Revision 0:80ebb233e295, committed 2013-05-24

Comitter:

fossum_13

Date:

Fri May 24 19:09:49 2013 +0000

Commit message:

Initial commit

Changed in this revision

diff -r 000000000000 -r 80ebb233e295 tricolor.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tricolor.cpp	Fri May 24 19:09:49 2013 +0000
@@ -0,0 +1,50 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ */
+#include "tricolor.h"
+
+#define ON 255
+#define OFF 0
+
+void Tricolor::Blue(void) {
+    SetLEDColor(OFF, OFF, ON);
+}
+
+void Tricolor::Green(void) {
+    SetLEDColor(OFF, ON, OFF);
+}
+
+void Tricolor::LEDOff(void) {
+    // Off == 1.0
+    _Red = 1.0;
+    _Green = 1.0;
+    _Blue = 1.0;
+    _on = false;
+}
+
+void Tricolor::LEDOn(void) {
+    _Red = _RedPwm;
+    _Green = _GreenPwm;
+    _Blue = _BluePwm;
+    _on = true;
+}
+
+void Tricolor::Red(void) {
+    SetLEDColor(ON, OFF, OFF);
+}
+
+void Tricolor::SetLEDColor(uint8_t red, uint8_t green, uint8_t blue) {
+    _RedPwm = 1.0 - ((float)red / 255);
+    _GreenPwm = 1.0 - ((float)green / 255);
+    _BluePwm = 1.0 - ((float)blue / 255);
+    
+    LEDOn();
+}
+
+void Tricolor::Toggle(void) {
+    if (_on) {
+        LEDOff();
+    } else {
+        LEDOn();
+    }
+}

diff -r 000000000000 -r 80ebb233e295 tricolor.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tricolor.h	Fri May 24 19:09:49 2013 +0000
@@ -0,0 +1,75 @@
+#ifndef TRICOLOR_H
+#define TRICOLOR_H
+
+#include "mbed.h"
+
+/** Tricolor LED driver
+ * 
+ * This is a reentrant LED controller
+ *
+ * @code
+#include "mbed.h"
+#include "tricolor.h"
+
+Tricolor led(p23, p24, p25); // red, green, blue
+
+int main() {
+    led.SetLEDColor(0, 100, 0); // Green @ about 40%
+    
+    while(1) {
+        wait(0.5);
+        led.Toggle();
+    }
+}
+ * @endcode
+ */
+class Tricolor
+{
+    public:
+        /** Basic Constructor
+         */
+        Tricolor(PinName r, PinName g, PinName b) : _Red(r), _Green(g), _Blue(b) {
+            SetLEDColor(0, 0, 0);
+        }
+        /** Color Constructor
+         *  Adds color values to constructor.
+         */
+        Tricolor(PinName r, uint8_t r_color,
+                 PinName g, uint8_t g_color,
+                 PinName b, uint8_t b_color) :
+                 _Red(r), _Green(g), _Blue(b) {
+            SetLEDColor(r_color, g_color, b_color);
+        }
+        /// Sets LED to blue (LED will be on afterwards)
+        void Blue(void);
+        /// Sets LED to green (LED will be on afterwards)
+        void Green(void);
+        /// Turns the LED off (saves color)
+        void LEDOff(void);
+        /// Restores LED to set color (color MUST be set beforehand)
+        void LEDOn(void);
+        /// Sets LED to red (LED will be on afterwards)
+        void Red(void);
+        /** Sets custom color for LED (LED will be on afterwards)
+         * @param red Amount of red color (0-255)
+         * @param green Amount of green color (0-255)
+         * @param blue Amount of blue color (0-255)
+         */
+        void SetLEDColor(uint8_t, uint8_t, uint8_t);
+        /// Toggles the LED on and off
+        void Toggle(void);
+        
+    private:
+        // LED Output
+        bool _on;       // Is the LED on
+        PwmOut _Red;    // LED red pin
+        PwmOut _Green;  // LED green pin
+        PwmOut _Blue;   // LED blue pin
+        
+        // LED Color
+        float _RedPwm;  // Amount of red
+        float _GreenPwm;// Amount of green
+        float _BluePwm; // Amount of blue
+};
+
+#endif
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