1.3 control output devices
TRANSCRIPT
Hyper linking
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Devices
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Devices
• They convert computer signals into movement.
1. Some devices are considered actuators themselves
2. Other devices are connected to a computer which sends a response signal to an intermediary actuator. The actuator would convert a computer signal into movement causing an action to happen.
For example: light bulb comes on.
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Devices
Instructions input into the
computerProcessing
Computer Signal sent to
motor
Motor starts operating.
× Stepper motor- most common
× Motors can be used in automatic washing machines, automatic cookers, can cause water to come into the heating systems, greenhouses and dishwashers.
× They can also be used to move robot arms
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Devices
• Actuator connected from computer to buzzer. The purpose of the actuator is to switch the buzzer on or off.
• They are used in automatic cookers.
• They are also used in mobile phones.
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Devices
• An actuator is connected from the computer to the light bulb. The purpose of the actuator is to switch the light on or off.
• They are used in computer-controlled greenhouses in order to control the amount of light.
• They are also used in security lamps and dimmers inside the house.
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Devices
× An actuator is connected from the computer to the heater.
× This is to turn the heater on and off.× Other uses of heaters are: 1. Automatic washing machines2. Automatic cookers3. Central heating systems4. Computer-controlled greenhouses.