Added V0.6 (Untested: oneled)
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ad4d1c0389
305
src/main.cpp
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305
src/main.cpp
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/*
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* This is a little firmware for my ledstrip.
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* Normally befor sending it to git, I am testing it. But I can't test it while in school...
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* So the code here might work or not. But I should be able to garantee that it is working on a Node-MCU (ESP8266) when I tested it.
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*
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* Tested: NO (I did not test it yet)
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* Not Tested funktion: oneled
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*/
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#include <Arduino.h>
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#include <Homie.h>
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#include <Adafruit_NeoPixel.h>
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#include <ArduinoJson.h>
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#define NUMPIXELS 56
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#define PIN D1
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//Includes + defines complete.
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//Declaring all Methods the make sure the compiler findes them.
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void reset();
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void changeLedColor();
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//Declaring very important Variables
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Adafruit_NeoPixel strip = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
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HomieNode stripNode("strip", "Led Strip State");
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//Declaring other Variables
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String thingToDo = "";
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uint32_t color;
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long toDelay = 50;
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double fadeRed = 0;
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double fadeGreen = 0;
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double fadeBlue = 0;
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int nextLed = 0;
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//MQTT RECIEVE[devices/stripbed/strip/leds/set] (EVENT: Fired when MQTT Message has been recieved)
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bool onLedsShouldChange(String value){
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char chars[value.length() + 1];
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strcpy(chars, value.c_str()); //Transforming String into char array.
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StaticJsonBuffer<200> jsonBuffer;
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JsonObject& root = jsonBuffer.parseObject(chars); //Parsing JSON String
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if(!root.success()){ //Parsing succeed?
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Homie.setNodeProperty(stripNode, "last", "{\"state\":\"error\",\"id\":\"jsonParseError\",\"msg\":\"Failed to parse Data.\"}"); //Rückmeldung an den Broker das der String nicht geparsed werden konnte
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return false; //If not: sending Error Message and returning false.
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}
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String actionToDo = "";
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const char* bitToStringy = root["action"]; //Getting: Action
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actionToDo = String(bitToStringy); //Transforming char* into String
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if(actionToDo == "off"){
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for(int count = 0;count < NUMPIXELS; count++){
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strip.setPixelColor(count, strip.Color(0, 0, 0)); //All Leds are set to black (off)
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}
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strip.show(); //Updating Ledstrip.
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Homie.setNodeProperty(stripNode, "last", "{\"state\":\"success\"}"); //Sending Success Message back to MQTT broker.
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thingToDo = ""; //Cancel all animation in loop.
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reset(); //Sets animation needed Variables to 0
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return true; //Ends Method with Output: TRUE
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}
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else if(actionToDo == "oneColor"){
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for(int count = 0;count < NUMPIXELS; count++){
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strip.setPixelColor(count, strip.Color(root["red"], root["green"], root["blue"])); //Sets all Leds to RED/GREEN/BLUE values
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}
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strip.show();
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Homie.setNodeProperty(stripNode, "last", "{\"state\":\"success\"}");
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thingToDo = "oneColor"; //Not important for animation but for colorchange feature.
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reset();
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return true;
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}
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else if(actionToDo == "inout"){
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color = strip.Color(root["red"], root["green"], root["blue"]); //Sets color to the submitted color :)
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thingToDo = "inout"; //Sets Animation to inout
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Homie.setNodeProperty(stripNode, "last", "{\"state\":\"success\"}");
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toDelay = root["time"]; //Sets delay to submitted value.
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reset();
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return true;
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}
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else if(actionToDo == "colorchange"){
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if(thingToDo == "inout"){
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color = strip.Color(root["red"], root["green"], root["blue"]); //Sets the color of the ledstrip to a new color.
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toDelay = root["time"]; //Yeah even setting the speed of inout is possible.
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changeLedColor(); //Changes the color of the ledstrip.
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}
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else if(thingToDo == "oneColor"){
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for(int count = 0;count < NUMPIXELS; count++){
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strip.setPixelColor(count, strip.Color(root["red"], root["green"], root["blue"])); //Sets color again. Same result as sending oneColor again
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}
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strip.show();
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}
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else{
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if(thingToDo == ""){
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Homie.setNodeProperty(stripNode, "last", "{\"state\":\"error\",\"id\":\"ledstripIsOff\",\"msg\":\"The Ledstrip is turn off right now.\"}"); //When Ledstrip is turned off.
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}
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else{
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Homie.setNodeProperty(stripNode, "last", "{\"state\":\"error\",\"id\":\"colorChangeNotSupported\",\"msg\":\"ColorChange is not supported by the momently running animation.\"}"); //If a funktion is running which doesn't support a custom color (e.g. Colorfade).
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}
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return true;
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}
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Homie.setNodeProperty(stripNode, "last", "{\"state\":\"success\"}");
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return true;
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}
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else if(actionToDo == "fadein"){
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reset();
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fadeRed = (double)root["red"] / 100.0; //Sets fadeRed to RED / 100.
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fadeGreen = (double)root["green"] / 100.0; //Sets fadeRed to GREEN / 100.
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fadeBlue = (double)root["blue"] / 100.0; //Sets fadeRed to BLUE / 100.
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thingToDo = "fadein";
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Homie.setNodeProperty(stripNode, "last", "{\"state\":\"success\"}");
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toDelay = root["time"];
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return true;
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}
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else if(actionToDo == "colorfade"){
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reset();
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thingToDo = "colorfade";
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fadeRed = 255.0; //fadeRed is a double.
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Homie.setNodeProperty(stripNode, "last", "{\"state\":\"success\"}");
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toDelay = root["time"];
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nextLed = root["leddiff"]; //Led Color Difference. Per Led
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if(nextLed >= 256){
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nextLed == 255;
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}
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return true;
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}
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else if(actionToDo == "oneled"){
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reset();
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thingToDo = "oneLed";
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for(int count = 0;count < root["leds"].size(); count++){
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strip.setPixelColor((int)root["leds"][count]["id"], strip.Color((int)root["leds"][count]["red"], (int)root["leds"][count]["green"], (int)root["leds"][count]["blue"]));
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}
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strip.show();
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Homie.setNodeProperty(stripNode, "last", "{\"state\":\"success\"}");
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return true;
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}
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else{
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Homie.setNodeProperty(stripNode, "last", "{\"state\":\"error\",id:\"unknownCommandError\",msg:\"No such Command.\"}"); //Jeder andere ACTION command wird hier als ungültig abgestempelt.
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return true;
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}
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}
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//Main Funktion #1 (Executed right after NodeMCU got power)
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void setup(){
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strip.begin();
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strip.show();
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Homie.setFirmware("Ledstrip Control", "0.6"); //Firmware: Ledstrip Control: v0.6 (New feature: + 0.1 ; Bugfixe/Improvement of a feature: + 0.0.1)
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stripNode.subscribe("leds", onLedsShouldChange); //MQTT Subscribe
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Homie.registerNode(stripNode); //HomieNode REGISTER
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Homie.setup(); //Homie SETUP
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}
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//Declaring other Variables used by loop();
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unsigned long startNextAction = 0;
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int momentStep = 0;
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//Main Funktion #2 (Executed like 27000 - 32000 times per second but not once befor setup.)
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void loop(){
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Homie.loop();
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if(thingToDo == ""){
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return;
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}
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if(millis() - startNextAction <= toDelay){ //Delaying: Animation should not block Homie in any way.
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return;
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}
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if(thingToDo == "inout"){ // Inout animation
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if(momentStep == 0){
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if(nextLed < NUMPIXELS){
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strip.setPixelColor(nextLed, color);
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strip.show();
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++nextLed;
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startNextAction = millis();
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}
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else if(nextLed == NUMPIXELS){
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nextLed = NUMPIXELS - 2;
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strip.setPixelColor(NUMPIXELS - 1, strip.Color(0, 0, 0));
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strip.show();
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momentStep = 1;
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startNextAction = millis();
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}
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}
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else if(momentStep == 1){
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if(nextLed >= 0){
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strip.setPixelColor(nextLed, strip.Color(0, 0, 0));
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strip.show();
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--nextLed;
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startNextAction = millis();
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}
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else if(nextLed < 0){
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nextLed = 1;
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strip.setPixelColor(0, color);
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strip.show();
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momentStep = 0;
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startNextAction = millis();
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}
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}
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}
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else if(thingToDo == "fadein"){ //FadeIn animation
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for(int count = 0;count < NUMPIXELS; count++){
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strip.setPixelColor(count, strip.Color((int)(fadeRed * ((double)momentStep + 1)), (int)(fadeGreen * ((double)momentStep + 1)), (int)(fadeBlue * ((double)momentStep + 1))));
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}
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strip.show();
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++momentStep;
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if(momentStep >= 100){
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thingToDo = "oneColor";
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reset();
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}
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else{
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startNextAction = millis();
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}
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}
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else if(thingToDo == "colorfade"){ //Colorfade animation
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startNextAction = millis();
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if(momentStep == 0){
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fadeGreen = fadeGreen + (double) nextLed;
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if(fadeGreen >= 256.0){
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fadeRed = fadeRed - (fadeGreen - 255.0);
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fadeGreen = 255.0;
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}
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if(fadeGreen == 255.0){
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momentStep = 1;
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}
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}
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else if(momentStep == 1){
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fadeRed = fadeRed - (double) nextLed;
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if(fadeRed < 0.0){
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fadeBlue = fadeBlue + (fadeRed * -1.0);
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fadeRed = 0.0;
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}
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if(fadeRed == 0.0){
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momentStep = 2;
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}
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}
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else if(momentStep == 2){
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fadeBlue = fadeBlue + (double) nextLed;
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if(fadeBlue >= 256.0){
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fadeGreen = fadeGreen - (fadeBlue - 255.0);
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fadeBlue = 255.0;
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}
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if(fadeBlue == 255.0){
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momentStep = 3;
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}
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}
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else if(momentStep == 3){
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fadeGreen = fadeGreen - (double) nextLed;
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if(fadeGreen < 0.0){
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fadeRed = fadeRed + (fadeGreen * -1.0);
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fadeGreen = 0.0;
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}
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if(fadeGreen == 0.0){
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momentStep = 4;
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}
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}
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else if(momentStep == 4){
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fadeRed = fadeRed + (double) nextLed;
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if(fadeRed >= 256.0){
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fadeBlue = fadeBlue - (fadeRed - 255.0);
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fadeRed = 255.0;
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}
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if(fadeRed == 255.0){
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momentStep = 5;
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}
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}
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else if(momentStep == 5){
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fadeBlue = fadeBlue - (double) nextLed;
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if(fadeBlue < 0.0){
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fadeGreen = fadeGreen + (fadeBlue * -1.0);
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fadeBlue = 0.0;
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}
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if(fadeBlue == 0.0){
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momentStep = 0;
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}
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}
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for(int count = NUMPIXELS - 1; count > 0; count--){
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strip.setPixelColor(count, strip.getPixelColor(count - 1));
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}
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strip.setPixelColor(0, strip.Color((int)fadeRed, (int)fadeGreen, (int)fadeBlue));
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strip.show();
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}
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}
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void changeLedColor(){
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if(momentStep == 0 && thingToDo == "inout"){
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for(int count = 0; count <= (nextLed - 1); count++){
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strip.setPixelColor(count, color);
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}
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strip.show();
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}
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else if(momentStep == 1 && thingToDo == "inout"){
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for(int count = nextLed; count >= 0; count--){
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strip.setPixelColor(count, color);
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}
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strip.show();
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}
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}
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void reset(){
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nextLed = 0;
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momentStep = 0;
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startNextAction = 0;
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fadeRed = 0;
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fadeGreen = 0;
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fadeBlue = 0;
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}
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