HW10

10HW - Dictionaries Let us explore the RGB LEDs (neoPixels) on your CPX board. Red, green and blue (RGB) are called primary colors because all other colors can be formed through the mixing of these three. On the CPX the neoPixels are 24-bit, i.e. each color has 8 bits or 256 (= 2 8 ) values (0... 255). Some colors are important enough that got their own names, although some are more famous than others. Not every color has a name, otherwise we'd need 2 24 (that's 16,777,216) different color names to name them all. Given the color table provided below (as a dictionary): cmap = { "black" : [ 0 , 0 , 0 ], "white" : [ 255 , 255 , 255 ], "red" : [ 255 , 0 , 0 ], "lime" : [ 0 , 255 , 0 ], "blue" : [ 0 , 0 , 255 ], "yellow" : [ 255 , 255 , 0 ], "cyan" : [ 0 , 255 , 255 ], "magenta" :[ 255 , 0 , 255 ], "silver" : [ 192 , 192 , 192 ], "gray" : [ 128 , 128 , 128 ], "maroon" : [ 128 , 0 , 0 ], "olive" : [ 128 , 128 , 0 ], "green" : [ 0 , 256 , 0 ], "purple" : [ 128 , 0 , 128 ], "teal" : [ 0 , 128 , 128 ], "navy" : [ 0 , 0 , 128 ], } Your task, as will become clear, is to animate a color sequence on the RGB LED given a list of the colors' names and the duration of time (in seconds) that that color should be displayed. Note that "Black" is the way to render "no color" on the LED. spec = [ [ "MyFavorite" , 4.0 ], [ "BLACK" , 2.0 ], [ "Red" , 0.5 ], [ "White" , 0.5 ], [ "blue" , 0.5 ], [ "Black" , 2.0 ], [ "Yellow" , 0.25 ], [ "salmon" , 1.0 ], [ "lime" , 0.25 ], [ "Cyan" , 0.25 ], [ "teal" , 0.25 ], [ "blue" , 0.25 ], [ "Magenta" , 0.75 ], [ "purple" , 0.75 ], [ "maroon" , 0.75 ], [ "BLACK" , 0.75 ], [ "Red" , 0.1 ], [ "BLACK" , 0.1 ], [ "red" , 0.1 ], [ "black" , 0.1 ], [ "Red" , 0.1 ], [ "Black" , 0.1 ],

[ "Red" , 0.1 ], [ "black" , 1.0 ], [ "NotMyFavorite" , 1.0 ], [ "black" , 1.0 ] ] Keep in mind the following: Make no distinction between upper case and lower case characters - e.g. treat "Black", "BLACK" and "black" as the same. Problem 10.1 In the color map dictinary (cmap) given, add two colors of your choice "MyFavorite" and "NotMyFavorite". You have the freedom to define them any way you want. Problem 10.2 Write a function process_spec that takes a dictionary (cmap), a list (spec) and a Boolean variable (Button A) as arguments and returns False if: if the spec has a color that is not defined in the cmap or if Button A was pressed to stop the animation Otherwise return True Complete the TO DO part of the code below: In [ ]: cmap = { "black" : [ 0 , 0 , 0 ], "white" : [ 255 , 255 , 255 ], "red" : [ 255 , 0 , 0 ], "lime" : [ 0 , 255 , 0 ], "blue" : [ 0 , 0 , 255 ], "yellow" : [ 255 , 255 , 0 ], "cyan" : [ 0 , 255 , 255 ], "magenta" : [ 255 , 0 , 255 ], "silver" : [ 192 , 192 , 192 ], "gray" : [ 128 , 128 , 128 ], "maroon" : [ 128 , 0 , 0 ], "olive" : [ 128 , 128 , 0 ], "green" : [ 0 , 256 , 0 ], "purple" : [ 128 , 0 , 128 ], "teal" : [ 0 , 128 , 128 ], "navy" : [ 0 , 0 , 128 ], "MyFavorite" : [ 255 , 165 , 0 ], "NotMyFavorite" : [ 222 , 255 , 0 ] } In [ ]: from adafruit_circuitplayground import cp def process_spec ( cmap , spec , button ): if cp . button_a : print ( 'User request to end animation.' ) return False for color in spec : if color [ 0 ] . lower () not in cmap : print ( color [ 0 ] . lower ()) print ( 'Color not defined in cmap' )

Submit an ipynb (copy your code from MU) and a pdf, including videos of the CPX, as needed