.
Light
Sensor
Detects when light levels get brighter
Circuit Diagram
Component Table

Item
Values
Sensor
LDR
Miniature
£0.50 + VAT
VR1
Preset
Variable
Resistor
5K Ohm
£0.10 + VAT

Guide prices only
(+ VAT)
.
Dark
Sensor
Detects when light levels get darker
Circuit Diagram
Component Table

Item
Values
Sensor
LDR
Miniature
£0.50 + VAT
VR1
Preset
Variable
Resistor
50K Ohm
£0.11+ VAT

Guide prices only
(+ VAT)
.
Cold
Sensor
Detects when it gets colder
Circuit Diagram
Component Table

Item
Values
Sensor
Thermistor
£0.28 + VAT
ntc
VR1
Preset
Variable
Resistor
500K Ohm
£0.08 + VAT

Guide prices only
(+ VAT)
.
Heat
Sensor
Detects when it gets warmer
Circuit Diagram
Component Table

Item
Values
Sensor
n.t.c.
Thermistor
£0.28 + VAT
ntc
VR1
Preset
Variable
Resistor
5K Ohm
£0.09 + VAT

Guide prices only
(+ VAT)
.
Water
Sensor
Detects water or moisture levels
Circuit Diagram
Component Table

Item
Values
Sensor
water
£0.20
VR1
Preset
Variable
Resistor
50K Ohm
£0.12 + VAT

Guide prices only
(+ VAT)
.
Touch
Sensor
Detects the touch of a finger
Circuit Diagram
Component Table

Item
Values
Sensor
touch
£0.20
R4
Fixed
Resistor
1M Ohm
£0.01 + VAT

Guide prices only
(+ VAT)
.
Position
Sensor
Detects a mechanical turning movement
Circuit Diagram
Component Table

Item
Values
Sensor
Potentio-
meter (pot)
470K Ohm
£0.61 + VAT
VR1
Preset
Variable
Resistor
50K Ohm
£0.12 + VAT

Guide prices only
(+ VAT)