The master controller is a hardware/software combination that controls and monitors physical devices. Using a USB device switch states are detected and lights/relays are activated.
Original Design
New Equipment
New Design
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Upgrade cameras
IP cameras w/ POE $1000
Ethernet cable
$109 500′ outdoor
16 port (8 w/POE) Ethernet switch
$115 Linksys LGS116P 80 Watts
Computer $1000
2 ethernet
32 meg ram
loads of HD space