lpc21isp writer script for folder action

(*
 lpc21isp writer script for folder action
 
 Requirement:
  lpc21isp programmer. http://lpc21isp.sourceforge.net/
 
 Instructions:
 1. Adjust 'serialport' and 'lpcbin' to your environment
 2. save this file as '~/Library/Scripts/Folder\ Action\ Scripts/write lpc.scpt
 3. Attach this script to 'download folder' as a folder action script
 4. Have fun.
*)

on adding folder items to this_folder after receiving added_items
	set serialport to "/dev/cu.usbserial*" -- change me
	set lpcbin to "/opt/local/bin/lpc21isp " -- change me
	try
		tell application "Finder"
			--get the name of the folder
			set the folder_name to POSIX path of this_folder
			set msg to ""
			repeat with aFile in added_items
				set file_name to name of aFile
				if file_name ends with ".bin" then
					set msg to file_name
				end if
			end repeat
		end tell
		if msg is equal to "" then
			quit me -- not a bin file
		end if
		set full_path to POSIX path of this_folder & file_name
		set dev to do shell script "ls " & serialport
		set msg to "Would you like to write " & return & full_path & return & "to" & dev
		display dialog the msg buttons {"Yes", "No"} default button 2 with icon caution
		
		set the user_choice to the button returned of the result
		
		if user_choice is "Yes" then
			set lpccmd to lpcbin & " -control -bin '" & full_path & "' " & dev & " 115200 48000"
			--    write to LPC with Terminal
			-- tell application "Terminal"
			--     do script lpccmd
			-- end tell
			-- write to LPC with shell
			do shell script lpccmd
		end if
	end try
end adding folder items to