Element Path: <cwt><CORE><STNBacklight>
CWT 2110, 2115 and CWT Compact display
This attribute controls the use and the brightness of the background illumination in an STN display.
The power save function may override some light behaviour and some light configurations. See Power save mode in CORE element and Example of a light setup for more details including examples.
attributes
brightnessMax
| Range: | 0 – 100 |
| Default: | for Mains 80 |
| Description: | Maximum Brightness in % |
brightnessMin
| Range: | 0 – 100 |
| Default: | for Mains 0 |
| Description: | Minimum Brightness in % |
darkerThenLessBrightness
| Range: | true / false |
| Default: | for Mains false |
| Description: | If true, the light will decrease when it darkens outside. If false, the light will increase when it darkens outside. |
darknessMode
| Range: | Threshold, LinearFromThreshold |
| Default: | for Mains Threshold |
| Description: | The darkness dependent light modes are controlled by the Ambient Light module. |
Threshold: The brightness is set to a fixed (min./max.) value depending on whether the measured ambient light is above or below the threshold set for the ambient light sensor.
LinearFromThreshold: The backlight brightness is changed linearly to the measured ambient light when the measured ambient light is above or below the threshold (depending on the setting of the attribute darkerThenLessBrightness).
The hysteresis is not used when LinearFromTreshold mode is selected.
mode
| Range: | AlwaysOff, AlwaysOn, TurnedOnDuringPurchase, ChangedDuringDarkness, TurnedOnDuringPurchaseInDarkness. TimeControlled |
| Default: | for Mains ChangedDuringDarkness |
| Description: | See mode table below. |
AlwaysOff: The backlight is always off
AlwaysOn: Always ON except when in sleep mode. attribute brightnessMax defines brightness when turned ON
TurnedOnDuringPurchase: Turned ON when selection or payment is started. Turned OFF approximately 10 s after Accept is pressed. attribute brightnessMax defines the brightness when turned ON
ChangedDuringDarkness: The Ambient Light module calculates the brightness value.
TurnedOnDuringPurchaseInDarkness: Turned ON when the Ambient Light module determines that it is dark. The Ambient Light module calculates the brightness value.
TimeControlled: Time controlled brightness values
