DLP-UT1
LEAD-FREE
TEMPERATURE SENSOR
1.0 INTRODUCTION
The DLP-UT1 is a low-cost, easy-to-use temperature measuring device featuring 4
th
generation USB
silicon from FTDI. All operational power is taken from the host PC via the USB port.
2.0 SPECIFICATIONS
The DLP-UT1 will measure temperature in the range of 32 to 158°F (0 to 70°C).
3.0 ABSOLUTE MAXIMUM RATINGS
Stresses above those listed here may cause permanent damage to the DLP-UT1:
Operating Temperature: 0-70°C
4.0 USB DRIVERS
USB drivers for the following operating systems are available for download from the DLP Design
website:
Windows XP x64
Windows Server 2003
Windows 2000
Windows 98, ME
Mac OSX
Mac OS9
Mac OS8
L in u x
These drivers are available for download from the following page: http://www.dlpdesign.com/DNLD8/.
Note: If you are using the dual-mode drivers and wish to use the Virtual COM Port (VCP) drivers,
then it may be necessary to disable the D2XX drivers first via Device Manager. To do so, right click
on the entry under USB Controllers that appears when the DLP-UT1 is connected, select Properties,
select the Advanced tab, check the option for “Load VCP” and click OK. Once you unplug and then
replug the DLP-UT1, a COM port should appear in Device Manager under Ports (COM & LPT).
Rev. 1.1 (July 2008)
1
© DLP Design, Inc.
5.0 USING THE DLP-UT1
Simply connect the DLP-UT1 to the PC to initiate the loading of drivers. Once the drivers are loaded,
the DLP-UT1 is ready for use. All commands are single-byte commands.
You can either utilize a simple terminal-emulator program or write your own program in your language
of choice. Begin by opening the COM port, set the baud rate to 9600 (1 start bit, no parity, 8 data bits,
1 stop bit), and send single-byte commands as shown below. The Ping command can be used to
locate the correct COM port to be used for communicating with the DLP-UT1, or you can look in
Device Manager to see which port Windows has assigned to the DLP-UT1.
NOTE: If a COM port is not present after installing the CDM drivers, connect the USB device and
open Control Panel > System > Device Manager. Right click on DLP-UT1 under USB Controllers and
select Properties, then the Advanced tab. Check the box marked "Load VCP" then click OK. Unplug
and re-plug the DLP-UT1 and the COM port will be added.
COMMAND
‘ (27h)
B (42h)
C (43h)
F (46h)
DESCRIPTION
Ping
Read temperature binary mode
Read temperature ASCII mode
Read temperature ASCII mode
DATA RETURNED
T (54h)
2 bytes, binary data
Temperature in °C (ASCII characters)
Temperature in °F (ASCII characters)
6.0 RETURN DATA TYPES
By default, the DLP-UT1 returns data to the host PC in the form of ASCII text such that it can be
easily displayed using a simple terminal emulator. Alternatively, data can be returned in binary form
requiring the user’s host application to calculate the current temperature.
7.0 DISCLAIMER
© DLP Design, Inc., 2008
Neither the whole nor any part of the information contained herein nor the product described in this
manual may be adapted or reproduced in any material or electronic form without the prior written
consent of the copyright holder.
This product and its documentation are supplied on an as-is basis, and no warranty as to their
suitability for any particular purpose is either made or implied. DLP Design, Inc. will not accept any
claim for damages whatsoever arising as a result of the use or failure of this product. Your statutory
rights are not affected. This product or any variant of it is not intended for use in any medical
appliance, device or system in which the failure of the product might reasonably be expected to result
in personal injury.
This document provides preliminary information that may be subject to change without notice.
Rev. 1.1 (July 2008)
2
© DLP Design, Inc.
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