/* .______ .______ __ __ __ __ ___ __ __ .___________. ______ .___ ___. ___ .___________. __ ______ .__ __. | _ \ | _ \ | | | | | | | | / \ | | | | | | / __ \ | \/ | / \ | || | / __ \ | \ | | | |_) | | |_) | | | | | | |__| | / ^ \ | | | | `---| |----`| | | | | \ / | / ^ \ `---| |----`| | | | | | | \| | | _ < | / | | | | | __ | / /_\ \ | | | | | | | | | | | |\/| | / /_\ \ | | | | | | | | | . ` | | |_) | | |\ \-.| `--' | | | | | / _____ \ | `--' | | | | `--' | | | | | / _____ \ | | | | | `--' | | |\ | |______/ | _| `.__| \______/ |__| |__| /__/ \__\ \______/ |__| \______/ |__| |__| /__/ \__\ |__| |__| \______/ |__| \__| Thanks much to @corbanmailloux for providing a great framework for implementing flash/fade with HomeAssistant https://github.com/corbanmailloux/esp-mqtt-rgb-led To use this code you will need the following dependancies: - Support for the ESP8266 boards. - You can add it to the board manager by going to File -> Preference and pasting http://arduino.esp8266.com/stable/package_esp8266com_index.json into the Additional Board Managers URL field. - Next, download the ESP8266 dependancies by going to Tools -> Board -> Board Manager and searching for ESP8266 and installing it. - You will also need to download the follow libraries by going to Sketch -> Include Libraries -> Manage Libraries - FastLED - PubSubClient - ArduinoJSON */ #include #include #include #include "FastLED.h" #include #include #include /************ WIFI and MQTT Information (CHANGE THESE FOR YOUR SETUP) ******************/ const char* ssid = "YourSSID"; //type your WIFI information inside the quotes const char* password = "YourWIFIpassword"; const char* mqtt_server = "your.MQTT.server.ip"; const char* mqtt_username = "yourMQTTusername"; const char* mqtt_password = "yourMQTTpassword"; const int mqtt_port = 1883; /**************************** FOR OTA **************************************************/ #define SENSORNAME "porch" //change this to whatever you want to call your device #define OTApassword "yourOTApassword" //the password you will need to enter to upload remotely via the ArduinoIDE int OTAport = 8266; /************* MQTT TOPICS (change these topics as you wish) **************************/ const char* light_state_topic = "bruh/porch"; const char* light_set_topic = "bruh/porch/set"; const char* on_cmd = "ON"; const char* off_cmd = "OFF"; const char* effect = "solid"; String effectString = "solid"; String oldeffectString = "solid"; /****************************************FOR JSON***************************************/ const int BUFFER_SIZE = JSON_OBJECT_SIZE(10); #define MQTT_MAX_PACKET_SIZE 512 /*********************************** FastLED Defintions ********************************/ #define NUM_LEDS 186 #define DATA_PIN 5 //#define CLOCK_PIN 5 #define CHIPSET WS2811 #define COLOR_ORDER BRG byte realRed = 0; byte realGreen = 0; byte realBlue = 0; byte red = 255; byte green = 255; byte blue = 255; byte brightness = 255; /******************************** GLOBALS for fade/flash *******************************/ bool stateOn = false; bool startFade = false; bool onbeforeflash = false; unsigned long lastLoop = 0; int transitionTime = 0; int effectSpeed = 0; bool inFade = false; int loopCount = 0; int stepR, stepG, stepB; int redVal, grnVal, bluVal; bool flash = false; bool startFlash = false; int flashLength = 0; unsigned long flashStartTime = 0; byte flashRed = red; byte flashGreen = green; byte flashBlue = blue; byte flashBrightness = brightness; /********************************** GLOBALS for EFFECTS ******************************/ //RAINBOW uint8_t thishue = 0; // Starting hue value. uint8_t deltahue = 10; //CANDYCANE CRGBPalette16 currentPalettestriped; //for Candy Cane CRGBPalette16 gPal; //for fire //NOISE static uint16_t dist; // A random number for our noise generator. uint16_t scale = 30; // Wouldn't recommend changing this on the fly, or the animation will be really blocky. uint8_t maxChanges = 48; // Value for blending between palettes. CRGBPalette16 targetPalette(OceanColors_p); CRGBPalette16 currentPalette(CRGB::Black); //TWINKLE #define DENSITY 80 int twinklecounter = 0; //RIPPLE uint8_t colour; // Ripple colour is randomized. int center = 0; // Center of the current ripple. int step = -1; // -1 is the initializing step. uint8_t myfade = 255; // Starting brightness. #define maxsteps 16 // Case statement wouldn't allow a variable. uint8_t bgcol = 0; // Background colour rotates. int thisdelay = 20; // Standard delay value. //DOTS uint8_t count = 0; // Count up to 255 and then reverts to 0 uint8_t fadeval = 224; // Trail behind the LED's. Lower => faster fade. uint8_t bpm = 30; //LIGHTNING uint8_t frequency = 50; // controls the interval between strikes uint8_t flashes = 8; //the upper limit of flashes per strike unsigned int dimmer = 1; uint8_t ledstart; // Starting location of a flash uint8_t ledlen; int lightningcounter = 0; //FUNKBOX int idex = 0; //-LED INDEX (0 to NUM_LEDS-1 int TOP_INDEX = int(NUM_LEDS / 2); int thissat = 255; //-FX LOOPS DELAY VAR uint8_t thishuepolice = 0; int antipodal_index(int i) { int iN = i + TOP_INDEX; if (i >= TOP_INDEX) { iN = ( i + TOP_INDEX ) % NUM_LEDS; } return iN; } //FIRE #define COOLING 55 #define SPARKING 120 bool gReverseDirection = false; //BPM uint8_t gHue = 0; WiFiClient espClient; PubSubClient client(espClient); struct CRGB leds[NUM_LEDS]; /********************************** START SETUP*****************************************/ void setup() { Serial.begin(115200); FastLED.addLeds(leds, NUM_LEDS); setupStripedPalette( CRGB::Red, CRGB::Red, CRGB::White, CRGB::White); //for CANDY CANE gPal = HeatColors_p; //for FIRE setup_wifi(); client.setServer(mqtt_server, mqtt_port); client.setCallback(callback); //OTA SETUP ArduinoOTA.setPort(OTAport); // Hostname defaults to esp8266-[ChipID] ArduinoOTA.setHostname(SENSORNAME); // No authentication by default ArduinoOTA.setPassword((const char *)OTApassword); ArduinoOTA.onStart([]() { Serial.println("Starting"); }); ArduinoOTA.onEnd([]() { Serial.println("\nEnd"); }); ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) { Serial.printf("Progress: %u%%\r", (progress / (total / 100))); }); ArduinoOTA.onError([](ota_error_t error) { Serial.printf("Error[%u]: ", error); if (error == OTA_AUTH_ERROR) Serial.println("Auth Failed"); else if (error == OTA_BEGIN_ERROR) Serial.println("Begin Failed"); else if (error == OTA_CONNECT_ERROR) Serial.println("Connect Failed"); else if (error == OTA_RECEIVE_ERROR) Serial.println("Receive Failed"); else if (error == OTA_END_ERROR) Serial.println("End Failed"); }); ArduinoOTA.begin(); Serial.println("Ready"); Serial.print("IP Address: "); Serial.println(WiFi.localIP()); } /********************************** START SETUP WIFI*****************************************/ void setup_wifi() { delay(10); // We start by connecting to a WiFi network Serial.println(); Serial.print("Connecting to "); Serial.println(ssid); WiFi.mode(WIFI_STA); WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } Serial.println(""); Serial.println("WiFi connected"); Serial.println("IP address: "); Serial.println(WiFi.localIP()); } /* SAMPLE PAYLOAD: { "brightness": 120, "color": { "r": 255, "g": 100, "b": 100 }, "flash": 2, "transition": 5, "state": "ON" } */ /********************************** START CALLBACK*****************************************/ void callback(char* topic, byte* payload, unsigned int length) { Serial.print("Message arrived ["); Serial.print(topic); Serial.print("] "); char message[length + 1]; for (int i = 0; i < length; i++) { message[i] = (char)payload[i]; } message[length] = '\0'; Serial.println(message); if (!processJson(message)) { return; } if (stateOn) { realRed = map(red, 0, 255, 0, brightness); realGreen = map(green, 0, 255, 0, brightness); realBlue = map(blue, 0, 255, 0, brightness); } else { realRed = 0; realGreen = 0; realBlue = 0; } Serial.println(effect); startFade = true; inFade = false; // Kill the current fade sendState(); } /********************************** START PROCESS JSON*****************************************/ bool processJson(char* message) { StaticJsonBuffer jsonBuffer; JsonObject& root = jsonBuffer.parseObject(message); if (!root.success()) { Serial.println("parseObject() failed"); return false; } if (root.containsKey("state")) { if (strcmp(root["state"], on_cmd) == 0) { stateOn = true; } else if (strcmp(root["state"], off_cmd) == 0) { stateOn = false; onbeforeflash = false; } } // If "flash" is included, treat RGB and brightness differently if (root.containsKey("flash")) { flashLength = (int)root["flash"] * 1000; oldeffectString = effectString; if (root.containsKey("brightness")) { flashBrightness = root["brightness"]; } else { flashBrightness = brightness; } if (root.containsKey("color")) { flashRed = root["color"]["r"]; flashGreen = root["color"]["g"]; flashBlue = root["color"]["b"]; } else { flashRed = red; flashGreen = green; flashBlue = blue; } if (root.containsKey("effect")) { effect = root["effect"]; effectString = effect; twinklecounter = 0; //manage twinklecounter } if (root.containsKey("transition")) { transitionTime = root["transition"]; } else if ( effectString == "solid") { transitionTime = 0; } flashRed = map(flashRed, 0, 255, 0, flashBrightness); flashGreen = map(flashGreen, 0, 255, 0, flashBrightness); flashBlue = map(flashBlue, 0, 255, 0, flashBrightness); flash = true; startFlash = true; } else { // Not flashing flash = false; if (stateOn) { //if the light is turned on and the light isn't flashing onbeforeflash = true; } if (root.containsKey("color")) { red = root["color"]["r"]; green = root["color"]["g"]; blue = root["color"]["b"]; } if (root.containsKey("color_temp")) { //temp comes in as mireds, need to convert to kelvin then to RGB int color_temp = root["color_temp"]; unsigned int kelvin = MILLION / color_temp; temp2rgb(kelvin); } if (root.containsKey("brightness")) { brightness = root["brightness"]; } if (root.containsKey("effect")) { effect = root["effect"]; effectString = effect; twinklecounter = 0; //manage twinklecounter } if (root.containsKey("transition")) { transitionTime = root["transition"]; } else if ( effectString == "solid") { transitionTime = 0; } } return true; } /********************************** START SEND STATE*****************************************/ void sendState() { StaticJsonBuffer jsonBuffer; JsonObject& root = jsonBuffer.createObject(); root["state"] = (stateOn) ? on_cmd : off_cmd; JsonObject& color = root.createNestedObject("color"); color["r"] = red; color["g"] = green; color["b"] = blue; root["brightness"] = brightness; root["effect"] = effectString.c_str(); char buffer[root.measureLength() + 1]; root.printTo(buffer, sizeof(buffer)); client.publish(light_state_topic, buffer, true); } /********************************** START RECONNECT*****************************************/ void reconnect() { // Loop until we're reconnected while (!client.connected()) { Serial.print("Attempting MQTT connection..."); // Attempt to connect if (client.connect(SENSORNAME, mqtt_username, mqtt_password)) { Serial.println("connected"); client.subscribe(light_set_topic); setColor(0, 0, 0); sendState(); } else { Serial.print("failed, rc="); Serial.print(client.state()); Serial.println(" try again in 5 seconds"); // Wait 5 seconds before retrying delay(5000); } } } /********************************** START Set Color*****************************************/ void setColor(int inR, int inG, int inB) { for (int i = 0; i < NUM_LEDS; i++) { leds[i].red = inR; leds[i].green = inG; leds[i].blue = inB; } FastLED.show(); Serial.println("Setting LEDs:"); Serial.print("r: "); Serial.print(inR); Serial.print(", g: "); Serial.print(inG); Serial.print(", b: "); Serial.println(inB); } /********************************** START MAIN LOOP*****************************************/ void loop() { if (!client.connected()) { reconnect(); } if (WiFi.status() != WL_CONNECTED) { delay(1); Serial.print("WIFI Disconnected. Attempting reconnection."); setup_wifi(); return; } client.loop(); ArduinoOTA.handle(); //EFFECT BPM if (effectString == "bpm") { uint8_t BeatsPerMinute = 62; CRGBPalette16 palette = PartyColors_p; uint8_t beat = beatsin8( BeatsPerMinute, 64, 255); for ( int i = 0; i < NUM_LEDS; i++) { //9948 leds[i] = ColorFromPalette(palette, gHue + (i * 2), beat - gHue + (i * 10)); } if (transitionTime == 0 or transitionTime == NULL) { transitionTime = 30; } showleds(); } //EFFECT Candy Cane if (effectString == "candy cane") { static uint8_t startIndex = 0; startIndex = startIndex + 1; /* higher = faster motion */ fill_palette( leds, NUM_LEDS, startIndex, 16, /* higher = narrower stripes */ currentPalettestriped, 255, LINEARBLEND); if (transitionTime == 0 or transitionTime == NULL) { transitionTime = 0; } showleds(); } //EFFECT CONFETTI if (effectString == "confetti" ) { fadeToBlackBy( leds, NUM_LEDS, 25); int pos = random16(NUM_LEDS); leds[pos] += CRGB(realRed + random8(64), realGreen, realBlue); if (transitionTime == 0 or transitionTime == NULL) { transitionTime = 30; } showleds(); } //EFFECT CYCLON RAINBOW if (effectString == "cyclon rainbow") { //Single Dot Down static uint8_t hue = 0; // First slide the led in one direction for (int i = 0; i < NUM_LEDS; i++) { // Set the i'th led to red leds[i] = CHSV(hue++, 255, 255); // Show the leds showleds(); // now that we've shown the leds, reset the i'th led to black // leds[i] = CRGB::Black; fadeall(); // Wait a little bit before we loop around and do it again delay(10); } for (int i = (NUM_LEDS) - 1; i >= 0; i--) { // Set the i'th led to red leds[i] = CHSV(hue++, 255, 255); // Show the leds showleds(); // now that we've shown the leds, reset the i'th led to black // leds[i] = CRGB::Black; fadeall(); // Wait a little bit before we loop around and do it again delay(10); } } //EFFECT DOTS if (effectString == "dots") { uint8_t inner = beatsin8(bpm, NUM_LEDS / 4, NUM_LEDS / 4 * 3); uint8_t outer = beatsin8(bpm, 0, NUM_LEDS - 1); uint8_t middle = beatsin8(bpm, NUM_LEDS / 3, NUM_LEDS / 3 * 2); leds[middle] = CRGB::Purple; leds[inner] = CRGB::Blue; leds[outer] = CRGB::Aqua; nscale8(leds, NUM_LEDS, fadeval); if (transitionTime == 0 or transitionTime == NULL) { transitionTime = 30; } showleds(); } //EFFECT FIRE if (effectString == "fire") { Fire2012WithPalette(); if (transitionTime == 0 or transitionTime == NULL) { transitionTime = 150; } showleds(); } random16_add_entropy( random8()); //EFFECT Glitter if (effectString == "glitter") { fadeToBlackBy( leds, NUM_LEDS, 20); addGlitterColor(80, realRed, realGreen, realBlue); if (transitionTime == 0 or transitionTime == NULL) { transitionTime = 30; } showleds(); } //EFFECT JUGGLE if (effectString == "juggle" ) { // eight colored dots, weaving in and out of sync with each other fadeToBlackBy(leds, NUM_LEDS, 20); for (int i = 0; i < 8; i++) { leds[beatsin16(i + 7, 0, NUM_LEDS - 1 )] |= CRGB(realRed, realGreen, realBlue); } if (transitionTime == 0 or transitionTime == NULL) { transitionTime = 130; } showleds(); } //EFFECT LIGHTNING if (effectString == "lightning") { twinklecounter = twinklecounter + 1; //Resets strip if previous animation was running if (twinklecounter < 2) { FastLED.clear(); FastLED.show(); } ledstart = random8(NUM_LEDS); // Determine starting location of flash ledlen = random8(NUM_LEDS - ledstart); // Determine length of flash (not to go beyond NUM_LEDS-1) for (int flashCounter = 0; flashCounter < random8(3, flashes); flashCounter++) { if (flashCounter == 0) dimmer = 5; // the brightness of the leader is scaled down by a factor of 5 else dimmer = random8(1, 3); // return strokes are brighter than the leader fill_solid(leds + ledstart, ledlen, CHSV(255, 0, 255 / dimmer)); showleds(); // Show a section of LED's delay(random8(4, 10)); // each flash only lasts 4-10 milliseconds fill_solid(leds + ledstart, ledlen, CHSV(255, 0, 0)); // Clear the section of LED's showleds(); if (flashCounter == 0) delay (130); // longer delay until next flash after the leader delay(50 + random8(100)); // shorter delay between strokes } delay(random8(frequency) * 100); // delay between strikes if (transitionTime == 0 or transitionTime == NULL) { transitionTime = 0; } showleds(); } //EFFECT POLICE ALL if (effectString == "police all") { //POLICE LIGHTS (TWO COLOR SOLID) idex++; if (idex >= NUM_LEDS) { idex = 0; } int idexR = idex; int idexB = antipodal_index(idexR); int thathue = (thishuepolice + 160) % 255; leds[idexR] = CHSV(thishuepolice, thissat, 255); leds[idexB] = CHSV(thathue, thissat, 255); if (transitionTime == 0 or transitionTime == NULL) { transitionTime = 30; } showleds(); } //EFFECT POLICE ONE if (effectString == "police one") { idex++; if (idex >= NUM_LEDS) { idex = 0; } int idexR = idex; int idexB = antipodal_index(idexR); int thathue = (thishuepolice + 160) % 255; for (int i = 0; i < NUM_LEDS; i++ ) { if (i == idexR) { leds[i] = CHSV(thishuepolice, thissat, 255); } else if (i == idexB) { leds[i] = CHSV(thathue, thissat, 255); } else { leds[i] = CHSV(0, 0, 0); } } if (transitionTime == 0 or transitionTime == NULL) { transitionTime = 30; } showleds(); } //EFFECT RAINBOW if (effectString == "rainbow") { // FastLED's built-in rainbow generator static uint8_t starthue = 0; thishue++; fill_rainbow(leds, NUM_LEDS, thishue, deltahue); if (transitionTime == 0 or transitionTime == NULL) { transitionTime = 130; } showleds(); } //EFFECT RAINBOW WITH GLITTER if (effectString == "rainbow with glitter") { // FastLED's built-in rainbow generator with Glitter static uint8_t starthue = 0; thishue++; fill_rainbow(leds, NUM_LEDS, thishue, deltahue); addGlitter(80); if (transitionTime == 0 or transitionTime == NULL) { transitionTime = 130; } showleds(); } //EFFECT SIENLON if (effectString == "sinelon") { fadeToBlackBy( leds, NUM_LEDS, 20); int pos = beatsin16(13, 0, NUM_LEDS - 1); leds[pos] += CRGB(realRed, realGreen, realBlue); if (transitionTime == 0 or transitionTime == NULL) { transitionTime = 150; } showleds(); } //EFFECT TWINKLE if (effectString == "twinkle") { twinklecounter = twinklecounter + 1; if (twinklecounter < 2) { //Resets strip if previous animation was running FastLED.clear(); FastLED.show(); } const CRGB lightcolor(8, 7, 1); for ( int i = 0; i < NUM_LEDS; i++) { if ( !leds[i]) continue; // skip black pixels if ( leds[i].r & 1) { // is red odd? leds[i] -= lightcolor; // darken if red is odd } else { leds[i] += lightcolor; // brighten if red is even } } if ( random8() < DENSITY) { int j = random16(NUM_LEDS); if ( !leds[j] ) leds[j] = lightcolor; } if (transitionTime == 0 or transitionTime == NULL) { transitionTime = 0; } showleds(); } EVERY_N_MILLISECONDS(10) { nblendPaletteTowardPalette(currentPalette, targetPalette, maxChanges); // FOR NOISE ANIMATIon { gHue++; } //EFFECT NOISE if (effectString == "noise") { for (int i = 0; i < NUM_LEDS; i++) { // Just onE loop to fill up the LED array as all of the pixels change. uint8_t index = inoise8(i * scale, dist + i * scale) % 255; // Get a value from the noise function. I'm using both x and y axis. leds[i] = ColorFromPalette(currentPalette, index, 255, LINEARBLEND); // With that value, look up the 8 bit colour palette value and assign it to the current LED. } dist += beatsin8(10, 1, 4); // Moving along the distance (that random number we started out with). Vary it a bit with a sine wave. // In some sketches, I've used millis() instead of an incremented counter. Works a treat. if (transitionTime == 0 or transitionTime == NULL) { transitionTime = 0; } showleds(); } //EFFECT RIPPLE if (effectString == "ripple") { for (int i = 0; i < NUM_LEDS; i++) leds[i] = CHSV(bgcol++, 255, 15); // Rotate background colour. switch (step) { case -1: // Initialize ripple variables. center = random(NUM_LEDS); colour = random8(); step = 0; break; case 0: leds[center] = CHSV(colour, 255, 255); // Display the first pixel of the ripple. step ++; break; case maxsteps: // At the end of the ripples. step = -1; break; default: // Middle of the ripples. leds[(center + step + NUM_LEDS) % NUM_LEDS] += CHSV(colour, 255, myfade / step * 2); // Simple wrap from Marc Miller leds[(center - step + NUM_LEDS) % NUM_LEDS] += CHSV(colour, 255, myfade / step * 2); step ++; // Next step. break; } if (transitionTime == 0 or transitionTime == NULL) { transitionTime = 30; } showleds(); } } EVERY_N_SECONDS(5) { targetPalette = CRGBPalette16(CHSV(random8(), 255, random8(128, 255)), CHSV(random8(), 255, random8(128, 255)), CHSV(random8(), 192, random8(128, 255)), CHSV(random8(), 255, random8(128, 255))); } //FLASH AND FADE SUPPORT if (flash) { if (startFlash) { startFlash = false; flashStartTime = millis(); } if ((millis() - flashStartTime) <= flashLength) { if ((millis() - flashStartTime) % 1000 <= 500) { setColor(flashRed, flashGreen, flashBlue); } else { setColor(0, 0, 0); // If you'd prefer the flashing to happen "on top of" // the current color, uncomment the next line. // setColor(realRed, realGreen, realBlue); } } else { flash = false; effectString = oldeffectString; if (onbeforeflash) { //keeps light off after flash if light was originally off setColor(realRed, realGreen, realBlue); } else { stateOn = false; setColor(0, 0, 0); sendState(); } } } if (startFade && effectString == "solid") { // If we don't want to fade, skip it. if (transitionTime == 0) { setColor(realRed, realGreen, realBlue); redVal = realRed; grnVal = realGreen; bluVal = realBlue; startFade = false; } else { loopCount = 0; stepR = calculateStep(redVal, realRed); stepG = calculateStep(grnVal, realGreen); stepB = calculateStep(bluVal, realBlue); inFade = true; } } if (inFade) { startFade = false; unsigned long now = millis(); if (now - lastLoop > transitionTime) { if (loopCount <= 1020) { lastLoop = now; redVal = calculateVal(stepR, redVal, loopCount); grnVal = calculateVal(stepG, grnVal, loopCount); bluVal = calculateVal(stepB, bluVal, loopCount); if (effectString == "solid") { setColor(redVal, grnVal, bluVal); // Write current values to LED pins } loopCount++; } else { inFade = false; } } } } /**************************** START TRANSITION FADER *****************************************/ // From https://www.arduino.cc/en/Tutorial/ColorCrossfader /* BELOW THIS LINE IS THE MATH -- YOU SHOULDN'T NEED TO CHANGE THIS FOR THE BASICS The program works like this: Imagine a crossfade that moves the red LED from 0-10, the green from 0-5, and the blue from 10 to 7, in ten steps. We'd want to count the 10 steps and increase or decrease color values in evenly stepped increments. Imagine a + indicates raising a value by 1, and a - equals lowering it. Our 10 step fade would look like: 1 2 3 4 5 6 7 8 9 10 R + + + + + + + + + + G + + + + + B - - - The red rises from 0 to 10 in ten steps, the green from 0-5 in 5 steps, and the blue falls from 10 to 7 in three steps. In the real program, the color percentages are converted to 0-255 values, and there are 1020 steps (255*4). To figure out how big a step there should be between one up- or down-tick of one of the LED values, we call calculateStep(), which calculates the absolute gap between the start and end values, and then divides that gap by 1020 to determine the size of the step between adjustments in the value. */ int calculateStep(int prevValue, int endValue) { int step = endValue - prevValue; // What's the overall gap? if (step) { // If its non-zero, step = 1020 / step; // divide by 1020 } return step; } /* The next function is calculateVal. When the loop value, i, reaches the step size appropriate for one of the colors, it increases or decreases the value of that color by 1. (R, G, and B are each calculated separately.) */ int calculateVal(int step, int val, int i) { if ((step) && i % step == 0) { // If step is non-zero and its time to change a value, if (step > 0) { // increment the value if step is positive... val += 1; } else if (step < 0) { // ...or decrement it if step is negative val -= 1; } } // Defensive driving: make sure val stays in the range 0-255 if (val > 255) { val = 255; } else if (val < 0) { val = 0; } return val; } /**************************** START STRIPLED PALETTE *****************************************/ void setupStripedPalette( CRGB A, CRGB AB, CRGB B, CRGB BA) { currentPalettestriped = CRGBPalette16( A, A, A, A, A, A, A, A, B, B, B, B, B, B, B, B // A, A, A, A, A, A, A, A, B, B, B, B, B, B, B, B ); } /********************************** START FADE************************************************/ void fadeall() { for (int i = 0; i < NUM_LEDS; i++) { leds[i].nscale8(250); //for CYCLon } } /********************************** START FIRE **********************************************/ void Fire2012WithPalette() { // Array of temperature readings at each simulation cell static byte heat[NUM_LEDS]; // Step 1. Cool down every cell a little for ( int i = 0; i < NUM_LEDS; i++) { heat[i] = qsub8( heat[i], random8(0, ((COOLING * 10) / NUM_LEDS) + 2)); } // Step 2. Heat from each cell drifts 'up' and diffuses a little for ( int k = NUM_LEDS - 1; k >= 2; k--) { heat[k] = (heat[k - 1] + heat[k - 2] + heat[k - 2] ) / 3; } // Step 3. Randomly ignite new 'sparks' of heat near the bottom if ( random8() < SPARKING ) { int y = random8(7); heat[y] = qadd8( heat[y], random8(160, 255) ); } // Step 4. Map from heat cells to LED colors for ( int j = 0; j < NUM_LEDS; j++) { // Scale the heat value from 0-255 down to 0-240 // for best results with color palettes. byte colorindex = scale8( heat[j], 240); CRGB color = ColorFromPalette( gPal, colorindex); int pixelnumber; if ( gReverseDirection ) { pixelnumber = (NUM_LEDS - 1) - j; } else { pixelnumber = j; } leds[pixelnumber] = color; } } /********************************** START ADD GLITTER *********************************************/ void addGlitter( fract8 chanceOfGlitter) { if ( random8() < chanceOfGlitter) { leds[ random16(NUM_LEDS) ] += CRGB::White; } } /********************************** START ADD GLITTER COLOR ****************************************/ void addGlitterColor( fract8 chanceOfGlitter, int red, int green, int blue) { if ( random8() < chanceOfGlitter) { leds[ random16(NUM_LEDS) ] += CRGB(red, green, blue); } } /********************************** START SHOW LEDS ***********************************************/ void showleds() { delay(1); if (stateOn) { FastLED.setBrightness(brightness); //EXECUTE EFFECT COLOR FastLED.show(); if (transitionTime > 0 && transitionTime < 130) { //Sets animation speed based on receieved value FastLED.delay(1000 / transitionTime); //delay(10*transitionTime); } } else if (startFade) { setColor(0, 0, 0); startFade = false; } } void temp2rgb(unsigned int kelvin) { int tmp_internal = kelvin / 100.0; // red if (tmp_internal <= 66) { red = 255; } else { float tmp_red = 329.698727446 * pow(tmp_internal - 60, -0.1332047592); if (tmp_red < 0) { red = 0; } else if (tmp_red > 255) { red = 255; } else { red = tmp_red; } } // green if (tmp_internal <=66){ float tmp_green = 99.4708025861 * log(tmp_internal) - 161.1195681661; if (tmp_green < 0) { green = 0; } else if (tmp_green > 255) { green = 255; } else { green = tmp_green; } } else { float tmp_green = 288.1221695283 * pow(tmp_internal - 60, -0.0755148492); if (tmp_green < 0) { green = 0; } else if (tmp_green > 255) { green = 255; } else { green = tmp_green; } } // blue if (tmp_internal >=66) { blue = 255; } else if (tmp_internal <= 19) { blue = 0; } else { float tmp_blue = 138.5177312231 * log(tmp_internal - 10) - 305.0447927307; if (tmp_blue < 0) { blue = 0; } else if (tmp_blue > 255) { blue = 255; } else { blue = tmp_blue; } } }