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Auto lighting control system for the staircase
y The light is on whenever the switch is turned on.
y Lighting system shall be turned off in a few minutes automatically or manually
Shortcoming: The user has no way to reset the turn-off time.
1.3 Apply SG2 in Lighting System
Devices Applied
z Q1 Lamp H1
z I1(No terminal) Switch B1
z I2(No terminal) Infrared sensor for climbing
Wiring Diagram for Lighting System
Illustrated program using SG2 in lighting system
Ladder：
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