diff --git a/deploy/roles/collectd/templates/leds.py b/deploy/roles/collectd/templates/leds.py
index 27699f4..2d3ab9c 100644
--- a/deploy/roles/collectd/templates/leds.py
+++ b/deploy/roles/collectd/templates/leds.py
@@ -1,78 +1,78 @@
 #!/usr/bin/env python2
 
 import collectd
 import serial
 import subprocess
 from math import floor
 
 DEBUG = 1
-PORT = '/dev/ttyS0'
+PORT = '/dev/ttyS1'
 SPEED = 9600
 CORES = int(subprocess.check_output('nproc'))
 
 LEDS_NUMBER = 8 # number of leds in a column
 LEDS_MAX = 100
 LEDS_NOCOL = '0 0 0 '
 
 FAN_MAX = 255
 fan_last = 0
 
 TEMP_LOW = 40
 temp_last = 0
 
 COLORS = [
     '0 %d %d ' # cyan
     '%d 0 %d ',# magenta
     '%d %d 0 ',# yellow
     '%d 0 0 ', # red
     '0 %d 0 ', # green
     '0 0 %d ', # blue
 ]
 
 hosts = set()
 
 def debug(msg):
     if DEBUG:
         f = open('/tmp/debug', 'a+')
         f.write(str(msg) + "\n")
         f.close()
 
 def color(value, index):
     nb = len(COLORS[index].split('%d')) - 1
     return COLORS[index] % tuple([value]*nb)
 
 def write(vl, data=None):
     global hosts
 
     line = ''
     hosts.add(vl.host)
     index = list(hosts).index(vl.host)
 
     if vl.plugin == 'thermal':
         temp_last = max(temp_last, values[0])
         if temp_last > TEMP_LOW:
             line += 'f 50'
         pass
 
     if vl.type == 'if_octets':
         pass
 
     if vl.type == 'load':
         load1 = vl.values[0]
         load1 = load1 if load1 <= CORES else CORES
         LEDS_ON = LEDS_NUMBER / CORES * load1
         LEDS_TR = 0 if LEDS_ON==0 else LEDS_ON - int(floor(LEDS_ON))
         LEDS_OFF = LEDS_NUMBER - LEDS_ON
         line += "L%d %s" % \
             (index, color(LEDS_MAX, index) * int(floor(LEDS_ON)) \
                   + color(LEDS_MAX * LEDS_TR, index) \
                   + LEDS_NOCOL * int(floor(LEDS_OFF)))
         debug(line.strip())
 
     if line != '':
         ser = serial.Serial(PORT, SPEED)
         ser.write(line.strip() + "\n")
         ser.close()
 
 collectd.register_write(write);