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led_clock-old
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show time hours and minutes

This commit is contained in:
King Kévin 2016-02-23 21:52:00 +01:00
parent 02658f2c45
commit 5379d653c9
1 changed files with 49 additions and 13 deletions
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62
main.c
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@ -114,25 +114,61 @@ static void clock_hours(void)
}
}
/* set hour progress on clock LEDs */
/* set hour progress on clock LEDs
* the hour/time time indication are full arcs, not only position
* whatever arc is smaller is displayed first
* green is for minutes, blur for hours */
static void clock_hour(uint32_t time)
{
time %= ticks_midday; // the LED strip can only display 12 hours
uint32_t led_hour = (WS2812B_LEDS*(255*(uint64_t)(time)))/ticks_midday; // scale to LED brightnesses
printf("led hour: %lu, brightness: %lu\n", led_hour/255, led_hour%255);
if (led_hour>=WS2812B_LEDS*255) { // a calculation error occurred
uint32_t led_hour = (WS2812B_LEDS*(255*(uint64_t)(time%ticks_midday)))/ticks_midday; // scale to LED brightnesses for hours
uint32_t led_minute = (WS2812B_LEDS*(255*(uint64_t)(time%ticks_hour)))/ticks_hour; // scale to LED brightnesses for minutes
if (led_hour>=WS2812B_LEDS*255 || led_minute>=WS2812B_LEDS*255) { // a calculation error occurred
return;
}
for (uint16_t led=0; led<WS2812B_LEDS && led_hour>0; led++) {
clock_leds[led*3+0] = 0;
clock_leds[led*3+1] = 0;
if (led_hour>=0xff) { // full hours
clock_leds[led*3+2] = 0xff;
} else { // running hours
clock_leds[led*3+2] = led_hour;
// set LEDs
for (uint16_t led=0; led<WS2812B_LEDS; led++) {
// determine order of hour/minute display
if (led_hour>led_minute) {
clock_leds[led*3+0] = 0;
if (led_minute>=0xff) { // full minutes
clock_leds[led*3+1] = 0xff;
} else { // running minutes
clock_leds[led*3+1] = led_minute;
}
led_minute -= clock_leds[led*3+1];
if (led_minute!=0) {
clock_leds[led*3+2] = 0;
led_hour -= 0xff;
} else {
if (led_hour>=0xff) { // full hours
clock_leds[led*3+2] = 0xff;
} else { // running hours
clock_leds[led*3+2] = led_hour;
}
led_hour -= clock_leds[led*3+2];
}
} else {
clock_leds[led*3+0] = 0;
if (led_hour!=0) {
clock_leds[led*3+1] = 0;
led_minute -= 0xff;
} else {
if (led_minute>=0xff) { // full minutes
clock_leds[led*3+1] = 0xff;
} else { // running minutes
clock_leds[led*3+1] = led_minute;
}
led_minute -= clock_leds[led*3+1];
}
if (led_hour>=0xff) { // full hours
clock_leds[led*3+2] = 0xff;
} else { // running hours
clock_leds[led*3+2] = led_hour;
}
led_hour -= clock_leds[led*3+2];
}
led_hour -= clock_leds[led*3+2];
}
}
}
/* set the LEDs */