diff --git a/chch-power.py b/chch-power.py
index 654aa01..29dcd31 100644
--- a/chch-power.py
+++ b/chch-power.py
@@ -1,5 +1,6 @@
 import pifacedigitalio
 import time
+from subprocess import call
 
 button_count = 8
 longpress_delay = 0.4
@@ -35,8 +36,7 @@ def switch_longpressed(event):
     elif pin_shortpress_count[event.pin_num] == 1:
         event.chip.output_pins[event.pin_num].toggle()
     elif pin_shortpress_count[event.pin_num] == 2:
-        for i in range(button_count):
-            event.chip.output_pins[i].turn_on()
+        call(["/root/chch-power/ligth.sh"])
 
 def switch_verylongpressed(event):
     shortpress_delay = pin_last_rise_date[event.pin_num] - pin_last_shortpress[event.pin_num]
diff --git a/ligth.sh b/ligth.sh
new file mode 100755
index 0000000..a5cc55c
--- /dev/null
+++ b/ligth.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+
+TMPFILE=/tmp/light_state
+touch $TMPFILE
+LIGHT_STATE=$(cat $TMPFILE)
+[ -z "$LIGHT_STATE" ] && LIGHT_STATE=0
+
+STATE_0="a\x00\x03\x00\x00\x00"
+STATE_1="a\x00\x03\xff\xff\xff"
+STATE_2="n\x00\x02\x01\x00"
+
+LIGHT_STATE=$(( $LIGHT_STATE+1 ))
+case $LIGHT_STATE in
+	0)
+	  STATE=$STATE_0
+	  ;;
+	1)
+	  STATE=$STATE_1
+	  ;;
+	2)
+	  STATE=$STATE_2
+	  ;;
+	*)
+	  STATE=$STATE_0
+	  LIGHT_STATE=0
+	  ;;
+esac
+
+echo -en $STATE | nc -w1 172.23.92.15 49152
+echo $LIGHT_STATE > $TMPFILE