Teach Yourself VISUALLY Raspberry Pi
Format: PDF / Kindle (mobi) / ePub
Full-color, step-by-step guidance for learning to use Raspberry Pi!
Raspberry Pi is an inexpensive, single-board computer that serves as an introductory board for students and developing computer professionals. This image-driven, visual guide shows you how the Raspberry Pi can be easily used as a stand-alone computer, a media center, a web server, and much more. Vivid, full-color images bring Raspberry Pi projects to life, while well-illustrated circuit diagrams and step-by-step practical advice cover everything from working with the included software to branching out into typical but more complex endeavors.
- Covers interesting topics for students and aspiring computer professionals
- Demonstrates how to create custom projects, work with the Raspberry OS, install other operating systems, get the most out of the Raspberry Pi, and much more
- Encourages users to study and tinker with the Raspberry Pi
Teach Yourself VISUALLY Raspberry Pi is an ideal resource for anyone who learns better with visual instruction and puts them well on their way to making the most of this low-cost computer.
type the letter or word to select the switch. Repeat these steps to select additional switches. Most commands list their switches if you type man followed by the command name. The descriptions are cryptic and hard to understand. Search online for useful examples. Understanding Root For security reasons, critical commands and files can only be accessed by a special superuser called root, and not by the default Pi user account. You cannot log in as root, but you can give yourself root privileges,
a minimum resolution of 640 × 480 and displays giant text. Good working resolutions are 1024 × 768 (hdmi_group=2, hdmi_mode=16) and 720p (hdmi_group=1, hdmi_mode=4). Set Up Audio You can play audio files on your Pi through the built-in earphone socket, through the HDMI connector, or through an external USB audio DAC (digital-to-analog converter). The earphone socket produces very poor-quality audio. For better results, use one of the alternatives. Audio support for WAV files is enabled and
www.wiley.com/go/tyvraspberrypi. Work with Loops and Repeats You can use a for statement to repeat a block of code a number of times, and set by a range function. The last number in the range is not included, so range(0,10) counts from 0 to 9, not 0 to 10, as you might expect. To keep repeating code until something happens or a test becomes true, use while, followed by the test, and a colon. while is useful when you do not know how many times you need to repeat something or when your code is
__init__ you can pass parameters to it, and the code in __init__ can use them in a calculation before setting up an initial value. If you have a game tile, use __init__ to create a variable called area, setting its value automatically when you create a tile with a given width and height. Using a Class To use a class, define a variable using the class name followed by round brackets. If you defined an __init__ method for the class, include the parameter values between the brackets. If your
Press and save the file as ball game.py. A Pygame creates a window, paints it white, and animates a ball moving from the top left. Note: The ball does not include code for bounces, so it moves off the bottom of the window. TIPS How can I animate other properties? You can animate any property in the same way you animate position — use a variable, or variables, to hold the current value, and corresponding variables to set how much the property changes on each loop repeat. How can I create