By Michael Badger
As twenty first century humans, we are living a electronic existence, yet desktop scientists worldwide warn of a declining pool of digitally literate machine technological know-how scholars. The Scratch surroundings makes it enjoyable for college kids of any age to imagine, create, and collaborate digitally.
Scratch 2.0 Beginner's consultant moment variation will educate you the way to develop into a Scratch programmer and lay the root for programming in any laptop language. even if you're making a birthday card or cloning bricks for a video game of Breakout, initiatives are approached in a step by step technique to assist you layout, create, and consider every one programming exercise.
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Extra info for Scratch 2.0 Beginner's Guide (2nd Edition)
Sample text
It also allows us to control the playback from any computer or smartphone on the same network. Initially, we will set up the Pi to connect it to an existing server (the one running on a laptop for instance), which is suitable for use around your home or garden. Later, we will look at how to make the system truly portable by removing the need for an existing server and network. The system will be self contained within a standard flight case with the speakers exposed when the lid is opened as it is possible to run Logitech Media Server on the Pi itself.
Next, we need to drill the mounting holes that will be used to bolt the speakers to the MDF panel; in this case, we will drill 4 mm holes and use M3 screws and nuts to mount the speakers. First, mark the positions of each hole by placing the speaker into the hole and making a mark on the MDF through the hole in the speaker fascia (with a pencil, for example). Next, drill a 4 mm hole in each marked position. It would be a good idea to check whether the holes line up with the speaker correctly by trial fitting it with just the screws; however, we will mount the speakers properly later.
You learned how to discover the IP address of the Pi in order to allow remote access to it over SSH; this process will be used in the majority of the projects later in this book. We also took a quick look at the GPIO expansion header, and how it is typically used to interface with external hardware. We also used this as a crude FM transmitter through which we wrote a single Python script to broadcast music. In the next chapter, we will go into further details regarding how to set up various software packages in order to run them on the Pi, as well as you will learn the various ways to configure networking when we make a portable speaker system that runs the Logitech Media Server.