Knock / clap sensor

I made a knock / clap (loud high frequency sound) sensor to control various things in my room. Three equally spaced knocks press the spacebar om my keyboard, short - long interval turns the lights on, and long - short turns the lights off. I'll post some more information later!

New stair lighting

I shone some new light onto one of my bother's old projects at my parents' house, stair lighting. I used the same stuff as in my old home, but with led strips instead of single leds.