Arduino uno User Manual

Figure 28—A typical SMTP session on the Arduino
Off-the-shelf sensors hide these details, so you can use a single digital pin to
check whether someone is moving in the sensor’s field of view. The Parallax
PIR sensor
6
is a good example of such a device, and we can use it as the basis
of our burglar alarm.
Figure 29—Top and bottom of a passive infrared sensor
6. http://www.parallax.com/product/555-28027
Chapter 11. Creating a Burglar Alarm with Email Notification • 194
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Arduino uno Specifications

General

Form factor	Arduino
Certification	RoHS, FC, CE
Processor model	-
Processor frequency	- MHz
Microcontroller model	ATmega328
Microcontroller frequency	16 MHz
DC input voltage	7-12 V
Operating voltage	5 V
DC current per I/O pin	40 mA
Flash memory	0.032 MB
Maximum internal memory	- GB
SRAM (Static Random Access Memory)	2 KB
EEPROM (Electrically Erasable Programmable Read-Only Memory)	1 KB
Wi-Fi	No
Number of analog I/O pins	6
Number of digital I/O pins	14

Weight and Dimensions

Board dimensions	53.4 x 68.6 mm