94 lines
2.9 KiB
Markdown
94 lines
2.9 KiB
Markdown
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Pixelprojektor Firmware
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=====================
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## About
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## Features
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### LED 8x8 Field
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|Topic |Descriptions |settable |Values |
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|---------|--------------|:---------:|---------|
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|`device_id`/strip/pixel/|Range property from 0 - (number of pixels - 1)|yes|Color as uint32_t see [Color](#color)|
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|`device_id`/strip/color|Range property to set the effects colors 1 & 2 see: [effect colors](#effect-colors)|yes|Color as uint32_t see [Color](#color)|
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|`device_id`/strip/brightness|Sets the brightness of the pixel strip|yes|possible values: 0 - 255|
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|`device_id`/strip/effect|Set effect|yes|see: [effects](#effects)|
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|`device_id`/strip/clear|Clears the pixels strip|yes|any value is possible|
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|`device_id`/strip/length|Set the strip length|yes|Possible values: 0 - length|
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|`device_id`/strip/icon|Show the icon represented by given letter|yes|Possible values: a - Z|
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## Color
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To convert RGB value use the following bash code:
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```shell
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function rgbToColor {
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echo $(( $(($1<<16)) + $(($2<<8)) + $(($3)) ));
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}
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function colorToRGB {
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echo "Red: $(($1>>16&0xff))"
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echo "Green: $(($1>>8&0xff))"
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echo "Blue: $(($1&0xff))"
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}
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```
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#### Example
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RGB Value to color uint32_t
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```shell
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bash$ rgbToColor 155 230 32
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10216992
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bash$
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```
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uint32_t to RGB values
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```shell
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bash$ colorToRGB 10216992
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Red: 155
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Green: 230
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Blue: 32
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bash$
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```
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## Effects
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* **larsonspiral**
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Shows the moving larson scanner eye known form *Battlestar Galactica* and *Knight Rider*. The used effect color can be specified by *color_0*
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* **randomscanner**
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This is the same scanner then the scanner above but uses an alternating color pattern
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* **larsonspiral**
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This is the same scanner then the randomscanner above but uses a spiral pattern
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* **rainbowcycle**
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Shows a cycling rainbown on the LED strip
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* **theaterchase**
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Shows an color chasing LED strip.
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You can specify the color by set *color_0* and *color_1*
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* **fade**
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Fades from effect color_0 to effect_color_1
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* **randomfade**
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Fades thru an alternating color pattern on all pixels with the same color.
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* **randomfade|40**
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Fades thru an alternating color pattern on all pixels with different color.
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* **random**
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Shows random static colors on all pixels differently.
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* **smooth**
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Smooth chainging effect.
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* **plasma**
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The all famous plasma effect known from many 8bit-Demos from the '80s and '90s.
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* **none**
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Stop all effects
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## Effect colors
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You can set to different effect colors
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* *color_0* (default R: 255, G: 0 B: 0)
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* *color_1* (default R: 0, G: 0 B: 255)
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The effect color has to be set after the effect.
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###### Example:
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1. `homie/device_id/strip/effect/set -m "fade"`
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2. `homie/device_id/strip/color_0/set -m "255"`
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3. `homie/device_id/strip/color_1/set -m "10216992"`
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##### color_0
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This color will be used for the following effects:
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* *scanner*
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* *theaterchase*
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* *fade*
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##### color_1
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This color will be used for the following effects:
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* *theaterchase*
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* *fade*
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