LOOK MA, NO PC!

THE MAGAZINE FOR COMPUTER APPLICATIONS Circuit Cellar Online offers articles illustrating creative solutions and unique applications through complete projects, practical tutorials, and useful design techniques.

	LOOK MA, NO PC!
A $55 Webcam by Steve Freyder, David Helland, & Bruce LIghtner Start • Hardware Design • Picking a Camera • Cheap CMOS Cameras • PicoWeb Server Hardware • Firmware Functions • Software Design • PicoWeb Firmware • Java Applet • Smile • Source and PDF SOURCES and PDF Download the PDF of this Article. Steve Freyder telecommutes from his home in La Jolla, CA for Transcore, working on automated toll collection systems. He lost his "real" office many years ago by never visiting it. Steve has been programming since he first discovered computers in high school in 1970. You can reach him at steve@freyder.net. David Helland works for Science Applications International Corporation (SAIC) in San Diego, CA, most recently working on portable electronics for military training range systems. Dave has been building hardware and software systems for several decades. In his spare time Dave restores vintage fiberglass dune buggies. You can reach him at dhelland@worldnet.att.net. Bruce Lightner also works from home for Lightner Engineering in La Jolla, CA. He too discovered computers several decades ago and has been building hardware and software for them ever since. In his spare time he likes to abuse Dave�s dune buggies. You can reach him at lightner@lightner.net. RESOURCE S. Freyder, D. Helland, and B. Lightner, "A $25 Web Server", Circuit Cellar Online, July 1999, www.chipcenter.com/circuitcellar/july99/c79bl1.htm. REFERENCES [1] T. Chen, "A Study of Spatial Color Interpolation Algorithms for Single-Detector Digital Cameras", www-ise.stanford.edu/~tingchen/main.htm. [2] B. Day and J. Knudsen, "Image processing with Java 2D", JavaWorld, www.javaworld .com/javaworld/jw-09-1998/jw-09-media.html, September 1998. SOFTWARE The software for this article is available on the Circuit Cellar website. SOURCES PicoWeb server Lightner Engineering www.picoweb.net Digital camera software QuickCam third-party drivers www.crynwr.com/qcpc CpiA webcam driver for Linux http://webcam.sourceforge.net PhotoPC digital camera software (open-source freeware) www.average.org/digicam VVL300 digital output sensor STMicroelectronics www.vvl.co.uk/products/image_sensors Java compiler Java 2 SDK, Standard Edition Version 1 Sun Microsystems http://java.sun.com/products/jdk/1.2/ PREVIOUS Circuit Cellar provides up-to-date information for engineers. Visit www.circuitcellar.com for more information and additional articles. For subscription information, call (860) 875-2199, subscribe@circuitcellar.com or subscribe online. �Circuit Cellar, the Magazine for Computer Applications. Posted with permission.