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Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "This recipe requires Python and pip to be installed on the computer."

A block of code is set as follows:

from adafruit_circuitplayground.express import cpx
import time

cpx.pixels[0] = (255, 0, 0) # set first NeoPixel to the color red
time.sleep(60)

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

from adafruit_circuitplayground.express import cpx
import time

RAINBOW = [
 0xFF0000, # red 
 0xFFA500, # orange

Any command-line input or output is written as follows:

>>> 1+1
2

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Click the Serial button on the toolbar to open a REPL session with the device."

Warnings or important notes appear like this.

Tips and tricks appear like this.