Archive for June 2017

Stepper Motors (Part 9)

Part 1, 2, 3, 4, 5, 6, 7, 8, 9 Let’s go back with an easier application. Still for my friend Valerio, the puppets magician, who built this adorable model-phonograph: It is all wooden made and powered by… a stepper motor, using the electronics which has been described in previous post and showed again here A switch […]

To blog or not to blog ?

Blogs are wonderful tools that are very convenient for sharing all sorts of information without the burden of writing code an spending time on site maintenance (Unless you want to fine tune your style, add fancy animations or perform advanced functions). This is an almost trivial statement for those who started publishing on the net a […]

Undocumented commands and functions

Long time ago as I was learning about George Boole  algebra I immediately though about using a (hidden) sequence of button presses to lock and unlock safes, doors, etc.  In addition to setting arbitrary sequences of button presses, I had the idea of taking into account the time spent on pressing each button which would […]