Bang when value changes from 0 to 1 and not the other way around

Howdy.

I’m a complete newbie when it comes to vvvv, but so far I’ve managed to create my first patch where waving to a camera results in midi out notes.

My problem is, I have this spread, consisting of zeroes. When activity is detected in an area, it changes to 1, sent through a Change node and a Bang. But, when it changes back, i also receive a Bang. Any way to prevent this?

Sorry if the question is stupid :-)

jbo.zip (4.4 kB)

TogEdge must be your friend

You sir, are my hero :-)

Thank you.