import initial

.gitignore

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+.pioenvs
+.piolibdeps
+.clang_complete
+.gcc-flags.json
+.travis.yml

lib/readme.txt

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+
+This directory is intended for the project specific (private) libraries.
+PlatformIO will compile them to static libraries and link to executable file.
+
+The source code of each library should be placed in separate directory, like
+"lib/private_lib/[here are source files]".
+
+For example, see how can be organized `Foo` and `Bar` libraries:
+
+|--lib
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |- readme.txt --> THIS FILE
+|- platformio.ini
+|--src
+   |- main.c
+
+Then in `src/main.c` you should use:
+
+#include <Foo.h>
+#include <Bar.h>
+
+// rest H/C/CPP code
+
+PlatformIO will find your libraries automatically, configure preprocessor's
+include paths and build them.
+
+More information about PlatformIO Library Dependency Finder
+- http://docs.platformio.org/page/librarymanager/ldf.html

platformio.ini

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+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; http://docs.platformio.org/page/projectconf.html
+
+[env:nanoatmega328]
+platform = atmelavr
+board = nanoatmega328
+framework = arduino
+
+[platformio]
+lib_dir=~/Arduino/libraries

src/ledmask.cpp

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+#include "Arduino.h"
+
+#include <FastLED.h>
+
+#include "ledmask.h"
+
+/*
+   TODO: à adapter
+   LED attached from pin 13 to ground
+   pushbutton attached to pin 2 from +5V
+   10K resistor attached to pin 2 from ground
+*/
+
+/** FIRE2012 **/
+void Fire2012()
+{
+// Array of temperature readings at each simulation cell
+  static byte heat[LED_NUM];
+
+  // Step 1.  Cool down every cell a little
+    for( int i = 0; i < LED_NUM; i++) {
+      heat[i] = qsub8( heat[i],  random8(0, ((COOLING * 10) / LED_NUM) + 2));
+    }
+
+    // Step 2.  Heat from each cell drifts 'up' and diffuses a little
+    for( int k= LED_NUM - 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 < LED_NUM; j++) {
+      CRGB color = HeatColor( heat[j]);
+      int pixelnumber;
+      if( gReverseDirection ) {
+        pixelnumber = (LED_NUM - 1) - j;
+      } else {
+        pixelnumber = j;
+      }
+      leds[pixelnumber] = color;
+    }
+}
+
+
+void setup() {
+  Serial.begin(SERIAL_SPEED);
+  Serial.println("\nresetting");
+
+  /** BOUTON **/
+  // powering button
+  pinMode(POWERPIN, OUTPUT);
+  digitalWrite(POWERPIN, HIGH);
+  // initialize the pushbutton pin as an input:
+  pinMode(BUTTON_PIN, INPUT);
+  buttonState = 0;
+  delay(200);
+
+  /** LEDS **/
+  LEDS.addLeds<LED_CHIPSET,LED_PIN, LED_COLOR_ORDER>(leds, LED_NUM).setCorrection(TypicalSMD5050);
+  FastLED.setBrightness(LED_BRIGHTNESS);
+}
+
+void loop() {
+  /** BOUTON **/
+  EVERY_N_MILLISECONDS(500) {
+    buttonState = digitalRead(BUTTON_PIN);
+
+    if (buttonState == HIGH) {
+      Serial.println("HIGH");
+    } else {
+      Serial.println("LOW");
+    }
+  }
+
+  // Add entropy to random number generator; we use a lot of it.
+  random16_add_entropy(random());
+  Fire2012(); // run simulation frame
+  FastLED.show(); // display this frame
+  FastLED.delay(1000 / LED_FPS);
+}

src/ledmask.h

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+#define SERIAL_SPEED 115200
+
+/** BOUTON **/
+#define POWERPIN 2
+#define BUTTON_PIN 8
+
+int buttonState;
+
+/** LED **/
+#define LED_PIN     5
+#define LED_CHIPSET     WS2812B
+#define LED_COLOR_ORDER GRB
+#define LED_NUM 30
+#define LED_BRIGHTNESS  200
+#define LED_FPS 60
+
+const bool gReverseDirection = false;
+CRGB leds[LED_NUM];
+
+/** FIRE2012 **/
+#define COOLING  55
+#define SPARKING 120
+
+void setup();
+void loop();
+void Fire2012();