Category Archives: Digital

Everything and anything related to digital electronics

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

A step in the right direction

Posted on 2009-07-23 by M. Eric Carr

Well, that would explain it… The reason that the quadruped robot was doing the “funky chicken” instead of walking smoothly was mostly due to a major bug in the gait angle calculations. The angle of the leg is the sum … Continue reading →

Posted in Coding, Digital, PIC Microcontrollers, Robotics, SIGMA Walking Robot | 1 Comment

Walker robot progress

Posted on 2009-07-15 by M. Eric Carr

Well, it moves. The gait algorithm is still handcoded instead of evolved (I’m working on finding a physics sim I can use for that), and is less than efficient — but at least it’s going in the right direction. The … Continue reading →

Posted in Coding, Digital, PIC Microcontrollers, Robotics, SIGMA Walking Robot | Leave a comment

The end of an era

Posted on 2009-06-12 by M. Eric Carr

TV in the US goes digital today. As someone who has seen firsthand the magic that the Digital Revolution has brought us, I know that this is a Good Thing(tm). As a card-carrying Paleotechnologist (not to mention child of the … Continue reading →

Posted in Digital, Nostalgia | 2 Comments