135 lines
2.7 KiB
Arduino
135 lines
2.7 KiB
Arduino
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/*
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ATtiny 13 WS2812B-LED Fire-Effect Garden Lamp
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Author: dustinbrun
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licensed under CC BY 4.0
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Version 03.2021
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Make sure to Set in the Board Settings:
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Processor-Speed to 9.6 Mhz
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Millis, Tone Support to "No Millis, No Tone"
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After that Press "Burn Bootloader" to make sure that these Settings are applied
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----------------------------- !!!! Configuration can be done in the "config.h file !!!! -----------------------------------------
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*/
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#include "light_ws2812.c"
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#include "light_ws2812.h"
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#include "random_avr.h"
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#include "random_avr.c"
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#include "config.h"
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bool on = true;
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bool was_on = true;
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volatile unsigned long counter = 0;// interrupt needs volatile variable
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struct pix
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{
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uint8_t g;
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uint8_t r;
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uint8_t b;
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};
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pix pixel[PIXEL_NUM];
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ISR(TIMER0_OVF_vect) {
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/*
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Timer Configuration:
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Prescaler 1024, CPU-Speed 9,6MHz = 9600000 Hz
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Interrupt is called with a Frequency of: 9600000Hz/1024/256 = 36,6Hz
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so every --> 0,027s <---
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*/
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counter++;
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}
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void setup()
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{
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random_init(0xabcd); // initialize 16 bit seed
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pinMode(LDR_pin, INPUT);
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pinMode(2, OUTPUT);
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//Interrupt Setup
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cli(); // Clear interrupts, just to make sure
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TCCR0B |= (1 << CS02) | (1 << CS00); // set prescale timer to 1/1024th, set CS02 and CS00 bit in TCCR0B
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TIMSK0 |= 1 << TOIE0; // enable timer overflow interrupt, left shift 1 to TOIE0 and OR with TIMSK
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sei(); //start timer
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}
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void loop()
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{
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if (analogRead(LDR_pin) < on_val && !was_on)
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{
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on = true;
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was_on = true;
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counter = 0;
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}
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if (analogRead(LDR_pin) > off_val && was_on)
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{
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on = false;
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was_on = false;
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counter = 0;
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for (int i = 0; i < PIXEL_NUM; i++)
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{
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pixel[i].r = day_red;
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pixel[i].g = day_green;
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pixel[i].b = day_blue;
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}
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ws2812_setleds((struct cRGB *)pixel, PIXEL_NUM);
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}
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if (counter > max_on_time && on)
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{
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on = false;
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counter = 0;
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for (int i = 0; i < PIXEL_NUM; i++)
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{
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pixel[i].r = timeout_red;
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pixel[i].g = timeout_green;
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pixel[i].b = timeout_blue;
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}
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ws2812_setleds((struct cRGB *)pixel, PIXEL_NUM);
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}
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if (on)
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{
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// Flicker, based on our initial RGB values
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int flicker = random_avr() % indensity;
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int f_red = red - flicker;
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int f_green = green - flicker;
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int f_blue = blue - flicker;
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if (f_red < 0) f_red = 0;
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if (f_green < 0) f_green = 0;
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if (f_blue < 0) f_blue = 0;
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for (int i = 0; i < PIXEL_NUM; i++)
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{
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pixel[i].r = f_red;
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pixel[i].g = f_green;
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pixel[i].b = f_blue;
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}
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ws2812_setleds((struct cRGB *)pixel, PIXEL_NUM);
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delay(400 - random_avr() % d_delay);
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}
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else
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{
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counter = 0;
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}
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}
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