Init

SimpleLed.cpp

@@ -0,0 +1,60 @@
+#include "SimpleLed.h"
+
+SimpleLed::SimpleLed(int pinRed, int pinGreen, int pinBlue) {
+  this->pin_red = pinRed;
+  this->pin_green = pinGreen;
+  this->pin_blue = pinBlue;
+}
+
+void SimpleLed::begin()
+{
+  pinMode(this->pin_red, OUTPUT);
+  pinMode(this->pin_green, OUTPUT);
+  pinMode(this->pin_blue, OUTPUT);
+
+  this->setColor(color);
+}
+
+void SimpleLed::setColor(const Color &color)
+{
+  this->color.red = color.red;
+  this->color.green = color.green;
+  this->color.blue = color.blue;
+
+  analogWrite(this->pin_red, 255 * color.red);
+  analogWrite(this->pin_green, 255 * color.green);
+  analogWrite(this->pin_blue, 255 * color.blue);
+}
+
+void SimpleLed::translateToColor(const Color &color, int duration_millis)
+{
+  const Color colorStart = {
+    this->color.red,
+    this->color.green,
+    this->color.blue
+  };
+
+  const Color colorDelta = {
+    color.red - this->color.red,
+    color.green - this->color.green,
+    color.blue - this->color.blue
+  };
+
+  long t_start = millis();
+  long t_end = t_start + duration_millis;
+    
+  while (millis() < t_end) {
+    float progress = (float)(millis() - t_start) / (float)duration_millis;
+
+    const Color colorCurrent = {
+      colorStart.red + colorDelta.red * progress,
+      colorStart.green + colorDelta.green * progress,
+      colorStart.blue + colorDelta.blue * progress
+    };
+
+    setColor(colorCurrent);
+  }
+
+  setColor(color);
+}
+

SimpleLed.h

@@ -0,0 +1,30 @@
+#ifndef SimpleLed_h
+#define SimpleLed_h
+
+#include "Arduino.h"
+
+typedef struct {
+  float red;
+  float green;
+  float blue;
+} Color;
+
+class SimpleLed
+{
+  int pin_red = 0;
+  int pin_green = 0;
+  int pin_blue = 0;
+
+  Color color = {0.0, 0.0, 0.0};
+
+  public:
+  SimpleLed(int pinRed, int pinGreen, int pinBlue);
+
+  void begin();
+
+  void setColor(const Color &color);
+
+  void translateToColor(const Color &color, int duration_millis);
+};
+
+#endif