An Evaluation System for the TSL2560/61 Ambient Light Sensor
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to an SMBus (TSL2560) or I
2
C (TSL2561) digital output that represents the irradiance measured on
each channel. This output data can be input to a microprocessor where illuminance (i.e. ambient light
level) in lux is derived using an empirical formula. In general, the TSL2560 (SMBus interface) device
is intended for use in notebook and tablet PCs while the TSL2561 (I
2
C interface) device is ideal for
most other light-to-digital applications.
USB
EVM
H
ARDWARE AND
D
RIVER
D
ESCRIPTION
The specification and system requirements for the hardware portion of the TSL2560/61 USB EVM
module follow:
System Requirements:
Notebook or Desktop PC running Windows 98, 2000, NT4.0, XP
Host Connection:
USB v2.0 using A-type connector
EVM Connection:
Mini B-type connector
Software Installation:
CD-ROM
After the mini-B connector is attached to the EVM using the enclosed USB cable, and subsequently
plugged into the USB port of the computer, a Wizard should appear instructing the user to load a USB
driver. The USB INF driver file is located in the FTDI directory on the CD-ROM and can be selected
using the ‘Browse’ button. Please note that if the FTDI USB driver installs automatically without
prompting the user to load the driver, then the FTDI USB driver will likely need to be updated. After
the software is executed, if an error message appears indicating that the "FTD2XX.DLL" could not be
found, then the USB driver will need to be updated. To update the driver with the proper file,
Click ‘Control Panel -> System -> Hardware -> Device Manager -> Universal Serial bus
controllers’
Highlight the appropriate FTDI driver in the list
Right mouse on the highlighted driver and select "Update".
Note
: The driver can found in
the FTDI directory on the CD-ROM
Figure 1.
TSL2560/61 EVM USB Evaluation Module
TMB Daughterboard
USB Mini-B
Connector
EVM Motherboard
