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Computer Science IGCSEPDF 73
142 pagesrevision 46930
PDF 73
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Actuators: Traffic lights
Features:
● Adjusts based on traffic flow
● Uses timed cycles or sensor data
Control:
● Iftemperature too low → heater ON
● Iflight too low → lamp ON
● Ifhumidity too low → water pump ON
Sensors: Temperature, humidity, light
Processor: Adjusts environmental conditions
Actuators: Heaters, sprinklers, lamps
Cycle Example:
1. Fill with water (until water-level sensor triggers)
Sensors: Temperature, water level, spin speed
Processor: Controls washing, rinsing, and spinning
Actuators: Valves, motors, heaters
3. Greenhouse Control System
4. Automatic Washing Machine