Use a Microvision ROV Bluetooth Scanner MS2200BT as a keyboard on OSX

rovwedge.rb

framework 'ScriptingBridge'
application = SBApplication.applicationWithBundleIdentifier("com.apple.systemevents")

while true do
  begin
    File.open('/dev/tty.Cordless-Spp', 'r') do |rov|
      while true do
        scan = rov.gets
        if scan
          if scan.size < 20 && scan.chomp =~ /\A\w+\z/
            application.keystroke scan, :using => 0
            puts scan
          end
        else
          break
        end
      end
    end
  rescue Errno::EBUSY
    sleep 0.5
    retry
  end
end

By any chance do you still use this ROV scanner on macOS? I'm trying to get my old one working as keyboard entry as well, and would love to know any pointers you have for doing so on a modern macOS version, please? Thanks!