I recently received a request from a social media friend to clear some confusion about a RS-422 communication project. I quickly brushed up my knowledge on the subject and resumed some basic ...

Marlboro, Mass.—Back in February I reviewed a number of Data Translation 's ECONseries of USB 2.0 (Universal Serial Bus) data-acquisition and control modules, among them a digital I/O module called ...

This may very well be the smallest homemade TTL CPU we’ve ever seen. Measuring at one square inch, this tiny chip boasts 40 connections, an 8-bit databus, a 16-bit address bus, a 64 kB memory space, ...