Hi thank you for reply. When I connected same as author advised there was not any connection occurrence. When I changed Rx and Tx ports on the device. odd characters were coming continuously. Here is the pic:
From left to right.
1. 5V from converter (where 1 on the board)
2. Tx port.
3. Rx port.
4. Ground

And here is the device.
[Image violates Posting Guidelines for size - MODERATOR]
When I change Rx and Tx ports on the converter odd characters are occurring.
What is correct connection config?
Mine is:
Baud rate 9600
Data bits 8
Stop bits 1
Parity None.
May be I did something wrong.