Developers guide

Chapter 8: Indicators
Indicators
Psion Teklogix Mobile Devices SDK Developers Guide 51
8.1 Indicators
Most Psion Teklogix computers have LEDs that can be controlled by applications. Typically, these
are used to indicate device activity, data reception, data transmission, error conditions, alerts, and
software updates. LEDs are available as follows:
8.2 Using LED Colours
Each LED emits one or more colours. Some colours are built into the LED. Other colours are
created by illuminating two or more built-in colours at the same time. The following terms are
used to distinguish these colours:
Component colour: This colour is built into the LED.
Composite colour: This colour is created by illuminating two or more component colours at the
same time on the LED.
Default on colour: A LED is illuminated with the default on colour, when it is illuminated
without explicitly naming an illumination colour.
Available colour: This can be either a component colour or a composite colour.
LED colours are available on Psion Teklogix computers as follows:
Psion Teklogix
Computer
Number
Of LEDs
Type Of L EDs
Number Of LEDs
Available For
Applications
LED Names
7530 4 Tricolour 1 Application
7535 4 Tricolour 1 Application
8515 1 Single colour 0 N/A
8525/8530 4 Tricolour 1 Application
Ikôn 3 Single colour 1 Application
NEO 1 Tr i c o l our 1 Application
WORKABOUTPRO 1 Tricolour 1 Application
Psion Teklogix
Computer
LED Name
Component
Colors
Composite
Colours
Default On
Colour
7530 Application Red
Green
Yellow Green
7535 Application Red
Green
Yellow Green
8525/8530 Application Red
Green
Yellow Green
Ikôn Application Yel l o w Yellow Yellow
NEO Application Red
Green
Yellow Green
WORKABOUTPRO Application Red
Green
Yellow Green