Inputs (AQA GCSE Design and Technology): Flashcards
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15 cards from this deck
What do electronic systems use to work together?
What do electronic systems use to work together?
Electrical signals
The 3 stages of electronic system operation
The 3 stages of electronic system operation
Input signal, process it, output response
The 4 main types of input devices are
The 4 main types of input devices are
Light, temperature, pressure sensors and switches
Component used in light sensors
Component used in light sensors
Light Dependent Resistor (LDR)
LDR resistance in darkness
LDR resistance in darkness
High resistance
LDR resistance in bright light
LDR resistance in bright light
Low resistance (drops significantly)
Unit for electrical resistance
Unit for electrical resistance
Ohms (Ω)
Component used in temperature sensors
Component used in temperature sensors
Thermistors
Thermistor resistance when cold
Thermistor resistance when cold
High resistance
Thermistor resistance when hot
Thermistor resistance when hot
Low resistance (decreases)
Normally Open (NO) switch meaning
Normally Open (NO) switch meaning
Circuit disconnected until activated
Normally Closed (NC) switch meaning
Normally Closed (NC) switch meaning
Circuit connected until triggered to break
Push to Make (PTM) switch operation
Push to Make (PTM) switch operation
Normally open, closes when pressed
Push to Break (PTB) switch operation
Push to Break (PTB) switch operation
Normally closed, breaks when pressed
Toggle switch characteristic
Toggle switch characteristic
Stays in position set, distinct on/off positions