lib/arduino_firmata/arduino.rb in arduino_firmata-0.2.2 vs lib/arduino_firmata/arduino.rb in arduino_firmata-0.2.3

@@ -83,11 +83,11 @@
 
     def reset
       write SYSTEM_RESET
     end
 
-    def sysex(command, data)
+    def sysex(command, data=[])
       ## http://firmata.org/wiki/V2.1ProtocolDetails#Sysex_Message_Format
       raise ArgumentError, 'command must be Number' unless command.kind_of? Fixnum
       raise ArgumentError, 'data must be 7bit-Number or Those Array' unless [Fixnum, Array].include? data.class
 
       write_data = data.kind_of?(Array) ? data : [data]
@@ -174,10 +174,10 @@
 
         if @parsing_sysex
           if input_data == END_SYSEX
             @parsing_sysex = false
             sysex_command = @stored_input_data[0]
-            sysex_data = @stored_input_data[1..@sysex_bytes_read]
+            sysex_data = @stored_input_data[1...@sysex_bytes_read]
             emit :sysex, sysex_command, sysex_data
           else
             @stored_input_data[@sysex_bytes_read] = input_data
             @sysex_bytes_read += 1
           end