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add hsv2rgb; rainbow puke should work now

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true
2025-04-03 14:18:28 -07:00
parent c1d0fef585
commit 3607db3c4c
5 changed files with 337 additions and 15 deletions
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35
fw/HackSpaceCon/src/rgbled.cpp
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@@ -1,6 +1,12 @@
#include <Arduino.h>
#include "rgbled.h"
#include "hsv2rgb.h"
tinyNeoPixel rgb = tinyNeoPixel(RGB_COUNT, PIN_PA1, NEO_GRB, rgbled);
uint8_t rgbp_rainbow(uint8_t init);
@@ -43,9 +49,11 @@ ISR(TCB0_INT_vect)
// rgb program 0: rainbow puke
#define RAINBOW_HUE_INC 50
#define RAINBOW_OFFSET (1536/5)
#define RAINBOW_TIMEOUT 240
#define RAINBOW_HUE_INC 40 // how much to increment the hue every frame
#define RAINBOW_OFFSET (1536/5) // offset between each LED
#define RAINBOW_TIMEOUT 240 // how long to show this program
#define RAINBOW_SAT 0xff // saturation
#define RAINBOW_VAL 0x40 // value (brightness); keep low enough to keep average current down
uint16_t rainbow_hue = 0;
uint16_t rainbow_timeout;
@@ -53,24 +61,33 @@ uint16_t rainbow_timeout;
uint8_t rgbp_rainbow(uint8_t init)
{
uint8_t i;
uint8_t r, g, b;
uint16_t hue;
// set our timer when initializing. otherwise every call is identical
if (init) {
rainbow_timeout = RAINBOW_TIMEOUT;
}
if (--rainbow_timeout) {
hue = rainbow_hue;
// copy stored hue to working hue
hue = rainbow_hue;
for (i = 0; i < RGB_COUNT; i++) {
hue += RAINBOW_OFFSET;
if (hue >= 1536) hue -= 1536;
// each LED will increment its hue
hue += RAINBOW_OFFSET;
// hue wheel is 256*6 large, so bound the value
if (hue >= 1536) hue -= 1536;
// apply color
// TODO
// compute rgb from hue/sat/value
hsv2rgb(hue, RAINBOW_SAT, RAINBOW_VAL, &r, &g, &b);
// apply it to this LED
rgb.setPixelColor(i, r, g, b);
}
// move the hue wheel for the next cycle through the program
// increment stored hue wheel for the next cycle through the program
rainbow_hue += RAINBOW_HUE_INC;
if (rainbow_hue > 1536) rainbow_hue -= 1536;