your Nimbus to a computer
the Nimbus digital thermometer to your computer requires a 9-pin
Serial Null modem cable with female connectors on both ends of
the cable. Your computer must also have a Com port. Some
newer computers do not have this as it is old technology. Assuming
that you have met the requirements, the rest is fairly easy. You
must also have Windows Hyper Terminal installed on your computer. If
you do not have Hyper Terminal installed, we can provide a copy.
All of the following assumes that Windows XP is the operating
system you are using. From the Start menu, go to All Programs,
Accessories, Communications, Hyper Terminal as shown below.
Hyper Terminal starts, you will see the line to give the connection
a a name. For our purposes, I called ours, Nimbus. You
can also choose any one of the icons shown below the name line. Once
you have done that, the next screen comes up and looks like the
one shown below. In here you will need to change the “Connect
using” line to the COM1 port. I have highlighted it in
the image below.
next step shows the Com port properties. You do not need
to change anything here. It should look like the image
below. Click the OK button.
After clicking OK from the previous screen, the next step is
to click on File and select Properties. An example is shown
you see next is where we have to “tweak” a couple settings. See
Just below the Nimbus Properties on the top of the window, you
see a Connect To tab and a Settings tab. Click the Settings
tab and you should see what is shown in the above image. Near
the bottom of that screen is the ASCII Setup button. Click
that button and the next screen comes up.
Your screen will not have a check mark in the second box from
the top, the “Echo typed characters locally”. We want to
put a check mark in the box. Once you put the check mark
in that box, click OK to close that window and click OK again
on the Nimbus properties screen to go back to the main Nimbus – HyperTerminal
step is to test what we have done. Your Nimbus manual has
the following information in it and several functions that you
can use to “talk” to the Nimbus. You will mainly be interested
in using the “atmX” feature. As seen in the image below,
I typed in “atm20” which will return the Max and Min temperatures
for the previous 20 days as well as the time it occurred. In
the example shown below on October 29th the Max temperature
was 57.0 degrees at 14:43 and the Min temp was28.1 degrees at
05:25 in the morning. The Nimbus stores up 35 days of temperature
data so when you want to see only the previous weeks data, you
would enter “atm7”. You must enter the “atm” but can enter
any number from 1 to 35.
you are finished viewing the data, you will want to disconnect. To
do that you can put your mouse over the telephone icon at the
top of the window that shows the receiver off of the phone base
and click the mouse. Or you can use the “X” in the top
right. If you use the X in the red box, Windows will ask
you if you want to disconnect and you click on Yes. The
HyperTerminal session is now closed.
word of caution. When you open a Hyper Terminal session,
you should always see what you are typing. If you typed
in something like “atm10” and you do not see that on your screen,
the Nimbus has “lost” its connection to your computer. Simply
Restart your computer and the connection will be restored.