why 2 values? does it provide x & y ?

what do you need to detect? an x or y change?

I could do something for you but I'd need some infos..

I did that:

I hope it could be a solution for you. if one of the two values change, it fires the 2 current values.

You could use [bucket] to compare the current value with the prious one using an [if]. There's a simple example below. The [lbyl] object from CNMAT might be useful too. For data smoothing have a look towards the bottom of this thread for a number of different approaches.

lh

thanks much guys. Luke solution was what I was looking for! danke! for julien: from an accelerometer i can have x, y and z values "isolated" and use them for different things. sensor's output, being analogic, can be very irregular and give you a stream of values you don't really need: that's the reason why it's useful to "filter" the output and use it only if a difference threshold is obtained: that is exactly what luke patch is doing. again: thanks all!

ok great ! I misunderstood the question. The important thing: you found your solution :)