Merge pull request #10 from BorisWild/master

Now it works with esp8266

CapacitiveSensor.h

@@ -93,15 +93,15 @@
 #define DIRECT_WRITE_HIGH(base, mask)   ((*(base+8+2)) = (mask))          //LATXSET + 0x28
 
 #elif defined(ARDUINO_ARCH_ESP8266)
-#define PIN_TO_BASEREG(pin)             (portOutputRegister(digitalPinToPort(pin)))
-#define PIN_TO_BITMASK(pin)             (digitalPinToBitMask(pin))
+#define PIN_TO_BASEREG(pin) ((volatile uint32_t*) GPO)
+#define PIN_TO_BITMASK(pin) (1 << pin)
 #define IO_REG_TYPE uint32_t
 #define IO_REG_ASM
-#define DIRECT_READ(base, mask)         (((*(base+6)) & (mask)) ? 1 : 0)    //GPIO_IN_ADDRESS
-#define DIRECT_MODE_INPUT(base, mask)   ((*(base+5)) = (mask))              //GPIO_ENABLE_W1TC_ADDRESS
-#define DIRECT_MODE_OUTPUT(base, mask)  ((*(base+4)) = (mask))              //GPIO_ENABLE_W1TS_ADDRESS
-#define DIRECT_WRITE_LOW(base, mask)    ((*(base+2)) = (mask))              //GPIO_OUT_W1TC_ADDRESS
-#define DIRECT_WRITE_HIGH(base, mask)   ((*(base+1)) = (mask))              //GPIO_OUT_W1TS_ADDRESS
+#define DIRECT_READ(base, mask) ((GPI & (mask)) ? 1 : 0) //GPIO_IN_ADDRESS
+#define DIRECT_MODE_INPUT(base, mask) (GPE &= ~(mask)) //GPIO_ENABLE_W1TC_ADDRESS
+#define DIRECT_MODE_OUTPUT(base, mask) (GPE |= (mask)) //GPIO_ENABLE_W1TS_ADDRESS
+#define DIRECT_WRITE_LOW(base, mask) (GPOC = (mask)) //GPIO_OUT_W1TC_ADDRESS
+#define DIRECT_WRITE_HIGH(base, mask) (GPOS = (mask)) //GPIO_OUT_W1TS_ADDRESS
 
 #elif defined(__SAMD21G18A__)
 // runs extremely slow/unreliable on Arduino Zero - help wanted....