Trying to find a picture! Might be on my work PC.
Of course Julf ranks pretty high in the geek royalty stakes given he uses Dallas iButtons to unlock the front door at his house.
We use those too at work...rather than buy in a system, we designed, built and has working and installed a iButton entry system before TI approved our NDA for their RFID chip which we were originally going to use!
Incidentally it's the same board that controls the door bell circus music. I did have it playing sound samples via a PWM, but the piezo driver out of the "sound bomb" uses transformers and they wont let through the frequencies unfortunately
I wanted homer simpson as our doorbell!
No light switches in our building either, when the front door unlocks it flicks on the foyer lights. Each room has door sensors and PIR's which control lights in each room, they also broadcast their inputs over the TCP/IP network so that other units can make use of them if needed. Each room broadcasts it's occupancy state & temperature so that unit that controls the heating can turn on the valve and fire the boiler for that room!
Yes, we are geeks.
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