#define HIGH 1
#define LOW 0
#define INPUT 0
#define INPUT_PULLUP 2
#define OUTPUT 1
#define A0 0
#define A1 1
#define A2 2
#define A3 3
#define A4 4
#define A5 5
#define DEC 10
#define HEX 16
#define OCT 8
#define BIN 2

#define PI 3.1415926535897932384626433832795
#define HALF_PI 1.5707963267948966192313216916398
#define TWO_PI 6.283185307179586476925286766559
#define DEG_TO_RAD 0.017453292519943295769236907684886
#define RAD_TO_DEG 57.295779513082320876798154814105
#define EULER 2.718281828459045235360287471352

#define SERIAL  0x0
#define DISPLAY 0x1

#define LSBFIRST 0
#define MSBFIRST 1

#define CHANGE 1
#define FALLING 2
#define RISING 3

#include "Serial.h"
struct SerialClass Serial;

typedef bool boolean;
typedef unsigned char byte;
typedef unsigned short word;

long pulseIn(int pin, int value);
long pulseIn(int pin, int value, long timeOut);

void shiftOut(int dataPin, int clockPin, int bitOrder, unsigned char val);
unsigned char shiftIn(int dataPin, int clockPin, int bitOrder);

int abs(int x);
long abs(long x);
double abs(double x);

long map(long x, long in_min, long in_max, long out_min, long out_max);

long constrain(long x, long a, long b);
double constrain(double x, double a, double b);

double max(double x, double y);
long max(long x, long y);
double min(double x, double y);
long min(long x, long y);

double sq(double x);
double sq(long x);

unsigned char lowByte(long w);
unsigned char highByte(long w);

void bitSet(long* value, int bit);
void bitSet(int* value, int bit);
void bitSet(short* value, int bit);
void bitSet(char* value, int bit);

long bitClear(long value, int bit);
int bitClear(int value, int bit);
short bitClear(short value, int bit);
char bitClear(char value, int bit);

void bitToggle(long* value, int bit);
void bitToggle(int* value, int bit);
void bitToggle(short* value, int bit);
void bitToggle(char* value, int bit);

void bitWrite(long* value, int bit, int bitvalue);
void bitWrite(int* value, int bit, int bitvalue);
void bitWrite(short* value, int bit, int bitvalue);
void bitWrite(char* value, int bit, int bitvalue);

long bit(long b);

long bitRead(long value, int bit);
int bitRead(int value, int bit);
short bitRead(short value, int bit);
char bitRead(char value, int bit);

bool INTERRUPTS_DISABLED;

void interrupts();
void noInterrupts();