def get_version(self):
        """Get blink(1) firmware version
        """
        if ( self.dev == None ): return ''
        buf = [REPORT_ID, ord('v'), 0, 0, 0, 0, 0, 0, 0]
        self.write(buf)
        time.sleep(.05)
        version_raw = self.read()
        version = (version_raw[3] - ord('0')) * 100 + (version_raw[4] - ord('0'))
        return str(version)