Python Programming for Raspberry Pi, Sams Teach Yourself in 24 Hours

You want the playlist file to have the file names of the songs, including their file extension. This way, you can play different ...

Now you have your playlist loaded, you have a removable drive with the music ready, and you know how to load and play the music. ...

if Event.type in (QUIT,KEYDOWN,MOUSEBUTTONDOWN): Graceful_Exit() But wait! This actually doesn’t work! For PyGame to properly ha ...

PlayList = MusicDirectory + '/' + 'playlist.txt' PlayList = open(PlayList, 'r') for Song in PlayList: #Load PlayList into SongL ...

Play_Music(SongList,SongNumber) SongNumber = SongNumber + 1 # if Event.type in (QUIT,KEYDOWN,MOUSEBUTTONDOWN): Graceful_Exit() N ...

drive. LISTING 23.5 The script2305.py Special Presentation Click here to view code image #script2305.py - Special HD Presentatio ...

Gracefully Exit Script Function def Graceful_Exit (): mixer.music.stop() #Stop any music. mixer.quit() #Quit mixer time.delay( ...

Play_Music(SongList,SongNumber) SongNumber = SongNumber + 1 # while True: # Introduction Screen ############################## # ...

do not have to retype an entire script into your favorite text editor to modify it for your own needs. Summary In this hour, you ...

Hour 24. Working with Advanced Pi/Python Projects What You’ll Learn in This Hour: Working with the GPIO interface Exploring the ...

The GPIO Pin Layout The GPIO interface is the series of 26 pins (in two rows of 13 pins each) that stick up at the upper- left c ...

TABLE 24.1 The GPIO Pins Watch Out!: GPIO Pins Versus Signals The GPIO signals are numbered after the pin number on the Broadcom ...

FIGURE 24.1 The Pi Cobbler breakout box connected to a Raspberry Pi via a ribbon cable. The Pi Cobbler unit labels the breakout ...

FIGURE 24.2 The Gertboard plugged in to a Raspberry Pi. The Gertboard contains circuits for experimenting with many common featu ...

TABLE 24.2 The Gertboard Pin Block Layout The three-pin J7 block is crucial. You must place a jumper between the middle pin and ...

As mentioned earlier this hour, to confuse things, there are two ways to reference the GPIO signals in the option placeholder: U ...

An LED A piece of wire for connecting the breadboard sections Try It Yourself: Build the Pi Cobbler Circuit Follow these steps t ...

Setting Up the Gertboard for Output The beauty of the Gertboard is that it already has all the components on the board for you, ...

>>> If this doesn’t work, you need to make sure that you started the Python v3 command prompt using the sudo command. I ...

When the program is running, you should see the LED blink on and off. Congratulations! You just programmed your first digital ou ...