52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
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/*
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* ATTENTION: This example uses the old v1.0 interface.
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*
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* Light_WS2812 library example - Chained Writes
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*
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* This example shows how to use multiple calls without issuing a reset
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* in between, allowing to send the same buffer to the string
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* multiple times. This technique can be useful to conserve memory
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* or to calculate LED colors on-the-fly.
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*
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* Please make sure to set your configuration in "WS2812_config.h" first
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*
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*/
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#include <util/delay.h>
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include "light_ws2812.h"
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struct cRGB led[2];
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int main(void)
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{
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uint8_t pos=0;
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uint8_t direction=1;
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uint8_t i;
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#ifdef __AVR_ATtiny10__
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CCP=0xD8; // configuration change protection, write signature
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CLKPSR=0; // set cpu clock prescaler =1 (8Mhz) (attiny 4/5/9/10)
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#endif
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led[0].r=16;led[0].g=00;led[0].b=00; // LED 0 is red
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led[1].r=16;led[1].g=16;led[1].b=16; // LED 1 is White
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while(1)
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{
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for (i=0; i<pos; i++)
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ws2812_sendarray((uint8_t *)&led[0],3); // Repeatedly send "red" to the led string.
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// No more than 1-2<>s should pass between calls
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// to avoid issuing a reset condition.
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for (i=0; i<(16-pos); i++)
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ws2812_sendarray((uint8_t *)&led[1],3); // white
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_delay_ms(50); // Issue reset and wait for 50 ms.
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pos+=direction;
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if ((pos==16)||(pos==0)) direction=-direction;
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}
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}
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