Portable input/output instrument for interfacing student digital system designs

Christopher R Carroll

Research output: Contribution to journalConference articlepeer-review

5 Scopus citations


A microcontroller-based instrument has been built into an old telephone handset. The instrument provides keypad input and multi-digit display output. The keypad in the telephone handset is used as the input device, and a raster generated on standard oscilloscope is used to produce a display showing a multiple-digit output. This device has been used as a standard interface for many different digital systems designed by students in the second quarter digital circuit design class at the University of Minnesota Duluth.

Original languageEnglish (US)
JournalASEE Annual Conference Proceedings
StatePublished - Dec 1 1998
EventProceedings of the 1998 Annual ASEE Conference - Seattle, WA, USA
Duration: Jun 28 1998Jul 1 1998

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