Please help as I can connect one biometric sensor with arduino mega

Please help as I can connect one biometric sensor with arduino mega? I saw several examples with the procedure arduino one did give me an answer that there is no connection there is agredece in advance :( :(

An error referring to “no connection” probably means that your Arduino is not properly connected to your computer. Your translation makes your question difficult to understand. Please provide more details as described in the “How to use this forum” post.

Hi, Welcome to the forum.

Please read the first post in any forum entitled how to use this forum. http://forum.arduino.cc/index.php/topic,148850.0.html then look down to item #7 about how to post your code. It will be formatted in a scrolling window that makes it easier to read.

Thanks.. Tom... :)