Modified Hardware with patch file from timschuerewegen, which addresses isues with the hardware Wire constructor

STM32F1XX/libraries/Wire/HardWire.cpp

@@ -57,10 +57,13 @@ HardWire::HardWire(uint8 dev_sel, uint8 flags) {
         ASSERT(1);
     }
     dev_flags=flags;
-    i2c_master_enable(sel_hard, flags);
 }
 
 HardWire::~HardWire() {
     i2c_disable(sel_hard);
     sel_hard = 0;
 }
+
+void HardWire::begin(uint8 self_addr) {
+    i2c_master_enable(sel_hard, dev_flags);
+}

STM32F1XX/libraries/Wire/HardWire.h

@@ -64,6 +64,8 @@ public:
      * Disables the I2C device and remove the device address.
      */
     ~HardWire();
+
+    void begin(uint8 = 0x00);
 };
 
 #endif // _HARDWIRE_H_