The latest PuTTY version can be downloaded here:
http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html

Windows Vista and Windows 7 only support the private edition of HyperTerminal. Windows 7 does not even ship with HyperTerminal. The private edition is NOT FREE for commercial use. Its license requires you purchase the application if used commercially, with the cost of the application being US$59.99, as listed on Hilgraeve’s website.

To use PuTTY for your serial COM connections, follow these steps:

1. Figure out the COM port you’ll be using.
2. Run PuTTY.
3. Switch the Connection Type to Serial.
4. Edit the Serial Line to match the COM port you want to use.
5. Edit the Speed to match the BAUD Rate you want to use.
6. Select the Serial category from the menu on the left.
7. Make sure all of the settings are correct (the settings in the screenshot are what I used for my session, yours could look different depending on what you’re connecting to).
8. Select the Open button to start the session.

Your connection should now be fully functional.

If you find yourself using PuTTY quite extensively, you could save settings to different profiles for fast future usage. To create a profile for your settings:

1. Make sure you have the settings you require.
2. Enter a profile name under Saved Sessions.
3. Click the Save button.

On your next PuTTY session, you can load your profile by selecting it from the list and clicking the Load button.

Logging is also a great feature that PuTTY provides. It lets you output your entire session to a log file. To enable logging, follow these steps before you open your connection:

1. Select Logging from the category list on the left.
2. Choose your desired logging method (All session output, printable output, etc…)
3. Enter a file name.
4. Select the file handling settings.
5. Open your connection.

1. Hello,
   Your info is very helpful.
   Thanks.

   Bam

2. my serial putty configuration to an ubuntu system has wrong output: e.g. ýûþþüÌþüis as keyboardoutput. Is there anything to change to get readable output ?

   • Try differents baud rates.

3. SimpleTerm Gold – Stater Lite
   is a free alternative and is much easier for COM port or RS232, TTL based development work.

4. thanks for the info
   I am trying to program a bluetooth adaptar using Putty, having done the configuration as above, i couldn’t get any response(after writing the command(using Attention (AT) command)

5. This is great stuff. Not quite putty in my hands tho’. I went to full screen but had no idea how to get out of it. I tried right click – nothing, esc – also nothing

6. Thanks for such a useful information. I have putty software long back but i don’t know how to use thanks for information.

7. Thx, it’s useful and you made it easy :)

8. Doesn’t allow me to type anything.
   The black window opens, green cursor flashes and that’s it.
   Doesn’t accept any keyboard input. (Yes, the keyboard works)

   • How do I edit text from serial SLABS CP2104 of Option Globesurfer 3.
     I need to reset to factory and I know how to but I cannot get the text editor to work

9. Thanks for the info! Wasn’t working at first but I was testing the wrong COM ports.

10. thank you for the info , I am using Putty serial with a sipex SP3232ECP ,after connecting my cart via vpga , i open my putty connexion but i receive error messages . Anaconda blood orchid full movie. Panduan kurikulum 2013 revisi 2017.

11. my serial monitor does not response to the keyboard , the cursor standstill with no any response to the key board

In order to set it up, first you have to find it on your computer. Long long ago, almost all computers had two serial ports, called 'COM1' and 'COM2', one a with a nine pin and the other with a 25 pin connector.
Now times have changed and the serial port has vanished.
Don't give up hope, however. The USB to serial converter has arrived, and it can be used instead. It is usually a dongle which plugs into a USB port, with a nine pin male connecter at the other end.
On my desktop computer, the motherboard has two built in serial ports. The third seial port, here labelled COM4, belongs to the USB to serial adapter I have plugged in.
So, to find the serial port on your computer, scout around its back. If you find a nine pin male connector (two rows, five and four, pins sticking out inside a metal shell) it has a serial port built in.
Or get a USB to serial converter and plug it in.
Open up Device Manager. Right click on 'My Computer' and select properties (at the bottom of the list that pops up). Click on the 'Hardware' tab. Click on the 'Device Manager' button and a something similiar to this picture should appear.
Click on the '+' sign on the left of the 'Ports (COM & LPT) to expand it. The list of printer and Serial ports available will be shown. Make a note of those, you will need them in the steps that follow.