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Address #1689 by using a formula to define the breathing curve (#1692)

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* Address #1689 by using a formula to define the breathing curve and exposing defines to control the shape of the curve.

* Tweak the behavior of breathing for clueboard
This commit is contained in:
skullydazed 2017-10-17 16:47:49 -07:00 committed by GitHub
parent d3fe6a0588
commit ad49db8cd2
5 changed files with 22 additions and 3 deletions
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6
docs/feature_rgblight.md
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@ -49,8 +49,10 @@ If you have `#define RGBLIGHT_ANIMATIONS` in your `config.h` you will have a num
| Option | Default Value | Description |
|--------|---------------|-------------|
| `RGBLIGHT_ANIMATIONS` | | `#define` this to enable animation modes. |
| `RGBLIGHT_EFFECT_SNAKE_LENGTH` | 4 | The number of LEDs to light up for the "snake" mode. |
| `RGBLIGHT_EFFECT_KNIGHT_LENGTH` | 3 | The number of LEDs to light up for the "knight" mode. |
| `RGBLIGHT_EFFECT_BREATHE_CENTER | 1.85 | Used to calculate the curve for the breathing animation. Valid values 1.0-2.7. |
| `RGBLIGHT_EFFECT_BREATHE_MAX | 255 | The maximum brightness for the breathing mode. Valid values 1-255. |
| `RGBLIGHT_EFFECT_SNAKE_LENGTH` | 4 | The number of LEDs to light up for the "snake" animation. |
| `RGBLIGHT_EFFECT_KNIGHT_LENGTH` | 3 | The number of LEDs to light up for the "knight" animation. |
| `RGBLIGHT_EFFECT_KNIGHT_OFFSET` | 0 | Start the knight animation this many LEDs from the start of the strip. |
| `RGBLIGHT_EFFECT_KNIGHT_LED_NUM` | RGBLED_NUM | The number of LEDs to have the "knight" animation travel. |
| `RGBLIGHT_EFFECT_CHRISTMAS_INTERVAL` | 1000 | How long to wait between light changes for the "christmas" animation. Specified in ms. |

2
keyboards/clueboard_66/rev2/config.h
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@ -36,6 +36,8 @@
#define RGBLIGHT_VAL_STEP 17
#define RGBLIGHT_ANIMATIONS
#define RGBLIGHT_EFFECT_BREATHE_CENTER 1
#define RGBLIGHT_EFFECT_BREATHE_MAX 200
#define RGBLIGHT_EFFECT_CHRISTMAS_INTERVAL 666*2
#define RGBLIGHT_EFFECT_CHRISTMAS_STEP 1
#define RGBLIGHT_EFFECT_KNIGHT_LENGTH 3 // How many LEDs wide to light up

2
keyboards/clueboard_66/rev3/config.h
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@ -36,6 +36,8 @@
#define RGBLIGHT_VAL_STEP 17
#define RGBLIGHT_ANIMATIONS
#define RGBLIGHT_EFFECT_BREATHE_CENTER 1
#define RGBLIGHT_EFFECT_BREATHE_MAX 200
#define RGBLIGHT_EFFECT_CHRISTMAS_INTERVAL 666*2
#define RGBLIGHT_EFFECT_CHRISTMAS_STEP 1
#define RGBLIGHT_EFFECT_KNIGHT_LENGTH 3 // How many LEDs wide to light up

7
quantum/rgblight.c
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@ -13,6 +13,7 @@
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <math.h>
#include <avr/eeprom.h>
#include <avr/interrupt.h>
#include <util/delay.h>
@ -465,13 +466,17 @@ void rgblight_task(void) {
void rgblight_effect_breathing(uint8_t interval) {
static uint8_t pos = 0;
static uint16_t last_timer = 0;
float val;
if (timer_elapsed(last_timer) < pgm_read_byte(&RGBLED_BREATHING_INTERVALS[interval])) {
return;
}
last_timer = timer_read();
rgblight_sethsv_noeeprom(rgblight_config.hue, rgblight_config.sat, pgm_read_byte(&LED_BREATHING_TABLE[pos]));
// http://sean.voisen.org/blog/2011/10/breathing-led-with-arduino/
val = (exp(sin((pos/255.0)*M_PI)) - RGBLIGHT_EFFECT_BREATHE_CENTER/M_E)*(RGBLIGHT_EFFECT_BREATHE_MAX/(M_E-1/M_E));
rgblight_sethsv_noeeprom(rgblight_config.hue, rgblight_config.sat, val);
pos = (pos + 1) % 256;
}
void rgblight_effect_rainbow_mood(uint8_t interval) {

8
quantum/rgblight.h
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@ -22,6 +22,14 @@
#define RGBLIGHT_MODES 1
#endif
#ifndef RGBLIGHT_EFFECT_BREATHE_CENTER
#define RGBLIGHT_EFFECT_BREATHE_CENTER 1.85 // 1-2.7
#endif
#ifndef RGBLIGHT_EFFECT_BREATHE_MAX
#define RGBLIGHT_EFFECT_BREATHE_MAX 255 // 0-255
#endif
#ifndef RGBLIGHT_EFFECT_SNAKE_LENGTH
#define RGBLIGHT_EFFECT_SNAKE_LENGTH 4
#endif