Programming strategies when using sensors

Programming Questions

georgerol..

Programming strategies when using sensors

in Programming Questions • 2 years ago

I am working on a project using sensors with Processing. In this specific instance, I am using potentiometers to allow users to input values to affect r,g,b color changes. I am using the Arduino board and rotary or slide pots, but the questions is, I think, more general.

When I run the sketch, there is a period of time before the sensors actually "kick in" during which the calls to the sensors produce 0, 0, 0. Once the sensors "kick in" the values (0-1023) are returned correctly.

What are good strategies to throw away the initial 0, 0, 0s returned until the sensors "kick in" with "real" values that I want to use?

George Roland

MacBook Pro 15" 2.4GHz Intel Core i5, QuickTime v.10.0
Processing v. 1.2.1

Replies(1)

PhiLho

Re: Programming strategies when using sensors

2 years ago

You need a boolean, set to false initially: while you get a value of zero AND the boolean is false, you reject the values. On the first non-zero value, set the boolean to true: now, while the boolean is true, you accept the values, be them zero or more.