About the Author

---

James Kretzschmar retired from the U.S. Air Force in 2004 after a 25 year career as a general dentist. He received his BA in Chemistry from Texas Christian University in 1976, Doctorate in Dental Surgery from Baylor College of Dentistry in 1979, and Masters in Basic Science from the University of Colorado at Colorado Springs in 1988. He holds an FCC Extra Class amateur radio license (AE7AX) and enjoys all aspects of electronics. Through self-study and as a student in several electrical engineering courses he has become proficient in designing and building transmitters, receivers, and microcontroller projects. Additionally, he has recent journal publications involving microcontrollers in QEX, A Forum for Communications Experimenters. From 2019 to 2022 he was a part time Temporary Lecturer at the University of Wyoming, and designed and wrote the lab portions of the Microcontroller and Electric Circuit Analysis courses. He is currently a part time Physics Lab Instructor at Utah Tech University.Jeffrey Anderson received his Ph.D. in electrical engineering and computer engineering from the University of Wyoming in 2004 with a research emphasis in image segmentation of objects in serial sectioned images. He received his BS and ME from the University of Utah in 1989 and 1992, respectively. He has worked on a closed loop controller for mechanical ventilation of patients with adult respiratory distress syndrome. Additionally, he has worked on a servo lung simulator with related control method that was awarded a U.S. patent. He is a member of IEEE and Tau Beta Pi. He is a registered Professional Engineer in the state of Wyoming. He taught mechanical, electrical, and computer engineering courses at the University of Wyoming as a Senior Lecturer for 15 years. He is currently an Assistant Professor in the Electrical Engineering program at Utah Tech University.Steven F. Barrett, Ph.D., P.E. received the BS Electronic Engineering Technology from the University ofNebraska at Omaha in 1979, the M.E.E.E. from the University of Idaho at Moscow in 1986, and the Ph.D. Electrical Engineering from The University of Texas at Austin in 1993. He was formally an active duty faculty member at the United States Air Force Academy, Colorado and is now the Vice Provost of Undergraduate Education at the University of Wyoming and Professor of Electrical and Computer Engineering. He is a member of IEEE (Life Senior) and Tau Beta Pi (chief faculty advisor). His research interests include digital and analog image processing, computer-assisted laser surgery, and embedded controller systems. He is a registered Professional Engineer in Wyoming and Colorado. He co-wrote with Dr. Daniel Pack several textbooks on microcontrollers and embedded systems. In 2004, Barrett was named ``Wyoming Professor of the Year'' by the Carnegie Foundation for the Advancement of Teaching and in 2008 was the recipient of the National Society of Professional Engineers (NSPE) Professional Engineers in Higher Education, Engineering Education Excellence Award.