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habe im Netz ein PicoC Skript gefunden, mit dem ich die RGB und Helligkeit steuern kann. Jedoch nicht die weissen LEDs, von meinem RGBW strip. Vielleicht kann jemand mir auf die Sprünge helfen, ich kann absolut nicht programmieren. Vorab Danke. Hier das Skript.
Code:
int nEvents;
int n;
// Send UDP packet to wifi box,
// This function expect a code and a parameter
// The function tells the box what to do (Change color, on, off ...)
// The param tells gives the function some params
int SendUDP(int function, int param) {
int i = 0;
// Send every UDP command 3 times with an interval of 100ms
// This way we are sure that the command reaches the wifi box
do {
STREAM* Socket = stream_create("/dev/udp/[URL="http://192.168.0.27/8899"]192.168.XXX.XXX/[/URL][PORT]",0,0);
if (Socket == NULL) {
printf("Creating UDP socket failed");
stream_close(Socket);
}
// Build the binary string to send
char command[3]={function, param, 0x55 };
stream_write(Socket,command,sizeof(command));
stream_flush(Socket); stream_close(Socket);
i = i + 1;
sleep(100);
} while (i < 3);
return 1;
}
// Gets called with the group ID
// This function will parse the RGB values received from the input
// Using the RGB values we convert them to Hue and Brightness, saturation is not needed
// Since our MiLight LEDS only accept a hue value and a brightness
int SetGroup(int group, float f1) {
char buffer[4];
char sR[4];
char sG[4];
char sB[4];
float red;
float green;
float blue;
float bri;
float r,g,b;
float X, Y, Z, cx, cy;
char input_color[10];
float hue;
float sat;
float milightColorNo;
sprintf(input_color, "%d", (int)f1);
printf("group: %d \n",group);
// The following code parses the RGB color
if (strlen(input_color) == 9) {
sB[0] = input_color[0]; sB[1] = input_color[1]; sB[2] = input_color[2]; sB[3] = '\0';
sG[0] = input_color[3]; sG[1] = input_color[4]; sG[2] = input_color[5]; sG[3] = '\0';
sR[0] = input_color[6]; sR[1] = input_color[7]; sR[2] = input_color[8]; sR[3] = '\0';
}
else if (strlen(input_color) == 8) {
sB[0] = '0'; sB[1] = input_color[0]; sB[2] = input_color[1]; sB[3] = '\0';
sG[0] = input_color[2]; sG[1] = input_color[3]; sG[2] = input_color[4]; sG[3] = '\0';
sR[0] = input_color[5]; sR[1] = input_color[6]; sR[2] = input_color[7]; sR[3] = '\0';
}
else if (strlen(input_color) == 7) {
sB[0] = '0'; sB[1] = '0'; sB[2] = input_color[0]; sB[3] = '\0';
sG[0] = input_color[1]; sG[1] = input_color[2]; sG[2] = input_color[3]; sG[3] = '\0';
sR[0] = input_color[4]; sR[1] = input_color[5]; sR[2] = input_color[6]; sR[3] = '\0';
}
else if (strlen(input_color) == 6) {
sB[0] = '0'; sB[1] = '0'; sB[2] = '0'; sB[3] = '\0';
sG[0] = input_color[0]; sG[1] = input_color[1]; sG[2] = input_color[2]; sG[3] = '\0';
sR[0] = input_color[3]; sR[1] = input_color[4]; sR[2] = input_color[5]; sR[3] = '\0';
}
else if (strlen(input_color) == 5) {
sB[0] = '0'; sB[1] = '0'; sB[2] = '0'; sB[3] = '\0';
sG[0] = '0'; sG[1] = input_color[0]; sG[2] = input_color[1]; sG[3] = '\0';
sR[0] = input_color[2]; sR[1] = input_color[3]; sR[2] = input_color[4]; sR[3] = '\0';
}
else if (strlen(input_color) == 4) {
sB[0] = '0'; sB[1] = '0'; sB[2] = '0'; sB[3] = '\0';
sG[0] = '0'; sG[1] = '0'; sG[2] = input_color[0]; sG[3] = '\0';
sR[0] = input_color[1]; sR[1] = input_color[2]; sR[2] = input_color[3]; sR[3] = '\0';
}
else if (strlen(input_color) == 3) {
sB[0] = '0'; sB[1] = '0'; sB[2] = '0'; sB[3] = '\0';
sG[0] = '0'; sG[1] = '0'; sG[2] = '0'; sG[3] = '\0';
sR[0] = input_color[0]; sR[1] = input_color[1]; sR[2] = input_color[2]; sR[3] = '\0';
}
else if (strlen(input_color) == 2) {
sB[0] = '0'; sB[1] = '0'; sB[2] = '0'; sB[3] = '\0';
sG[0] = '0'; sG[1] = '0'; sG[2] = '0'; sG[3] = '\0';
sR[0] = '0'; sR[1] = input_color[0]; sR[2] = input_color[1]; sR[3] = '\0';
}
else if (strlen(input_color) == 1) {
sB[0] = '0'; sB[1] = '0'; sB[2] = '0'; sB[3] = '\0';
sG[0] = '0'; sG[1] = '0'; sG[2] = '0'; sG[3] = '\0';
sR[0] = '0'; sR[1] = '0'; sR[2] = input_color[0]; sR[3] = '\0';
}
// Convert the strings back to int
red = atoi(sR);
green = atoi(sG);
blue = atoi(sB);
printf("red: %d \n",red);
printf("green: %d \n",green);
printf("blue: %d \n",blue);
// Clear older hue and sat values
hue = 0;
sat = 0;
// Convert based on RGB levels to HUE and Saturation
if ((red >= green) && (green >= blue)) {
hue = 60*(green-blue)/(red-blue);
sat = (red - blue) / red;
} else if ((green > red) && (red >= blue)) {
hue = 60*(2 - (red-blue)/(green-blue));
sat = (green - blue) / green;
} else if ((green >= blue) && (blue > red)) {
hue = 60*(2 + (blue-red)/(green-red));
sat = (green - red) / green;
} else if ((blue > green) && (green > red)) {
hue = 60*(4 - (green-red)/(blue-red));
sat = (blue - red) / blue;
} else if ((blue > red) && (red >= green)) {
hue = 60*(4 + (red-green)/(blue-green));
sat = (blue - green) / blue;
} else if ((red >= blue) && (blue > green)) {
hue = 60*(6 - (blue-green)/(red-green));
sat = (red - green) / red;
}
sat = sat * 255;
// set for safety again saturated at white
if (blue == 0 && green == 0 && red == 0) {
sat = 0;
}
// First map the 360 degrees value to a value of 0-255
milightColorNo =(176-(hue/360.0*255.0));
if ( milightColorNo < 0 ) {
milightColorNo = 256+ milightColorNo;
}
// Convert the saturation to the brightness
bri = sqrt(pow(red, 2) + pow(green, 2) + pow(blue, 2));
bri = bri * 2;
if (bri > 255) {
bri = 255;
}
// Falls nur 1 Farbe ein Thema, Helligkeit=Farbe
if (red == 0 && green == 0) {
bri = (blue * 255)/100;
}
if (blue == 0 && green == 0)
bri = (red * 255)/100;
if (red == 0 && blue == 0)
bri = (green * 255)/100;
// Milight only supports brightness levels from 2-27, so scale 0-255 to 0-27
bri=bri/255.0*27.0;
if ( bri < 3) {
bri=2;
}
// If all colors are the same level we get white, so set de RGB strip into white mode
if (red > 0 || green > 0 || blue > 0 ) {
if (red == green && green == blue && blue == red ) {
if (group == 1) {
// Set white mode for group 1
SendUDP( 0xC5, 0x00 );
}
if (group == 2) {
// Set white mode for group 2
SendUDP( 0xC7, 0x00 );
}
if (group == 3) {
// Set white mode for group 3
SendUDP( 0xC9, 0x00 );
}
if (group == 4) {
// Set white mode for group 4
SendUDP( 0xCB, 0x00 );
}
// Set brightness (Will be executed only for the group selected above)
SendUDP( 0x4E, (int) bri );
} else {
if (group == 1) {
// Group 1 on and if already on, select it
SendUDP( 0x45, 0x00 );
}
if (group == 2) {
// Group 2 on and if already on, select it
SendUDP( 0x47, 0x00 );
}
if (group == 3) {
// Group 3 on and if already on, select it
SendUDP( 0x49, 0x00 );
}
if (group == 4) {
// Group 4 on and if already on, select it
SendUDP( 0x4B, 0x00 );
}
// Set hue color (Will be executed only for the group selected above)
SendUDP( 0x40, milightColorNo );
// Set brightness (Will be executed only for the group selected above)
SendUDP( 0x4E, (int) bri );
}
} else {
if (group == 1) {
// Set group 1 off
SendUDP( 0x46, 0x00 );
}
if (group == 2) {
// Set group 2 off
SendUDP( 0x48, 0x00 );
}
if (group == 3) {
// Set group 3 off
SendUDP( 0x4A, 0x00 );
}
if (group == 4) {
// Set group 4 off
SendUDP( 0x4C, 0x00 );
}
}
return 1;
}
// Main Loop
while (1==1) {
nEvents = getinputevent();
//printf("this event: %d", nEvents);
// Test bitwise if input 4 is changed (00001000)
if (nEvents & 8) {
SetGroup(1, getinput(0));
}
// Test bitwise if input 5 is changed (00010000)
if (nEvents & 16) {
SetGroup(2, getinput(1));
}
// Test bitwise if input AI3 is changed (0x20) = 32
if (nEvents & 32) {
SetGroup(3, getinput(2));
}
// Test bitwise if input AI3 is changed (0x20) = 32
if (nEvents & 64) {
SetGroup(4, getinput(3));
}
sleep(500);
}
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