Step – 3: Note down the “COM port number” as we will require it. If you are not aware about accessing device manager then follow this post. Step – 2: Open device manager and check for COM ports, it get assigned a COM port or not. Step – 1: Connect your device with your system through RS-232 cable or USB-to-Serial adapter and check whether it’s connected successfully or not. Now you have to follow below steps to communicate with your device: If you want to use Putty than download this file from here. If you want to use Hyper terminal than you have to download this file. In Windows, serial port named as COM port. This driver makes a virtual serial port in your system. If your system does not have any serial port, you can still use a USB-to-Serial adapter When you buy a USB-to-Serial port adapter you will get a driver for it as well. Putty is a great and free tool and available for both Windows and Linux platforms. How ever you can still use Hyper terminal in Windows 7 as well as you can use other freely available serial communication utilities like Putty.

In the old days, Windows used to be provided Hyper terminal but now from Windows Vista they don’t provide such a tool, could not understand the reason though. If you are performing these tasks on either Windows or Linux then you will requires some program that can communicate with your hardware and system. Some times you need to access serial port of your PC/LAPTOP to perform some actions like if you want to connect a GSM modem or if you are an Embedded systems programmer then to access program or interface your micro-controllers to your system. Keywords: Serial port communication in Windows 7 using Hyper-terminal and Putty, Putty, Hyper terminal in Windows 7

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