Add two shortcuts to turn all on/off.

emori.rb

@@ -10,5 +10,15 @@ abort unless File.exists?('/dev/ttyUSB0')
 
 # Create the serial connection and send the given command.
 SerialPort.open('/dev/ttyUSB0', 9600, 8, 1, SerialPort::NONE) do |s|
+  command = ARGV.join(' ')
+  
+  if command == 'on' or command == 'off'
+    puts 'all ' + command + '...'
+    ['a', 'c', 'c', 'd'].each do |port|
+      s.puts(command + ' ' + port)
+    end
+    s.puts('led ' + command)
+  else
     s.puts(ARGV.join(' '))
   end
+end