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MQTTInfinityCube.ino
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MQTTInfinityCube.ino
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#define FASTLED_INTERNAL
#include <FastLED.h>
#include <ArduinoJson.h>
#include "EspMQTTClient.h"
#include "./config.h"
#define LED_PIN 4
#define NUM_LEDS 12*12
#define startLedDistance 0.65/20
#define interLedDistance 1.7/20
#define messageLength 3000
# define BUTTON1_PIN 15
typedef struct {
float x;
float y;
float z;
} point;
int button1State = 0;
uint8_t heartHue=0;
EspMQTTClient client(
USER_SSID,
USER_WIFI_PASSWORD,
MQTT_BROKER, // MQTT Broker server ip
MQTT_USERNAME, // Can be omitted if not needed
MQTT_PASSWORD, // Can be omitted if not needed
MQTT_CLIENT_NAME, // Client name that uniquely identify your device
1883 // The MQTT port, default to 1883. this line can be omitted
);
String state="OFF";
int brightness=255;
//defines that somehow dont work with float division
float distanceMax = sqrtl(3.0);
float fps = 1.0/60.0*1000;
float speed =0.0001;
point ledPositions[NUM_LEDS] ;
CRGB leds[NUM_LEDS];
int averageTimeouts=0;
unsigned long lastTick;
unsigned long messageStartMillis;
//point reference{0.5,0.5,0.5};
//point moveDirection{0.1,0.24,0.3};
//up down
point reference{0.5,0,0.5};
point moveDirection{0,0.1,0};
//opposite corners
//point reference{0.5,0.5,0.5};
//point moveDirection{1,-1,1};
DEFINE_GRADIENT_PALETTE( heatmap_gp ) {
0, 193, 33, 240, //center pruple
50, 255, 0, 232, //glow
255, 0, 255, 248,}; //cyan
DEFINE_GRADIENT_PALETTE( rainbow_gp ) {
0, 126, 1,142,
25, 171, 1, 26,
48, 224, 9, 1,
71, 237,138, 1,
94, 52,173, 1,
117, 1,201, 1,
140, 1,211, 54,
163, 1,124,168,
186, 1, 8,149,
209, 12, 1,151,
232, 12, 1,151,
255, 171, 1,190};
// Gradient palette "titannightfall_gp", originally from
// http://soliton.vm.bytemark.co.uk/pub/cpt-city/rc/tn/titannightfall.png.index.html
// converted for FastLED with gammas (2.6, 2.2, 2.5)
// Size: 28 bytes of program space.
DEFINE_GRADIENT_PALETTE( titannightfall_gp ) {
0, 173, 72,109,
28, 112, 33, 68,
51, 72, 19, 67,
127, 2, 1, 33,
204, 72, 19, 67,
229, 112, 33, 68,
255, 173, 72,109};
// Gradient palette "tubepreview_gp", originally from
// http://soliton.vm.bytemark.co.uk/pub/cpt-city/rc/tn/tubepreview.png.index.html
// converted for FastLED with gammas (2.6, 2.2, 2.5)
// Size: 32 bytes of program space.
DEFINE_GRADIENT_PALETTE( tubepreview_gp ) {
0, 113, 99, 23,
51, 255,255,255,
76, 255,255,255,
114, 0, 0, 0,
140, 0, 0, 0,
178, 255,255,255,
204, 255,255,255,
255, 113, 99, 23};
CRGBPalette16 myPal = rainbow_gp ;
void setup() {
Serial.begin(115200);
FastLED.addLeds<WS2812, LED_PIN, GRB>(leds, NUM_LEDS);
calculatePositions();
client.enableDebuggingMessages(); // Enable debugging messages sent to serial output
client.enableHTTPWebUpdater(); // Enable the web updater. User and password default to values of MQTTUsername and MQTTPassword. These can be overrited with enableHTTPWebUpdater("user", "password").
client.enableLastWillMessage(CHANNEL_AVAILABLITY, "offline"); // You can activate the retain flag by setting the third parameter to true
normalize(moveDirection);
lastTick=millis();
}
void onConnectionEstablished()
{
client.subscribe(CHANNEL_MQTT_LIGHT_COMMANDS, &handleMessage);
client.subscribe(CHANNEL_HEARTBEAT_RX, &handleHeart);
client.publish(CHANNEL_AVAILABLITY, "online");
}
void loop() {
int timeouts=0;
while(millis()-lastTick<fps){timeouts++;}
if(timeouts==0)
Serial.printf("%fCant keep up, deltaT was %f\n",fps,millis()-lastTick);
else if(((float)(abs(timeouts-averageTimeouts)))/timeouts>0.1){
averageTimeouts=timeouts;
Serial.printf("Next Frame Timeouts is deviating to %d\n",averageTimeouts);
}
lastTick=millis();
if(state=="heart"){
if(millis()-messageStartMillis>messageLength){
state="OFF";
FastLED.setBrightness(0);
}
float percentDone= ((float)(millis()-messageStartMillis))/((float)(messageLength));
percentDone*=2;
if(percentDone>1){
percentDone=-percentDone+2;
}
uint8_t unscaled =(uint8_t)(percentDone*255);
uint8_t scaled = scale8( unscaled, 200);
CHSV color= CHSV(heartHue,200,scaled);
FastLED.clear();
for(int i=0;i<NUM_LEDS;i++){
leds[i]=color;
}
FastLED.show();
}
else{
movePoint(speed*fps);
FastLED.clear();
for(int i=0;i<NUM_LEDS;i++){
calculateColor(i);
}
FastLED.show();
}
/*
while(millis()-lastTick<fps){}
lastTick=millis();
for(int i=0;i<NUM_LEDS;i++){
point current =ledPositions[i];
point origin={0.5,0.5,0.5};
float distance =sqrt(pow(origin.x-current.x,2)+pow(origin.y-current.y,2)+pow(origin.z-current.z,2));
leds[i] = CRGB(0, 0, 0);
}
FastLED.show();
delay(20);
*/
client.loop();
}
void handleHeart(const String & payload){
if(state=="OFF"){
state="heart";
messageStartMillis=millis();
FastLED.setBrightness(255);
}
}
void handleMessage(const String & payload){
Serial.println("incoming: " + payload);
DynamicJsonDocument json(1024);
deserializeJson(json, payload);
String deviceOn = json["state"];
int rec_brightness = json["brightness"];
long rec_spectrumRgb = json["spectrumRgb"];
long my_spectrumRgb;
if (deviceOn == "ON")
{
Serial.println("ON");
state="ON";
FastLED.setBrightness(brightness);
}
if (deviceOn == "OFF")
{
Serial.println("OFF");
state="OFF";
FastLED.setBrightness(0);
}
if (!json["brightness"].isNull())
{
FastLED.setBrightness(rec_brightness);
brightness=rec_brightness;
Serial.println("brightness");
Serial.println(rec_brightness);
}
if (!json["color"].isNull())
{
changeColorPalette(json["color"]["r"],json["color"]["g"],json["color"]["b"]);
}
publishStateChange();
}
void publishStateChange(){
String json = "{\"state\":\""+state+"\",\"brightness\":"+brightness+"}";
client.publish(CHANNEL_MQTT_LIGHT_STATUS, json);
}
void calculateColor(int number){
point x= ledPositions[number];
double distance = sqrt((x.x-reference.x)*(x.x-reference.x)+(x.y-reference.y)*(x.y-reference.y)+(x.z-reference.z)*(x.z-reference.z));
uint8_t normalised = distance/distanceMax*255;
CHSV hsv(normalised,255,255-normalised);
CRGB rgb;
hsv2rgb_rainbow( hsv, rgb);
uint8_t heatindex = sin8((millis()%5100)/20-normalised);
leds[number] = ColorFromPalette( myPal, heatindex);
//leds[number]=rgb;
}
void changeColorPalette(uint8_t r,uint8_t g,uint8_t b) {
CRGB color{r,g,b};
CRGB color2 = color*0.8;
CRGB color3 = color*0.5;
Serial.printf("R:%d G:%d B:%d\n",color.r,color.g,color.b);
byte colorArr[]{
0, color.r, color.g, color.b,
64, color2.r, color2.g, color2.b,
128, color3.r, color3.g, color3.b,
192, color2.r, color2.g, color2.b,
255, color.r, color.g, color.b
};
myPal.loadDynamicGradientPalette( colorArr);
}
void movePoint(float factor){
reference.x+=moveDirection.x*factor;
if(reference.x<0){
moveDirection.x*=-1;
reference.x*=-1;
}
if(reference.x>1){
moveDirection.x*=-1;
reference.x=2-reference.x;
}
reference.y+=moveDirection.y*factor;
if(reference.y<0){
moveDirection.y*=-1;
reference.y*=-1;
}
if(reference.y>1){
moveDirection.y*=-1;
reference.y=2-reference.y;
}
reference.z+=moveDirection.z*factor;
if(reference.z<0){
moveDirection.z*=-1;
reference.z*=-1;
}
if(reference.z>1){
moveDirection.z*=-1;
reference.z=2-reference.z;
}
}
void normalize(point& x){
if(x.x==0&&x.y==0&&x.z==0)
return;
float length = sqrt(sq(x.x)+sq(x.y)+sq(x.z));
x.x/=length;
x.y/=length;
x.z/=length;
}
void calculatePositions(){
point rowDirections[12]={
{ 0, 0, 1 },
{ 0, 1, 0 },
{ 1, 0, 0 },
{ 0, 1, 0 },
{ 0, 0, -1},
{ 0, 1, 0 },
{ -1, 0, 0 },
{ 0, 1, 0 },
{ 1, 0, 0 },
{ 0, 0, 1 },
{ -1, 0, 0 },
{ 0, 0, -1 }
};
point rowBeginPositions[12]={
{ 0, 0, 0 },
{ 0, 0, 1 },
{ 0, 0, 1 },
{ 1, 0, 1 },
{ 1, 0, 1 },
{ 1, 0, 0 },
{ 1, 0, 0 },
{ 0, 0, 0 },
{ 0, 1, 0 },
{ 1, 1, 0 },
{ 1, 1, 1 },
{ 0, 1, 1 }
};
for(int i=0;i<12;i++){
for(int j=0;j<NUM_LEDS/12;j++){
ledPositions[i*12+j].x=rowBeginPositions[i].x+rowDirections[i].x*(startLedDistance+j*interLedDistance);
ledPositions[i*12+j].y=rowBeginPositions[i].y+rowDirections[i].y*(startLedDistance+j*interLedDistance);
ledPositions[i*12+j].z=rowBeginPositions[i].z+rowDirections[i].z*(startLedDistance+j*interLedDistance);
}
}
}
void checkbuttons(){
if(digitalRead(BUTTON1_PIN)==HIGH){
if(button1State==0){
button1State=1;
client.publish(CHANNEL_HEARTBEAT_TX, CHANNEL_HEARTBEAT_MESSAGE);
}
}
}