Revision 3:67e68c46daef, committed 2017-06-14

Comitter:

koengroener

Date:

Wed Jun 14 20:37:31 2017 +0000

Parent:

2:735bb1b9cfc2

Commit message:

Added LEDArray class, for a more simplistic way of communcation with the LED strip

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LEDArray.cpp	Wed Jun 14 20:37:31 2017 +0000
@@ -0,0 +1,42 @@
+#include "LEDArray.h"
+
+LEDArray::LEDArray(PinName wirePin, ColorByteOrder byteOrder, unsigned int numberOfLEDs, float t0h_us, float t0l_us, float t1h_us, float t1l_us, float tReset_us) : _ledBus(wirePin, byteOrder, t0h_us, t0l_us, t1h_us, t1l_us, tReset_us)
+{
+    initialize(numberOfLEDs);
+}
+
+LEDArray::LEDArray(PinName wirePin, ColorByteOrder byteOrder, unsigned int numberOfLEDs) : _ledBus(wirePin, byteOrder, 0.35, 0.8, 0.7, 0.6, 50)
+{
+    initialize(numberOfLEDs);
+} 
+
+LEDArray::~LEDArray()
+{
+}
+
+void LEDArray::initialize(unsigned int numberOfLEDs)
+{
+    _numberOfLEDs = numberOfLEDs;
+    _leds = new Color*[_numberOfLEDs];
+    for(uint32_t i = 0; i < _numberOfLEDs; ++i)
+    {
+        _leds[i] = new Color(0,0,0);    
+    }    
+}
+
+void LEDArray::setPixelColor(unsigned int pixel, uint8_t r, uint8_t g, uint8_t b)
+{
+    _leds[pixel]->red = r;
+    _leds[pixel]->green = g;
+    _leds[pixel]->blue = b;
+}
+
+void LEDArray::setPixelColor(unsigned int pixel, Color& color)
+{
+    setPixelColor(pixel, color.red, color.green, color.blue);    
+}
+
+void LEDArray::show()
+{
+    _ledBus.write(_leds, _numberOfLEDs);    
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LEDArray.h	Wed Jun 14 20:37:31 2017 +0000
@@ -0,0 +1,70 @@
+#ifndef _LED_ARRAY_PIN_H_
+#define _LED_ARRAY_PIN_H_
+
+#include "mbed.h"
+#include "LEDBus.h"
+
+/**
+    The LEDArray class allows for a bit more simplistic way of communication with an addressable LED strip
+*/
+class LEDArray
+{
+
+private:
+    LEDBus _ledBus;
+    Color** _leds;
+    unsigned int _numberOfLEDs;
+    
+    void initialize(unsigned int numberOfLEDs);
+protected:
+
+public:
+
+
+    /**
+    *   Initializes the addressable led strip
+    *
+    *   @param wirePin - The output pin on wich the addressable leds are connected
+    *   @param byteOrder - The order in wich the r, g and b bytes are expected
+    *   @param numberOfLEDs - The number of leds in this strip
+    *   @param t0h_us - T0H as found in the addressable led datasheet. The duration, in microseconds, the pin will stay high for sending a 0 bit
+    *   @param t0l_us - T0L as found in the addressable led datasheet. The duration, in microseconds, the pin will stay low for sending a 0 bit
+    *   @param t1h_us - T1H as found in the addressable led datasheet. The duration, in microseconds, the pin will stay high for sending a 1 bit
+    *   @param t1l_us - T1L as found in the addressable led datasheet. The duration, in microseconds, the pin will stay low for sending a 1 bit
+    *   @param tReset_us - TReset as found in the addressable led datasheet. The duration, in microsecond, the pin will stay low for sending a reset command,
+    */
+    LEDArray(PinName wirePin, ColorByteOrder byteOrder, unsigned int numberOfLEDs, float t0h_us, float t0l_us, float t1h_us, float t1l_us, float tReset_us);
+
+    /**
+    *   Initializes the addressable led array with default values (taken from WS2812 datasheet): 
+    *   T0H = 0.35, 
+    *   T0L = 0.8,
+    *   T1H = 0.7,
+    *   T1L = 0.6,
+    *   TReset = 50 
+    *
+    *   @param wirePin - The output pin on wich the addressable leds are connected
+    *   @param byteOrder - The order in wich the r, g and b bytes are expected
+    *   @param numberOfLEDs - The number of leds in this strip
+    */
+    LEDArray(PinName wirePin, ColorByteOrder byteOrder, unsigned int numberOfLEDs);
+
+    ~LEDArray();
+
+    /**
+    *   Sets the color of the given pixel (index) with r, g and b values
+    */
+    void setPixelColor(unsigned int pixel, uint8_t r, uint8_t g, uint8_t b);
+    
+    /**
+    *   Sets the color of the given pixel (index) with a given color.
+    */
+    void setPixelColor(unsigned int pixel, Color& color);
+    
+    /**
+    *   Sends all configured colors to the actual led strip, this method is required to call in order to update the LEDs
+    */
+    void show();
+};
+
+#endif
\ No newline at end of file

--- a/LEDBus.h	Wed Jun 14 19:51:33 2017 +0000
+++ b/LEDBus.h	Wed Jun 14 20:37:31 2017 +0000
@@ -15,7 +15,7 @@
 
 
 /**
-    LEDBus
+    The LEDBus class allows for 'low' level communication to an addressable LED bus/strip 
 */
 class LEDBus
 {