====== LED control > pd ====== 

<code java>
#N canvas 574 112 211 210 10;
#X obj 9 166 comport 9600;
#X msg 9 13 devices;
#X msg 74 64 close;
#X obj 20 41 hradio 15 1 0 6 empty empty empty 0 -8 0 10 -203904 -1
-1 0;
#X obj 97 93 hsl 80 20 0 255 0 0 empty empty empty -2 -8 0 10 -257985
-1 -1 0 1;
#X msg 95 118 0;
#X msg 153 119 255;
#X msg 20 64 open \$1;
#X connect 1 0 0 0;
#X connect 2 0 0 0;
#X connect 3 0 7 0;
#X connect 4 0 0 0;
#X connect 5 0 0 0;
#X connect 6 0 0 0;
#X connect 7 0 0 0;
</code>