Power LED
A replacement for the Kitchen or Ceiling halogen lamp set-up, controlled via the network, powered by POE over the network cable.
Powered by POE from the network cable and so able to provide emergency lighting if needed, using LED lighting and optional control of higher power loads with relays.
Or powered by an external PSU for higher power lighting (i.e. Halogen) – perhaps with 1 fixed channel from POE for Emergency lighting.
Power up to 3x LEDs (1/3/10W). Although initial investigation shows that a halogen replacement lamp consumes about 500mA much more than I'd expected, so the number of lamps that can be powered might make this a no-go or POE power alone. Also the plug in lamps feature current limiting circuitry inside the lamp module, which means that the lamp can't be driven by a PWM source which would be nice for dimming or helping manage power usage (e.g. 3 lamps all flashed quickly one after the other on a 33% duty cycle could average the power out to the same as one lamp without noticeable effect on light levels if done quickly enough).
Switch up to 3x 50W Halogen or mains lamps using relays.
Modification of table/floor lamps with dedicated LED lights so they are network connected, again controlled via home automation over the network using the Netduino and powered by POE, providing the ability again to have these devices act as an emergency lighting source. With this setup the current limiting circuit could be on the Netduino side of things and so the LED driven by PWM to control light levels (you can also power the LED's much harder when flashing them so making them brighter!)
Code for the project is available from GitHub
git://github.com/BookSwapSteve/PowerLED.gitNotes:
Power LED Notes