writing first program in geany for raspberry pi

Writing first program in geany for raspberry pi install#
Writing first program in geany for raspberry pi code#
Writing first program in geany for raspberry pi series#

Here’s an example: # This is a commentĪs you can see, only line 1 and line 3 are output because we commented out the middle command.Īs already said, variables can have different values. The rest of the line is then no longer executed. In Python, comments begin with a hashtag (#).

Writing first program in geany for raspberry pi code#

Such comments are available in every programming language and can also be used to “mute” parts of the code so that they are not executed.

There are also no two variables that can have the same name.Īnother useful feature is comments that explain the code in case someone else or you look at the code again later. Also, no special characters (apart from the underscore) may be used. An addition is not possible here and would lead to an error.īy the way: The variable can be named as you wish, but must not begin with a number. In the next example we create two variables and add the first to the second (and save the result in the second variable – so we overwrite it): number_1 = 7īut be careful: In addition to (integer) numbers, variables can also e.g. The advantage of variables is that we can easily overwrite their value. Would you like an example? Here: number = 7 This is sort of a placeholder that can take on different values and can be addressed via its name. Therefore, we now create a so-called variable. Now it is quite boring to just print out a sentence. Since it is a character string, we have to put also the quotation marks at the beginning and end, since other words are interpreted as variables, which we will come to in a moment. Within the brackets, we give parameters which the function needs. All you need to do is type in the following line and send it with Enter: print('Hello World') If you are interested in the differences in detail, you can read this article.Įnough words, we’re starting! In the console we want to start with a typical “Hello World” application. The code we write is executable on both versions. There are a few differences between those two versions, but they do not matter to get started. If you are wondering why we took Python 3 and whether you can use Python 2, the answer is that both are possible.

We will write our code in this:Ĭlick on “REPL” on the Top bar, so that we can see our output immediately. The Python console now opens and it looks like this.

Writing first program in geany for raspberry pi install#

If you don’t see this option, you can either install it (Preferences -> Recommended Software) or also use the Thonny Python IDE.įirst, you are asked for the Editor Mode. Open this by firstly clicking the Raspberry Pi symbol in the top left and then under Programming on “mu”. We now open the Python console, in which we can immediately enter program code. Shortly after, the startup process is complete and we see the desktop: The display should now light up and a few lines of code should appear on a black background. This is done simply by connecting the micro USB cable and connecting it to power. As soon as the keyboard, mouse and display are connected via HDMI cable, we can start it. Transfer Raspberry Pi Raspbian OS to an SD Card (Windows)Īfter the image is on the SD card, we insert it into the Raspberry Pi. Then we transfer the included file to the micro SD card. The Raspberry Pi Foundation provides the so-called Raspbian OS, which we need to download.

First of all, it is necessary that the Raspberry Pi gets an operating system.

Raspberry Pi (the model doesn’t matter – I don’t recommend Model Zero)īefore we start programming, we need to take a few steps to set up the environment.To get started, we need the following hardware parts: Programming the Raspberry Pi: Getting Started with Python (Simon Monk).pure Python basics: Python Crash Course (Eric Matthes ).In particular, I can recommend one of these two books for learning: A book is very useful for deepening your knowledge and looking things up.

Writing first program in geany for raspberry pi series#

We use Python as the programming language, since it is one of the easiest languages to learn for beginners and there are also usually the most references and examples available.Ī note in advance: The tutorial series is intended to make it easier to get started with programming on the Raspberry Pi, but should not be taken as an independent course. The big advantage is that we can also write a hardware-related code, which allows us to use the Raspberry Pi’s GPIO pins. Therefore I would like to clear that hurdle in this series of tutorials and encourage learning to program with the Raspberry Pi. Many (absolute) beginners get a Raspberry Pi as a gift, but have often little or no programming knowledge.