demonstrates how to use HyperTerminal to connect to a serial
device. This is useful for testing the connectability
of a device, especially if that device doesn't implement a full
RS232 protocol (eg: the DIY/Kitsrus K145
Temperature Data Logger). We'll use the K145 as an
Note: As of Windows
Vista, Microsoft no longer includes HyperTerminal in the installation.
MinTerm Lite can be used instead.
1. Connect the
K145 to your pc's serial port with a straight-through serial
(See the RS232
Tutorial for explanation of straight-through and null modem)
2. From the
Start menu in Windows, go:
Accessories | Communications | HyperTerminal
HyperTerminal opens, it will display the New Connection wizard
"K145" (without the quotes), and click [OK].
5. The next page
in the wizard will be "Connect To"
Select your COM port from the drop list of
available connections, then click [OK].
(If you had a modem installed, it would
appear in this list as well.)
6. Next, you'll see
the Port Settings page
Set values as: 2400 - 8 -
None - 1 - None, then click [OK].
7. At this
point, you're returned to the main HyperTerminal
You should see the K145 start communicating --
it will first send an ID string,
then start sending temperature
disconnect, click the lifted handset image on the
To re-connect, click the image with the
handset at rest.
The change will show in the status
bar at the bottom of the window.
9. You can save
your connection information for re-use at a later
When you click Save, you get the Save Dialog:
Enter a convenient name, and click
the [Save] button.
10. To re-open
your saved connection info, go: File | Open on the
HyperTerminal main menu.
Information and images
are copyright © 2007 by John Gray