[PD] trigger with threshold

[cyrille henry]

hello,

sorry for my late answer.

I have to annonce that Charles Verron has made (for la-kitchen.fr) a few 
abstractions made for the traitment of sensors.

they can be found here :
http://www.la-kitchen.fr/download/kitchen_hardware/5_utilities/pure_data_abstractions.zip

this collection of abstraction where made to facilitated the use of 
sensor, assuming they send a constant rate data flow.
you'll find debounce, trigger, filter etc...

dependency : zexy and cyclone

cyrille


pix wrote:

> to stop multiple triggers when the value hovers around your trigger
> point, you might want to not register the next hit until the value has
> fallen below some lower threshhold. i've attached a patch that does
> this.
> 
> why did i do this? because i misread the question at first ;) .. but
> it's still useful.
> 
> pix.
> 
> On Fri, Jul 16, 2004 at 03:32:35PM -0500, Eric Skogen wrote:
> 
>>Hugo Dini wrote:
>>
>>
>>>Hi!
>>>I want to trigger drum samples with a P5 glove using midi.. My problem
>>>is probably simple to resolve but I had no luck for a week so here it
>>>is: I want to set a threshold value, let’s say 75, so that greater than
>>>75 only bangs once and can be retriggered only if it goes under
>>>threshold and back up. Most combination of objects that I tried banged
>>>more than once.  Thanks for any hint!
>>>
>>>
>>>
>>
>>hey, does that glove track position as well? personally, i always wanted 
>>to try that nintendo powerglove -> PC mod but i never got around to it...
>>
>>try using at [> 75] -> [change] -> [sel 1]
>>
>>see attached patch.
>>
>>e
>>
> 
> 
>>#N canvas 223 173 523 356 12;
>>#X obj 40 33 osc~ 1;
>>#X obj 40 63 expr~ ($v1 + 1) / 2;
>>#X obj 41 232 > 75;
>>#X obj 41 260 change;
>>#X obj 228 266 hsl 128 15 0 127 0 0 empty empty empty -2 -6 0 8 -262144
>>-1 -1 0 1;
>>#X obj 41 142 * 127;
>>#X obj 228 282 hsl 128 8 0 127 0 1 empty empty empty -2 -6 0 8 -233017
>>-1 -1 7500 1;
>>#X obj 41 290 sel 1;
>>#X obj 296 305 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
>>-1;
>>#X obj 41 120 snapshot~;
>>#X obj 52 83 loadbang;
>>#X obj 51 101 metro 20;
>>#X text 141 98 // this creates a value that oscillates between 0 and
>>127;
>>#X text 86 231 // check threshold only when changed;
>>#X text 86 291 // trigger;
>>#X connect 0 0 1 0;
>>#X connect 1 0 9 0;
>>#X connect 2 0 3 0;
>>#X connect 3 0 7 0;
>>#X connect 5 0 2 0;
>>#X connect 5 0 4 0;
>>#X connect 7 0 8 0;
>>#X connect 9 0 5 0;
>>#X connect 10 0 11 0;
>>#X connect 11 0 9 0;
> 
> 
> 
> ------------------------------------------------------------------------
> 
> #N canvas 0 0 450 300 10;
> #X floatatom 73 70 5 0 0 0 - - -;
> #X obj 138 133 > 70;
> #X obj 98 108 spigot;
> #X obj 150 171 sel 1;
> #X msg 192 123 0;
> #X msg 80 222 1;
> #X obj 75 187 sel 1;
> #X obj 161 226 print trigger;
> #X obj 70 164 < 50;
> #X connect 0 0 2 0;
> #X connect 0 0 8 0;
> #X connect 1 0 3 0;
> #X connect 2 0 1 0;
> #X connect 3 0 4 0;
> #X connect 3 0 7 0;
> #X connect 4 0 2 1;
> #X connect 5 0 2 1;
> #X connect 6 0 5 0;
> #X connect 8 0 6 0;