constrain()

[Math]

Description

Constrains a number to be within a range.

Syntax

constrain(x, a, b)

Parameters

x: the number to constrain, all data types a: the lower end of the range, all data types b: the upper end of the range, all data types

Returns

x: if x is between a and b

a: if x is less than a

b: if x is greater than b

Example Code

The code limits the sensor values to between 10 to 150.

sensVal = constrain(sensVal, 10, 150);    // limits range of sensor values to between 10 and 150
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