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Issue #202 May 2007
The Wittness Camera
Build a Self-Recording Surveillance Camera
Grand Prize Atmel AVR Design Contest 2006
by Alberto Ricci Bitti
Start | Solid-State Recording | Full Interaction | Complete Picture | Basic Instinct | Filled To Capacity | Speech Preparation | Circuit Implementation | Concept To Prototype | Picture Inspection |Design Evolution | Sources & PDF
Sources & PDF
Download the PDF of this article.
Author’s note: I want to thank AT&T Research Laboratories for giving me permission to use voice samples produced by the Natural Voices system. I also want to thank Franz Josef Voegel, the author of the AVR-DOS library, for his active support in debugging the project.
Alberto Ricci Bitti holds a degree in Computer Science from the University of Milan. He has 15 years of experience designing and writing software for embedded systems. Alberto currently designs industrial controllers and instrumentation for Eptar. In his free time, he enjoys traveling and competing in design contests.You may visit his web site www.riccibitti.com and write him at a.riccibitti@iname.com.
PROJECT FILES
To download code, go to ftp://ftp.circuitcellar.com/pub/Circuit_Cellar/2007/202.
SOURCES
ATmega32 Microcontroller, ATmega128 microcontroller,
and STK300 starter kit
Atmel Corp.
www.atmel.com
Natural Voices text-to-speech tool
AT&T Research Laboratories
www.research.att.com/~ttsweb/tts/
AVR-DOS Library for BASCOM-AVR
AVR-DOS
http://members.aon.at/voegel/
KC778B Master PIR control chip
COMedia, Ltd.
www.comedia.com
ITC-M-328 JPEG Camera module and ITM-PIR-256 movement
sensor
Intertec Components
www.intertec-components.de
BASCOM-AVR 8051 Compiler
MCS Electronics
www.mcselec.com
RE200B Thermopile
Nicera Philippines, Inc.
http://www.nicera.ph/
TSOP34836 IR Receiver
Vishay Semiconductors, Inc.
www.vishay.com
FPS009-3202 Multimedia card connector
Yamaichi Electronics, Inc.
www.yamaichi.com
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