Diff: LightString.h

Revision:

0:6da5625a6946

Child:

2:965388eecf95

Child:

3:0ac64c4ca40f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LightString.h	Thu Dec 29 01:59:53 2011 +0000
@@ -0,0 +1,95 @@
+//
+// Tools for talking to the CuriLight string
+//
+
+#ifndef __LIGHTSTRING__
+#define __LIGHTSTRING__
+
+#ifndef MBED_H
+#include "mbed.h"
+#endif
+
+#ifndef __LIGHTSNOOP__
+#include "LightSnoop.h"
+#endif
+
+#include <vector>
+
+class LightString
+{
+public:
+
+    // Note: We rely on the default serial configuration of 9600 8N1,
+    // this matches the CuriLights serial parameters.
+    LightString( PinName pin, int numLights )
+     : fPort( pin, NC ), fUSBPort( NC, USBRX ), fSnoop( numLights )
+    {
+        fNumLights = numLights;
+    }
+
+    // This sends an initialization to the string and configures it.
+    // If numLights is non-zero, the length of the light string is reset
+    void InitLights( int numLights = 0 );
+    
+    int GetNumLights() const { return fNumLights; }
+    
+    // The light code uses a "decimal RGB" notation, where
+    // the color is specified as a three digit number, with each
+    // digit from 0..7.  The first (hundreds) digit specifies
+    // red, the second (tens) digit specifies green, and
+    // the last (ones) blue.  So, for example, "700" specifies
+    // red, and "755" is pink.
+    
+    void SetAllLights( int color );
+    
+    // Set a single light (id == the Nth light in the string, starting from zero)
+    void SetOneColor( int color, uint8_t id );
+    
+    // Set each light to the value in the corresponding array.
+    void SetColors( const vector<int>& colorList );
+    
+    void Off()      { SetAllLights( 0 ); }
+    
+    void Red()      { SetAllLights( 700 ); }
+    
+    void Green()    { SetAllLights( 70 ); }
+    
+    void Blue()     { SetAllLights( 7 ); }
+    
+    void Ouch()     { SetAllLights( 777 ); }
+    
+    // Attaches the USB port to the light port, so
+    // data is passed straight through from the host to the lights.
+    void AttachUSBSerial();
+    
+    LightSnoop * Snoop() { return &fSnoop; }
+    
+private:
+    void sendCommand1( uint8_t ch );
+    void sendCommand2( uint8_t ch1, uint8_t ch2 );
+    void sendCommand3( uint8_t ch1, uint8_t ch2, uint8_t ch3 );
+    
+    void HandleUSBToLights();
+    
+    // Note the top red bit is stripped off to fit in the byte, other
+    // code must manually add it back to the top bit if the light ID
+    uint8_t colorByte( uint8_t r, uint8_t g, uint8_t b )
+    {   return ((r & 3) << 6) | (g << 3) | b;  }
+    
+    uint8_t colorByte( int rgb, uint8_t& redBit )
+    {   redBit = ((rgb / 100) >> 2) << 7;
+        return colorByte( rgb/100, (rgb % 100) / 10, rgb % 10 );
+    }
+    
+/*    uint8_t color( unsigned char * rgb, uint8_t& redBit )
+    {
+        redBit = ((rgb[0] - '0') >> 2) << 7;
+        return color( rgb[0] - '0', rgb[1] - '0', rgb[2] - '0' );
+    }
+*/    
+    Serial fPort;
+    Serial fUSBPort;
+    int fNumLights;
+    LightSnoop fSnoop;
+};
+#endif