INDEX
SYMBOLS AND NUMBERS
&& (and) operator, 257
* characters, 61
{ }, 250
== (double equal sign), 252
// (double slash), 250
|| (or) operator, 257
~ (tilde), 254
28 Days Later (film), 7
A
A (amperes), 23
AA batteries, 25
AC (alternating current), 23–24
adapters for converting to DC, 24
battery chargers powered by, 25
inverters for converting DC to, 24, 49–50
voltage range, on multimeters, 242
Adafruit “Learn Arduino” series, 261
Adafruit PIR module, 77
Adafruit’s ARDX Experimenters Kit for Arduino, 224
adapters
for converting AC to DC, 24
USB, 48–49
Address Resolution Protocol (ARP), 100
aircraft, 10
alarms. See PIR (passive infrared) detector; quiet fire alarm; temperature ...
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