This library works with only my pcb

Fork of Adafruit_LEDBackpack by Luiz Hespanha

Revision:
2:88646e1763c6
Parent:
1:f066d5347c60
--- a/Adafruit_LEDBackpack.h	Fri Aug 16 15:44:44 2013 +0000
+++ b/Adafruit_LEDBackpack.h	Sun May 03 01:15:52 2015 +0000
@@ -53,7 +53,7 @@
   void writeDisplay(void);
   void clear(void);
 
-  uint16_t displaybuffer[8]; 
+  uint16_t displaybuffer[16]; 
 
   void init(uint8_t a);
 
@@ -68,7 +68,7 @@
  public:
   Adafruit_8x8matrix(I2C *i2c);
 
-  void drawPixel(int16_t x, int16_t y, uint16_t color);
+  virtual void drawPixel(int16_t x, int16_t y, uint16_t color);
 
  private:
 };
\ No newline at end of file