Ported musiclight to RGBW LEDs

Not all scripts are ported yet...
This commit is contained in:
Thomas Kolb 2018-06-24 22:23:39 +02:00
parent 57b2fa6cbc
commit 0a76acd85b
10 changed files with 159 additions and 85 deletions

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@ -6,8 +6,8 @@ CFLAGS+=-O2 -Wall -march=native -pedantic -std=c99 -D_POSIX_C_SOURCE=20120607L -
LIBS=-lm -lpthread -lrt $(LUA_LIBS)
TARGET=musiclight2
SOURCE=main.c fft.c utils.c ws2801.c lua_utils.c lua_wrappers.c lut.c
DEPS=config.h fft.h utils.h ws2801.h lua_utils.h lua_wrappers.h lut.h
SOURCE=main.c fft.c utils.c sk6812.c lua_utils.c lua_wrappers.c lut.c
DEPS=config.h fft.h utils.h sk6812.h lua_utils.h lua_wrappers.h lut.h
OBJ=$(patsubst %.c, %.o, $(SOURCE))

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@ -1,7 +1,7 @@
WS2801_HOST = "192.168.2.136"
WS2801_HOST = "zybot"
WS2801_PORT = 2703
NUM_MODULES = 128
CENTER_MODULE = 64
NUM_MODULES = 300
CENTER_MODULE = 150
GAMMA = 2.0

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@ -1,13 +1,14 @@
COOLDOWN_FACTOR = 0.9995
COOLDOWN_FACTOR = 0.9998
OVERDRIVE = 1.70
EXPONENT = 1.5
W_EXPONENT = 2.2
M = 1.7 -- mass
M = 1.0--1.7 -- mass
D = 1 -- spring strength
DAMPING = {} -- filled in init()
num_modules = 128
center_module = 64
num_modules = 300
center_module = 150
num_masses = math.floor(num_modules/2)
excitement_pos = 1
@ -16,28 +17,34 @@ excitement_pos = 1
maxRedEnergy = 1
maxGreenEnergy = 1
maxBlueEnergy = 1
maxWhiteEnergy = 1
-- spring-mass-grid values
pos_r = {}
pos_g = {}
pos_b = {}
pos_w = {}
vel_r = {}
vel_g = {}
vel_b = {}
vel_w = {}
acc_r = {}
acc_g = {}
acc_b = {}
acc_w = {}
-- output color buffers
red = {}
green = {}
blue = {}
white = {}
r_tmp = {}
g_tmp = {}
b_tmp = {}
w_tmp = {}
function limit(val)
if val > 1 then
@ -52,9 +59,12 @@ end
function periodic()
local redEnergy = get_energy_in_band(0, 400);
local greenEnergy = get_energy_in_band(400, 4000);
local blueEnergy = get_energy_in_band(4000, 22000);
local blueEnergy = get_energy_in_band(4000, 12000);
local whiteEnergy = get_energy_in_band(12000, 22000);
local centerIndex = 2 * center_module + 1;
print(maxRedEnergy .. "\t" .. maxGreenEnergy .. "\t" .. maxBlueEnergy .. "\t" .. maxWhiteEnergy)
maxRedEnergy = maxRedEnergy * COOLDOWN_FACTOR
if redEnergy > maxRedEnergy then
maxRedEnergy = redEnergy
@ -70,6 +80,11 @@ function periodic()
maxBlueEnergy = blueEnergy
end
maxWhiteEnergy = maxWhiteEnergy * COOLDOWN_FACTOR
if whiteEnergy > maxWhiteEnergy then
maxWhiteEnergy = whiteEnergy
end
-- update the spring-mass string
-- the outside masses are special, as they are auto-returned to 0 position
@ -77,16 +92,19 @@ function periodic()
--acc_r[1] = (-pos_r[1] + (pos_r[2] - pos_r[1])) * D / M
--acc_g[1] = (-pos_g[1] + (pos_g[2] - pos_g[1])) * D / M
--acc_b[1] = (-pos_b[1] + (pos_b[2] - pos_b[1])) * D / M
--acc_w[1] = (-pos_w[1] + (pos_w[2] - pos_w[1])) * D / M
acc_r[num_masses] = (-pos_r[num_masses] + (pos_r[num_masses-1] - pos_r[num_masses])) * D / M
acc_g[num_masses] = (-pos_g[num_masses] + (pos_g[num_masses-1] - pos_g[num_masses])) * D / M
acc_b[num_masses] = (-pos_b[num_masses] + (pos_b[num_masses-1] - pos_b[num_masses])) * D / M
acc_w[num_masses] = (-pos_w[num_masses] + (pos_w[num_masses-1] - pos_w[num_masses])) * D / M
-- inside masses are only influenced by their neighbors
for i = 2,num_masses-1 do
acc_r[i] = (pos_r[i-1] + pos_r[i+1] - 2 * pos_r[i]) * D / M
acc_g[i] = (pos_g[i-1] + pos_g[i+1] - 2 * pos_g[i]) * D / M
acc_b[i] = (pos_b[i-1] + pos_b[i+1] - 2 * pos_b[i]) * D / M
acc_w[i] = (pos_w[i-1] + pos_w[i+1] - 2 * pos_w[i]) * D / M
end
-- update velocity and position
@ -94,10 +112,12 @@ function periodic()
vel_r[i] = DAMPING[i] * (vel_r[i] + acc_r[i])
vel_g[i] = DAMPING[i] * (vel_g[i] + acc_g[i])
vel_b[i] = DAMPING[i] * (vel_b[i] + acc_b[i])
vel_w[i] = DAMPING[i] * (vel_w[i] + acc_w[i])
pos_r[i] = pos_r[i] + vel_r[i]
pos_g[i] = pos_g[i] + vel_g[i]
pos_b[i] = pos_b[i] + vel_b[i]
pos_w[i] = pos_w[i] + vel_w[i]
end
-- set the new position for the center module
@ -108,23 +128,30 @@ function periodic()
newGreen = greenEnergy / maxGreenEnergy
pos_g[excitement_pos] = newGreen
vel_b[excitement_pos] = 0
acc_b[excitement_pos] = 0
vel_g[excitement_pos] = 0
acc_g[excitement_pos] = 0
newBlue = blueEnergy / maxBlueEnergy
pos_b[excitement_pos] = newBlue
vel_b[excitement_pos] = 0
acc_b[excitement_pos] = 0
newWhite = whiteEnergy / maxWhiteEnergy
pos_w[excitement_pos] = newWhite
vel_w[excitement_pos] = 0
acc_w[excitement_pos] = 0
-- map to LED modules
for i = 1,num_masses do
r_tmp[i] = pos_r[i]
g_tmp[i] = pos_g[i]
b_tmp[i] = pos_b[i]
w_tmp[i] = pos_w[i]
r_tmp[num_modules-i+1] = pos_r[i]
g_tmp[num_modules-i+1] = pos_g[i]
b_tmp[num_modules-i+1] = pos_b[i]
w_tmp[num_modules-i+1] = pos_w[i]
--print(i, pos_r[i])
end
@ -134,10 +161,11 @@ function periodic()
red[i] = limit(OVERDRIVE * math.pow(r_tmp[i], EXPONENT))
green[i] = limit(OVERDRIVE * math.pow(g_tmp[i], EXPONENT))
blue[i] = limit(OVERDRIVE * math.pow(b_tmp[i], EXPONENT))
white[i] = limit(OVERDRIVE * math.pow(w_tmp[i], W_EXPONENT))
end
-- return the 3 color arrays
return red, green, blue
return red, green, blue, white
end
function init(nmod, cmod)
@ -151,22 +179,26 @@ function init(nmod, cmod)
red[i] = 0
green[i] = 0
blue[i] = 0
white[i] = 0
end
for i = 1,num_masses do
pos_r[i] = 0
pos_g[i] = 0
pos_b[i] = 0
pos_w[i] = 0
vel_r[i] = 0
vel_g[i] = 0
vel_b[i] = 0
vel_w[i] = 0
acc_r[i] = 0
acc_g[i] = 0
acc_b[i] = 0
acc_w[i] = 0
DAMPING[i] = 1 - 0.08 * math.pow(math.abs((i - excitement_pos) / num_masses), 2)
DAMPING[i] = 1 - 0.06 * math.pow(math.abs((i - excitement_pos) / num_masses), 2)
end
-- don't use fading

48
main.c
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@ -26,7 +26,7 @@
#include "fft.h"
#include "utils.h"
#include "ws2801.h"
#include "sk6812.h"
#include "config.h"
@ -74,16 +74,20 @@ void* fft_thread(void *param) {
memcpy(block, buffer, BLOCK_LEN * sizeof(sample));
apply_hanning(block);
fft_transform(block, fftOutReal, fftOutImag);
complex_to_absolute(fftOutReal, fftOutImag, tmpFFT);
tmpRMS = 0;
for(i = 0; i < BLOCK_LEN; i++) {
tmpRMS += buffer[i]*buffer[i];
}
tmpRMS = sqrt(tmpRMS/BLOCK_LEN);
if(tmpRMS == 0) {
continue;
}
apply_hanning(block);
fft_transform(block, fftOutReal, fftOutImag);
complex_to_absolute(fftOutReal, fftOutImag, tmpFFT);
// --- SAFE SECTION ---
sem_wait(&fftSemaphore);
@ -130,11 +134,12 @@ int main(int argc, char **argv) {
pthread_t fftThread;
int active = 1;
int frame = 0;
//int frame = 0;
double *red;
double *green;
double *blue;
double *white;
int useFading, fadeStep;
@ -192,6 +197,7 @@ int main(int argc, char **argv) {
red = malloc(num_modules * sizeof(double));
green = malloc(num_modules * sizeof(double));
blue = malloc(num_modules * sizeof(double));
white = malloc(num_modules * sizeof(double));
// load and initialize the script
if(luaL_loadfile(L, argv[1])) {
@ -214,13 +220,13 @@ int main(int argc, char **argv) {
fadeStep = lua_tointeger(L, -1);
useFading = fadeStep > 0;
if(useFading) {
ws2801_set_fadestep(fadeStep);
sk6812_set_fadestep(fadeStep);
printf("Fading enabled with fadestep %i.\n", fadeStep);
}
// initialize the WS2801 library
printf("Connecting to %s:%i\n", host, port);
ws2801_init(host, port);
sk6812_init(host, port);
// create semaphores
sem_init(&fftSemaphore, 0, 1);
@ -232,32 +238,35 @@ int main(int argc, char **argv) {
if(active) {
// call the periodic() function from LUA
lua_getglobal(L, "periodic");
if(lua_pcall(L, 0, 3, 0)) { // no arguments, 3 return values
if(lua_pcall(L, 0, 4, 0)) { // no arguments, 4 return values
lua_showerror(L, "lua_pcall(periodic) failed.");
}
// read the return values (reverse order, as lua uses a stack)
lua_readdoublearray(L, white, num_modules);
lua_readdoublearray(L, blue, num_modules);
lua_readdoublearray(L, green, num_modules);
lua_readdoublearray(L, red, num_modules);
if((++frame & 1) == 0) {
/*if((++frame & 1) == 0)*/ {
if(useFading) {
for(i = 0; i < num_modules; i++) {
ws2801_fade_color(i,
sk6812_fade_color(i,
255 * gamma_correct(red[i], gamma),
255 * gamma_correct(green[i], gamma),
255 * gamma_correct(blue[i], gamma));
255 * gamma_correct(blue[i], gamma),
255 * gamma_correct(white[i], gamma));
}
ws2801_commit();
sk6812_commit();
} else {
for(i = 0; i < num_modules; i++) {
ws2801_set_color(i,
sk6812_set_color(i,
255 * gamma_correct(red[i], gamma),
255 * gamma_correct(green[i], gamma),
255 * gamma_correct(blue[i], gamma));
255 * gamma_correct(blue[i], gamma),
255 * gamma_correct(white[i], gamma));
}
ws2801_commit();
sk6812_commit();
}
}
@ -265,9 +274,9 @@ int main(int argc, char **argv) {
printf("Idle for 1 second -> stopping updates.\n");
for(i = 0; i < num_modules; i++) {
ws2801_fade_color(i, 20, 20, 20);
sk6812_fade_color(i, 0, 0, 0, 20);
}
ws2801_commit();
sk6812_commit();
active = 0;
}
@ -280,12 +289,13 @@ int main(int argc, char **argv) {
sleep_until(nextFrame);
}
ws2801_shutdown();
sk6812_shutdown();
// free arrays
free(red);
free(green);
free(blue);
free(white);
pthread_join(fftThread, NULL);

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@ -2,12 +2,12 @@ COOLDOWN_FACTOR = 0.9995
OVERDRIVE = 1.50
EXPONENT = 1.5
M = 1.7 -- mass
M = 1.3--1.7 -- mass
D = 1 -- spring strength
DAMPING = {} -- filled in init()
num_modules = 128
center_module = 64
num_modules = 300
center_module = 150
num_masses = math.floor(num_modules/2)
excitement_pos = math.floor(center_module/2)
@ -16,28 +16,34 @@ excitement_pos = math.floor(center_module/2)
maxRedEnergy = 1
maxGreenEnergy = 1
maxBlueEnergy = 1
maxWhiteEnergy = 1
-- spring-mass-grid values
pos_r = {}
pos_g = {}
pos_b = {}
pos_w = {}
vel_r = {}
vel_g = {}
vel_b = {}
vel_w = {}
acc_r = {}
acc_g = {}
acc_b = {}
acc_w = {}
-- output color buffers
red = {}
green = {}
blue = {}
white = {}
r_tmp = {}
g_tmp = {}
b_tmp = {}
w_tmp = {}
function limit(val)
if val > 1 then
@ -52,7 +58,8 @@ end
function periodic()
local redEnergy = get_energy_in_band(0, 400);
local greenEnergy = get_energy_in_band(400, 4000);
local blueEnergy = get_energy_in_band(4000, 22000);
local blueEnergy = get_energy_in_band(4000, 12000);
local whiteEnergy = get_energy_in_band(12000, 22000);
local centerIndex = 2 * center_module + 1;
maxRedEnergy = maxRedEnergy * COOLDOWN_FACTOR
@ -70,6 +77,11 @@ function periodic()
maxBlueEnergy = blueEnergy
end
maxWhiteEnergy = maxWhiteEnergy * COOLDOWN_FACTOR
if whiteEnergy > maxWhiteEnergy then
maxWhiteEnergy = whiteEnergy
end
-- update the spring-mass string
-- the outside masses are special, as they are auto-returned to 0 position
@ -77,16 +89,19 @@ function periodic()
acc_r[1] = (-pos_r[1] + (pos_r[2] - pos_r[1])) * D / M
acc_g[1] = (-pos_g[1] + (pos_g[2] - pos_g[1])) * D / M
acc_b[1] = (-pos_b[1] + (pos_b[2] - pos_b[1])) * D / M
acc_w[1] = (-pos_w[1] + (pos_w[2] - pos_w[1])) * D / M
acc_r[num_masses] = (-pos_r[num_masses] + (pos_r[num_masses-1] - pos_r[num_masses])) * D / M
acc_g[num_masses] = (-pos_g[num_masses] + (pos_g[num_masses-1] - pos_g[num_masses])) * D / M
acc_b[num_masses] = (-pos_b[num_masses] + (pos_b[num_masses-1] - pos_b[num_masses])) * D / M
acc_w[num_masses] = (-pos_w[num_masses] + (pos_w[num_masses-1] - pos_w[num_masses])) * D / M
-- inside masses are only influenced by their neighbors
for i = 2,num_masses-1 do
acc_r[i] = (pos_r[i-1] + pos_r[i+1] - 2 * pos_r[i]) * D / M
acc_g[i] = (pos_g[i-1] + pos_g[i+1] - 2 * pos_g[i]) * D / M
acc_b[i] = (pos_b[i-1] + pos_b[i+1] - 2 * pos_b[i]) * D / M
acc_w[i] = (pos_w[i-1] + pos_w[i+1] - 2 * pos_w[i]) * D / M
end
-- update velocity and position
@ -94,10 +109,12 @@ function periodic()
vel_r[i] = DAMPING[i] * (vel_r[i] + acc_r[i])
vel_g[i] = DAMPING[i] * (vel_g[i] + acc_g[i])
vel_b[i] = DAMPING[i] * (vel_b[i] + acc_b[i])
vel_w[i] = DAMPING[i] * (vel_w[i] + acc_w[i])
pos_r[i] = pos_r[i] + vel_r[i]
pos_g[i] = pos_g[i] + vel_g[i]
pos_b[i] = pos_b[i] + vel_b[i]
pos_w[i] = pos_w[i] + vel_w[i]
end
-- set the new position for the center module
@ -108,23 +125,30 @@ function periodic()
newGreen = greenEnergy / maxGreenEnergy
pos_g[excitement_pos] = newGreen
vel_b[excitement_pos] = 0
acc_b[excitement_pos] = 0
vel_g[excitement_pos] = 0
acc_g[excitement_pos] = 0
newBlue = blueEnergy / maxBlueEnergy
pos_b[excitement_pos] = newBlue
vel_b[excitement_pos] = 0
acc_b[excitement_pos] = 0
newWhite = whiteEnergy / maxWhiteEnergy
pos_w[excitement_pos] = newWhite
vel_w[excitement_pos] = 0
acc_w[excitement_pos] = 0
-- map to LED modules
for i = 1,num_masses do
r_tmp[i] = pos_r[i]
g_tmp[i] = pos_g[i]
b_tmp[i] = pos_b[i]
w_tmp[i] = pos_w[i]
r_tmp[num_modules-i+1] = pos_r[i]
g_tmp[num_modules-i+1] = pos_g[i]
b_tmp[num_modules-i+1] = pos_b[i]
w_tmp[num_modules-i+1] = pos_w[i]
--print(i, pos_r[i])
end
@ -134,10 +158,11 @@ function periodic()
red[i] = limit(OVERDRIVE * math.pow(r_tmp[i], EXPONENT))
green[i] = limit(OVERDRIVE * math.pow(g_tmp[i], EXPONENT))
blue[i] = limit(OVERDRIVE * math.pow(b_tmp[i], EXPONENT))
white[i] = limit(OVERDRIVE * math.pow(w_tmp[i], EXPONENT))
end
-- return the 3 color arrays
return red, green, blue
return red, green, blue, white
end
function init(nmod, cmod)
@ -151,20 +176,24 @@ function init(nmod, cmod)
red[i] = 0
green[i] = 0
blue[i] = 0
white[i] = 0
end
for i = 1,num_masses do
pos_r[i] = 0
pos_g[i] = 0
pos_b[i] = 0
pos_w[i] = 0
vel_r[i] = 0
vel_g[i] = 0
vel_b[i] = 0
vel_w[i] = 0
acc_r[i] = 0
acc_g[i] = 0
acc_b[i] = 0
acc_w[i] = 0
DAMPING[i] = 1 - 0.5 * math.pow(math.abs((i - excitement_pos) / num_masses), 2)
end

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@ -13,7 +13,7 @@ case "$MODE" in
*)
# soundkarte
parec -d "alsa_output.pci-0000_00_1b.0.analog-stereo.monitor" --raw --rate=44100 --channels=1 --format=s16 | ./musiclight2 $*
parec --raw --rate=44100 --channels=1 --format=s16 | ./musiclight2 $*
;;
esac

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@ -1,3 +1,3 @@
#!/bin/sh
socat UDP4-RECV:12345 STDOUT | ./musiclight2 $*
socat TCP:cubietruck:6601 STDOUT | ./musiclight2 $*

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@ -16,25 +16,25 @@
#include <string.h>
#include <stdio.h>
#include "ws2801.h"
#include "sk6812.h"
#define SET_COLOR 0
#define FADE_COLOR 1
#define ADD_COLOR 2
#define SET_FADESTEP 3
struct WS2801Packet {
struct __attribute__((__packed__)) SK6812Packet {
uint8_t action;
uint8_t module;
uint8_t data[3];
uint16_t module;
uint8_t data[4];
};
int ws2801_socket = -1;
struct WS2801Packet packetQueue[1024];
int sk6812_socket = -1;
struct __attribute__((__packed__)) SK6812Packet packetQueue[1024];
int queueIndex = 0;
// creates the socket needed for steering the LED strip
int ws2801_init(const char *host, unsigned short port) {
int sk6812_init(const char *host, unsigned short port) {
struct addrinfo hints;
struct addrinfo *result;
char portstr[6];
@ -52,14 +52,14 @@ int ws2801_init(const char *host, unsigned short port) {
return 1;
}
ws2801_socket = socket(result->ai_family, result->ai_socktype, result->ai_protocol);
if (ws2801_socket == -1) {
sk6812_socket = socket(result->ai_family, result->ai_socktype, result->ai_protocol);
if (sk6812_socket == -1) {
perror("socket() failed");
freeaddrinfo(result);
return 2;
}
if (connect(ws2801_socket, result->ai_addr, result->ai_addrlen) == -1) {
if (connect(sk6812_socket, result->ai_addr, result->ai_addrlen) == -1) {
perror("connect() failed");
freeaddrinfo(result);
return 3;
@ -70,41 +70,44 @@ int ws2801_init(const char *host, unsigned short port) {
return 0;
}
void ws2801_set_color(uint8_t module, uint8_t r, uint8_t g, uint8_t b) {
void sk6812_set_color(uint16_t module, uint8_t r, uint8_t g, uint8_t b, uint8_t w) {
packetQueue[queueIndex].action = SET_COLOR;
packetQueue[queueIndex].module = module;
packetQueue[queueIndex].module = htons(module);
packetQueue[queueIndex].data[0] = r;
packetQueue[queueIndex].data[1] = g;
packetQueue[queueIndex].data[2] = b;
packetQueue[queueIndex].data[3] = w;
queueIndex++;
}
void ws2801_fade_color(uint8_t module, uint8_t r, uint8_t g, uint8_t b) {
void sk6812_fade_color(uint16_t module, uint8_t r, uint8_t g, uint8_t b, uint8_t w) {
packetQueue[queueIndex].action = FADE_COLOR;
packetQueue[queueIndex].module = module;
packetQueue[queueIndex].module = htons(module);
packetQueue[queueIndex].data[0] = r;
packetQueue[queueIndex].data[1] = g;
packetQueue[queueIndex].data[2] = b;
packetQueue[queueIndex].data[3] = w;
queueIndex++;
}
void ws2801_add_color(uint8_t module, uint8_t r, uint8_t g, uint8_t b) {
void sk6812_add_color(uint16_t module, uint8_t r, uint8_t g, uint8_t b, uint8_t w) {
packetQueue[queueIndex].action = ADD_COLOR;
packetQueue[queueIndex].module = module;
packetQueue[queueIndex].module = htons(module);
packetQueue[queueIndex].data[0] = r;
packetQueue[queueIndex].data[1] = g;
packetQueue[queueIndex].data[2] = b;
packetQueue[queueIndex].data[3] = w;
queueIndex++;
}
void ws2801_set_fadestep(uint8_t fadestep) {
void sk6812_set_fadestep(uint8_t fadestep) {
packetQueue[queueIndex].action = SET_FADESTEP;
packetQueue[queueIndex].data[0] = fadestep;
queueIndex++;
}
int ws2801_commit(void) {
if(send(ws2801_socket, packetQueue, queueIndex * sizeof(struct WS2801Packet), 0) == -1) {
int sk6812_commit(void) {
if(send(sk6812_socket, packetQueue, queueIndex * sizeof(struct SK6812Packet), 0) == -1) {
return 1;
}
@ -112,6 +115,6 @@ int ws2801_commit(void) {
return 0;
}
void ws2801_shutdown() {
close(ws2801_socket);
void sk6812_shutdown() {
close(sk6812_socket);
}

22
sk6812.h Normal file
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@ -0,0 +1,22 @@
/*
* vim: sw=2 ts=2 expandtab
*
* "THE PIZZA-WARE LICENSE" (derived from "THE BEER-WARE LICENCE"):
* Thomas Kolb <cfr34k@tkolb.de> wrote this file. As long as you retain this
* notice you can do whatever you want with this stuff. If we meet some day,
* and you think this stuff is worth it, you can buy me a pizza in return.
* - Thomas Kolb
*/
#ifndef SK6812_H
#define SK6812_H
int sk6812_init(const char *host, unsigned short port);
void sk6812_set_color(uint16_t module, uint8_t r, uint8_t g, uint8_t b, uint8_t w);
void sk6812_fade_color(uint16_t module, uint8_t r, uint8_t g, uint8_t b, uint8_t w);
void sk6812_add_color(uint16_t module, uint8_t r, uint8_t g, uint8_t b, uint8_t w);
void sk6812_set_fadestep(uint8_t fadestep);
int sk6812_commit(void);
void sk6812_shutdown(void);
#endif // SK6812_H

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@ -1,22 +0,0 @@
/*
* vim: sw=2 ts=2 expandtab
*
* "THE PIZZA-WARE LICENSE" (derived from "THE BEER-WARE LICENCE"):
* Thomas Kolb <cfr34k@tkolb.de> wrote this file. As long as you retain this
* notice you can do whatever you want with this stuff. If we meet some day,
* and you think this stuff is worth it, you can buy me a pizza in return.
* - Thomas Kolb
*/
#ifndef WS2801_H
#define WS2801_H
int ws2801_init(const char *host, unsigned short port);
void ws2801_set_color(uint8_t module, uint8_t r, uint8_t g, uint8_t b);
void ws2801_fade_color(uint8_t module, uint8_t r, uint8_t g, uint8_t b);
void ws2801_add_color(uint8_t module, uint8_t r, uint8_t g, uint8_t b);
void ws2801_set_fadestep(uint8_t fadestep);
int ws2801_commit(void);
void ws2801_shutdown(void);
#endif // WS2801_H