Backlight services: Difference between revisions

Line 38:

| 15 || SetAmbientLightSensorValue

|-

| 16 || GetAmbientLightSensorValue

| 16 || [[#GetAmbientLightSensorValue]]

|-

| 17 || SetBrightnessReflectionDelayLevel

Line 64:

| 28 || [3.0.0+] [[#IsVrModeEnabled]]

|}

== Ambient Light Sensor Notes ==

The BH1730 outputs 2 values. Visible light and IR light. This is then calculated through an algorithm that checks for Gain, Measurement time, filter qualities and ouputs lux (max correct measurement of 100K lux).

The default values are Gain 64x and ITIME of 38 (256 - 218). This allows for a max lux value of 17972 lux when visible light value is maximum and IR light is 0. When both of them are on their limit, the output is 1192 lux.

The sensor is fully configurable.

== GetAmbientLightSensorValue ==

Line 71:

Line 76:

! Offset || Size || Description

|-

| 0x0 || 0x4 || ~~bAbove13k~~. (u32) Equals to 1 if ~~fLux >= 13000~~.

| 0x0 || 0x4 || bOverLimit. (u32) Equals to 1 if visible or IR light data is over 65534.

|-

| 0x4 || 0x4 || fLux. (float) Value in lux from the ambient light sensor.

|}

Note: if ~~bAbove13k~~ = 1 ~~then~~ the ~~real lux~~ value ~~equals to (13000~~ - ~~fLux) + 13000 and caps out at ~25000~~.

Note: if bOverLimit=1 and the default ALS configuration is used, the measurement of fLux should not be considered and the actual max value depends on the type of light. Ranges from 12.5K - 17.5K.

== GetCurrentBrightnessSetting ==

@@ Line 38: / Line 38: @@
 | 15 || SetAmbientLightSensorValue
 |-
-| 16 || GetAmbientLightSensorValue
+| 16 || [[#GetAmbientLightSensorValue]]
 |-
 | 17 || SetBrightnessReflectionDelayLevel
@@ Line 64: / Line 64: @@
 | 28 || [3.0.0+] [[#IsVrModeEnabled]]
 |}
+== Ambient Light Sensor Notes ==
+The BH1730 outputs 2 values. Visible light and IR light. This is then calculated through an algorithm that checks for Gain, Measurement time, filter qualities and ouputs lux (max correct measurement of 100K lux).
+The default values are Gain 64x and ITIME of 38 (256 - 218). This allows for a max lux value of 17972 lux when visible light value is maximum and IR light is 0. When both of them are on their limit, the output is 1192 lux.
+The sensor is fully configurable.
 == GetAmbientLightSensorValue ==
@@ Line 71: / Line 76: @@
 ! Offset || Size || Description
 |-
-| 0x0 || 0x4 || bAbove13k. (u32) Equals to 1 if fLux >= 13000.
+| 0x0 || 0x4 || bOverLimit. (u32) Equals to 1 if visible or IR light data is over 65534.
 |-
 | 0x4 || 0x4 || fLux. (float) Value in lux from the ambient light sensor.
 |}
-Note: if bAbove13k = 1 then the real lux value equals to (13000 - fLux) + 13000 and caps out at ~25000.
+Note: if bOverLimit=1 and the default ALS configuration is used, the measurement of fLux should not be considered and the actual max value depends on the type of light. Ranges from 12.5K - 17.5K.
 == GetCurrentBrightnessSetting ==