My Virtual Life

This is an interesting and challenging experiment. Challenging because I sometimes have problems getting from schematics to breadboards, an...

Getting past the fact that the 555 won't supply enough voltage, ever, the next question is how can we amplify it. The answer is with a t...

This has taken a while. Snow, family visiting, setting up my new generator, an fuel oil spill in my basement, and other events have dominate...

Experiment 20 builds on the logic chip exercise in #19 to build a keypad security system. The full experiment ends with hacking into a compu...