Author Archives: M. Eric Carr

ROMfoolery

Posted on 2009-09-03 by M. Eric Carr

“I spy, with my little eye, a ROM address beginning with the sequence 0001010000011001…” I’ve recently been playing with DS18B20 One-Wire digital temperature sensors (from Sparkfun — big surprise there). They’re fun little devices — accurate and cheap. They’re also … Continue reading →

Posted in Digital, PIC Microcontrollers | 1 Comment

PIC programming, Cadillac style!

Posted on 2009-08-26 by M. Eric Carr

I’ve been working with the PIC18F4620, and am impressed by how easy it is to program, compared to the smaller PICs. I think I’m in love. Or at least in lust. Here are some of the improvements from an embedded … Continue reading →

Posted in Coding, Digital, PIC Microcontrollers | Leave a comment

Paleotech, through the eyes of a Millenial…

Posted on 2009-08-13 by M. Eric Carr

What happens when you give a modern teenager a Walkman? You get some interesting insights about technology. It’s amazing how far technology has come — and a reminder that yes, there really is such a thing as paleotechnology. (For us … Continue reading →

Posted in Analog, Digital, Nostalgia | Leave a comment

Digital blasphemy?

Posted on 2009-08-10 by M. Eric Carr

When is a 555 not a 555? When it’s really a PIC! The design of the DrACo/Z80 computer calls for a 555 timer (a great piece of paleotech, even if it still isn’t sure after 38 years whether it’s really … Continue reading →

Posted in 555, Analog, Digital | Leave a comment