Macro 

Description 

bit 

Computes the value of the specified bit (bit 0 is 1, bit 1 is 2, bit 2 is 4, etc.). 

bitClear 

Clears (writes a 0 to) a bit of a numeric variable. 

bitRead 

Reads a bit of a number. 

bitSet 

Sets (writes a 1 to) a bit of a numeric variable. 

bitWrite 

Writes a bit of a numeric variable. 

highByte 

Extracts the high-order (leftmost) byte of a word (or the second lowest byte of a larger data type). 

lowByte 

Extracts the high-order (leftmost) byte of a word (or the second lowest byte of a larger data type). 

abs 

Computes the absolute value of a number. 

constrain 

Constrains a number to be within a range. 

max 

Calculates the maximum of two numbers. 

min 

Calculates the minimum of two numbers.