If you're thinking of building some DIY home automation, this looks like an interesting idea. At the heart is a PIC16F84 that decodes IR signals and controls six outputs - in this case, relays to activate various appliances. The PIC is dirt cheap - if you get a deal on some relays you should be able to build a small local IR HA system for $30... This might be just the thing for my office. It's … [Read more...]
Silvia PIC controlled PID looped Espresso Machine
September 8, 2007 By 9 Comments
Last night I rebuilt my ECM Giotto with a new boiler. I've seen PID controlled machines before, but today I stumbled across this modded Rancillo Silvia. [Tim] replaced the internal brain with a PIC controller, added a NES control pad for input, a VFD display and a custom laser cut acrylic top. He used the PIC to provide PID control and PWM heater control with the usual solid state relays. I was … [Read more...]
Tripmate gps data logger
January 26, 2007 By 7 Comments
This one is fitting - I was just checking out Suunto's sweet gps data logging watches today. [Steve Cholewiak] sent in his diy GPS data logger. It uses an old DeLorme tripmate - these were serial gps units that ran off of internal batteries. A PIC controller reads the NMEA sentences from the tripmate. Then it stores the track data to an EEPROM. The same serial connection is used to retrieve the … [Read more...]
electronic door lock
October 22, 2006 By 9 Comments
[Dheera] sent in his electronic door lock. The current version is purely microcontroller based, but I loved this crazy iteration. Seeing something like this evolve is fantastic. I really wanted a keypad door lock when I was old enough to dream of electric sheep. … [Read more...]
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