Variables

void

boolean (0, 1, false, true)

char (e.g. ‘a’ -128 to 127)

unsigned char (0 to 255)

byte (0 to 255)

int (-32,768 to 32,767)

unsigned int (0 to 65535)

word (0 to 65535)

long (-2,147,483,648 to 2,147,483,647) unsigned long (0 to 4,294,967,295)

float (-3.4028235E+38 to 3.4028235E+38)

double (currently same as float)

sizeof(myint) // returns 2 bytes