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#include <SPI.h> | |
#include <Ethernet.h> | |
#include <EthernetUdp.h> | |
byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED}; | |
IPAddress ip(192, 168, 0, 20); | |
unsigned int localPort = 8888; | |
EthernetUDP Udp; | |
unsigned char packetBuffer[UDP_TX_PACKET_MAX_SIZE]; | |
const byte curve[] = { | |
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01, | |
0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x02,0x02,0x02,0x02,0x02,0x02,0x02, | |
0x02,0x02,0x03,0x03,0x03,0x03,0x03,0x03,0x04,0x04,0x04,0x04,0x04,0x05,0x05,0x05, | |
0x05,0x06,0x06,0x06,0x07,0x07,0x07,0x08,0x08,0x08,0x09,0x09,0x0A,0x0A,0x0B,0x0B, | |
0x0C,0x0C,0x0D,0x0D,0x0E,0x0F,0x0F,0x10,0x11,0x11,0x12,0x13,0x14,0x15,0x16,0x17, | |
0x18,0x19,0x1A,0x1B,0x1C,0x1D,0x1F,0x20,0x21,0x23,0x24,0x26,0x27,0x29,0x2B,0x2C, | |
0x2E,0x30,0x32,0x34,0x36,0x38,0x3A,0x3C,0x3E,0x40,0x43,0x45,0x47,0x4A,0x4C,0x4F, | |
0x51,0x54,0x57,0x59,0x5C,0x5F,0x62,0x64,0x67,0x6A,0x6D,0x70,0x73,0x76,0x79,0x7C, | |
0x7F,0x82,0x85,0x88,0x8B,0x8E,0x91,0x94,0x97,0x9A,0x9C,0x9F,0xA2,0xA5,0xA7,0xAA, | |
0xAD,0xAF,0xB2,0xB4,0xB7,0xB9,0xBB,0xBE,0xC0,0xC2,0xC4,0xC6,0xC8,0xCA,0xCC,0xCE, | |
0xD0,0xD2,0xD3,0xD5,0xD7,0xD8,0xDA,0xDB,0xDD,0xDE,0xDF,0xE1,0xE2,0xE3,0xE4,0xE5, | |
0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xED,0xEE,0xEF,0xEF,0xF0,0xF1,0xF1,0xF2, | |
0xF2,0xF3,0xF3,0xF4,0xF4,0xF5,0xF5,0xF6,0xF6,0xF6,0xF7,0xF7,0xF7,0xF8,0xF8,0xF8, | |
0xF9,0xF9,0xF9,0xF9,0xFA,0xFA,0xFA,0xFA,0xFA,0xFB,0xFB,0xFB,0xFB,0xFB,0xFB,0xFC, | |
0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFD,0xFD,0xFD,0xFD,0xFD,0xFD,0xFD,0xFD, | |
0xFD,0xFD,0xFD,0xFD,0xFD,0xFD,0xFD,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFF,0xFF | |
}; | |
byte r = 0; | |
byte g = 0; | |
byte b = 0; | |
float brightness = 1; | |
void setup(){ | |
Ethernet.begin(mac, ip); | |
Udp.begin(localPort); | |
pinMode(3, OUTPUT); | |
pinMode(6, OUTPUT); | |
pinMode(9, OUTPUT); | |
} | |
void loop(){ | |
int packetSize = Udp.parsePacket(); | |
if(Udp.available()){ | |
Udp.read(packetBuffer, UDP_TX_PACKET_MAX_SIZE); | |
if(packetSize == 5 && packetBuffer[0] == '#'){ | |
r = packetBuffer[1]; | |
g = packetBuffer[2]; | |
b = packetBuffer[3]; | |
updateColor(); | |
}else if(packetSize == 3 && packetBuffer[0] == '%'){ | |
brightness = packetBuffer[1] / 255.0; | |
updateColor(); | |
} | |
} | |
} | |
void updateColor(){ | |
analogWrite(3, curve[(byte)floor(r * brightness)]); | |
analogWrite(6, curve[(byte)floor(g * brightness)]); | |
analogWrite(9, curve[(byte)floor(b * brightness)]); | |
} |
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