Diff: Shiftbrite.h

Revision:

0:7fe3c940e4b5

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Shiftbrite.h	Thu Jun 25 14:35:52 2015 +0000
@@ -0,0 +1,37 @@
+#include "mbed.h"
+
+//Setup a new class for a Shiftbrite RGB LED module
+class Shiftbrite
+{
+public:
+    Shiftbrite(PinName pin_e, PinName pin_l, PinName pin_do, PinName pin_di, PinName pin_clk);
+    void write(int red, int green, int blue);
+
+private:
+//class sets up the pins
+    DigitalOut _pin_e;
+    DigitalOut _pin_l;
+    SPI _spi;
+};
+
+Shiftbrite::Shiftbrite(PinName pin_e, PinName pin_l, PinName pin_do, PinName pin_di, PinName pin_clk)
+    : _pin_e(pin_e), _pin_l(pin_l), _spi(pin_do, pin_di, pin_clk)
+{
+ // spi set up
+    _pin_e=0;
+    _pin_l=0;
+    _spi.format(16,0);
+    _spi.frequency(500000);
+}
+
+void Shiftbrite::write(int red, int green, int blue)
+{
+    unsigned int low_color=0;
+    unsigned int high_color=0;
+    high_color=(blue<<4)|((red&0x3C0)>>6);
+    low_color=(((red&0x3F)<<10)|(green));
+    _spi.write(high_color);
+    _spi.write(low_color);
+    _pin_l=1;
+    _pin_e=0;
+}