected to a Raspberry Pi 3.
In order for us to check the temperature and humidity from the DHT11 sensor, we will build a simple Flask application that returns the temperature and humidity values as HTTP responses to HTTP clients.
A fun way to test your Raspberry Pi Camera on your Raspberry Pi 3 is to build a prototype that takes a picture at the press of a button. Through such an activity, we will be able to experience:
Given these points, this post shows how you can build a Raspberry Pi 3 prototype camera that takes a picture at the press of a button.
When you are building a Raspberry Pi camera project, you may want to compress the images captured from the camera to reduce the time to upload your image to a server endpoint. Moreover, when you connect your Raspberry Pi to your iPhone Personal WiFi hotspot, you will want to incur minimal mobile bandwidth charges from demonstrating your Raspberry Pi project in your class.
You may have either:
In this case, you will have the option to use Pillow, a fork of Python Imaging Library, to compress your jpeg image.
Undeniably, the HTTP protocol had become the dominant communication protocol between computers.
Through the HTTP protocol, a HTTP client can send data to a HTTP server. For example, a client can upload a file and some data from to a HTTP server through a HTTP multipart request.
If you are building that client with Python 3, then you can use the requests library to construct the HTTP multipart request easily.
In case you need it, this is how we can upload a file and some data through HTTP multipart in Python 3 using the requests library.
When you are building a Raspberry Pi project that deals with images, the Python Imaging Library, Pillow can be very useful. For example, if you connect a camera to your Raspberry Pi 2 or 3 and took a picture, you may want to resize the picture before sending it to a server endpoint.
In case you have trouble setting up Pillow on Raspbian Stretch Lite, this post is for your reference.
A programming language give programmers an interface to create computer applications to serve different use cases. On the other hand, a Raspberry Pi is one of the things that a programmer should consider getting.
Raspbian Stretch Lite is the official operating system for programmers to run server applications on a Raspberry Pi. You can use Raspbian Stretch Lite for applications that do not require a graphical user interface.
So what programming languages can you use for building applications for Raspbian Stretch Lite?
This post discusses some programming languages that you can use for building applications for Raspbian Stretch Lite.
To permutate a string is to change the order or arrangement of the characters that the string is made up of. Given that n is the number of characters, there are n! different ways to permutate a given string.
This post shows how we can permutate a string in Python 3.
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