30 lines
500 B
C++
30 lines
500 B
C++
#include <SPI.h>
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#include "ws2801.h"
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uint8_t message[3 * NUM_MODULES];
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void ws2801_init(void)
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{
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SPI.begin();
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}
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void ws2801_set_colour(uint32_t module, uint8_t red, uint8_t green, uint8_t blue)
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{
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message[3*module + 0] = red;
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message[3*module + 1] = blue;
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message[3*module + 2] = green;
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}
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void ws2801_send_update(void)
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{
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SPI.beginTransaction(SPISettings(1000000, MSBFIRST, SPI_MODE0));
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for(uint32_t i = 0; i < 3*NUM_MODULES; i++) {
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SPI.transfer(message[i]);
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}
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SPI.endTransaction();
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}
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