Speaker Geoffrey D. Bennett
Time 2004-01-16 12:00
Conference LCA2004

240V –> switchboard –> switch –> light


240V –> switchboard –> CBUS relay –> switches/button or dimmer –> lights

CAT5, but not Ethernet

Motorola HC05 (a few years ago)

32.5V DC to power light switched 4KHz

infrared sensor, light sensors, serial interface, Ethernet interface

buttons assigned to group numbers output channels assigned to groups

long press, increase brightness short press, decrease brightness

all off button

1 light = switch1 or switch2 1 light = switch1 and switch2

ASCII serial commands

serial sniffing send stuff, receive stuff Intel hex dump, looks similar address data checksum

information on clips website

cost to get started

$3000 for first switch

standard house with wiring, $5000 for system to be installed. ceiling fans, power points used to control Christmas tree Dynalite, similar system, open protocol X10??? no intelligence, just the protocol X10 sensors are expensive Need Australian models, are legal in Australia. X10 is slower

open hardware project???

$30 per cheap switch $100 per light switch

soft dimmer, increase brightness gradually, increase globe life relays noisy, but required for fluorescent lights

Oscar, extension on alarm control system, not very good

heating/cooling, yes, if via 240V interface

turn lights on/off from the comfort of your mobile phone

reliability single point of failure, switch board can have two switch boards hit by lightning could cause problems two wires