PowerSwitch Tail, 104
Practical Computer Vision with Sim-
pleCV (Demaagd, Oliver, Oosten-
dorp, and Scott), 160
print() function (Python), 66
processes, 41
ID numbers, getting, 42
killing, 41
listing, 41
processor (Raspberry Pi), 20
product prototyping, xi
programming, learning, xi
programs, killing, 41
project platforms, xii
projects
Cron Lamp Timer, 102
making GIFs, 144
Raspberry Pi Photobooth, 160-165
Simple Soundboard, 116-121
Web Lamp, 184-189
Providence, Rhode Island, 72, 221
pscommand (Linux), 42
pulse-width modulation (PWM), 124-
127, 198
PuTTY utility, 24, 203, 207-208
PWM/Servo Driver (Adafruit), 127
pySerial module, 70, 82
Python, 59-75
in Arduino, 62
blinking LEDs with, 112
buttons, reading in, 114-116
connecting to webservers,
167-176
downloading ...