Math
constrain()
Constrains a number to be within a range.
constrain(x, a, b);
x is the number to constrain, all data types
a is the lower end of the range, all data types
b is the upper end of the range, all data types
The function will return:
x: if x is between a and b
a: if x is less than a
b: if x is greater than b
// EXAMPLE USAGE
sensVal = constrain(sensVal, 10, 150);
// limits range of sensor values to between 10 and 150