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 ...

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 ...

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, ...