diff --git a/test.rb b/test.rb
index 9267186..890a3cd 100755
--- a/test.rb
+++ b/test.rb
@@ -3,7 +3,7 @@
 # ruby: 1.9
 require 'serialport'
 
-atmolight = SerialPort.open("/dev/ttyUSB0",{ baud: 19200, databits: 8, parity: SerialPort::NONE, stop_bit: 1, flow_control: SerialPort::NONE})
+atmolight = SerialPort.open("/dev/ttyUSB0",{ baud: 38400, databits: 8, parity: SerialPort::NONE, stop_bit: 1, flow_control: SerialPort::NONE})
 
 # reset arduino
 atmolight.dtr = 1
@@ -12,49 +12,18 @@ atmolight.dtr = 0
 sleep 0.5
 atmolight.flush_output
 atmolight.flush_input
-atmolight.baud = 19200
+atmolight.baud = 38400
   
 puts "waiting for welcome message"
 puts atmolight.gets
-
-puts "sending test commands"
-commands = [
-  "\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # start bootloader
-  "\x00\x87\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # start application
-  "\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x00", # sync sequence
-  "\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x1b\x00", # too long sync sequence
-  "\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" # unhandled command
-]
-commands.each do |command|
-  sleep 0.5
-  atmolight.write command
-  atmolight.flush_output
-end
-
-# test all LEDs with red
-puts "cycle LEDs"
-50.times do |i|
-  atmolight.write [i,0x01,0x00,0x00,0x0f,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00].pack("C*") # set LED to red
-  atmolight.flush_output
-  atmolight.write [0x00,0x08,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00].pack("C*") # flush
-  atmolight.flush_output
-  sleep 0.25
-  atmolight.write [i,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00].pack("C*") # switch off LED
-  atmolight.flush_output
-end
-
-# increase white
+  
 puts "white fading"
-atmolight.write "\x00\x87\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
-atmolight.flush_output
-sleep 0.5
 white = 0
 while true do
   start = Time.now
-  51.times do |i|
-    atmolight.write [i,0x01,0x00,0x00,white,white,white,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00].pack("C*") # set LED to red
-    atmolight.flush_output
-  end
-  white = (white+10)%256
+  atmolight.write ([0xff,0x00,0x00,0x0f]+[white]*15).pack("C*") # set LED to red
+  atmolight.flush_output
+  #sleep 0.3
+  white = (white+1)%256
   puts "set white #{white} in #{Time.now-start} s"
 end