An Evaluation System for the TSL2550 Ambient Light Sensor TSL2550 PCMCI A EVM TSL2550 Serial EVM Figure 1 . TSL2550EVM PCMCIA and Serial Evaluation Modules

PCMCIA EVM H

ARDWARE

D

ESCRIPTION The specification and system requirements for the hardware portion of the TSL2550 PCMCIA EVM module follow: System Requirements: Notebook or Desktop PC running Windows 98, 2000, NT4.0, XP Slot(s) Required: PCMCIA Type II Environmental Parameters: Temperature: 0°C - 55°C Humidity: 10 - 90% Software Installation: CD-ROM When the PC is turned off, the TSL2550 PCMCIA EVM card should be inserted into a PCMCIA card slot that allows light to reach the clear plastic aperture on top of the card. If possible, the ALS card should be placed on top. On the card is inserted, the computer can be powered on so that it runs the normal boot-up process. During the boot-up process, the system should beep to acknowledge the insertion of a new card. See “Getting Started” topic for installing the software.

S

ERIAL

EVM H

motherboard
ARDWARE housed in a plastic DB9 module which includes a Ubicom SX microcontroller and power-conditioning circuitry, 2. A

D

ESCRIPTION The TSL2550 Serial evaluation module comes assembled and consists of three main parts: 1. A daughterboard with the TSL2550 ambient light sensor, and 3. A flex cable carrying power and two-wire signals to join the motherboard and daughterboard To operate the Serial EVM, the motherboard should be plugged into an available RS232 port on the host PC. A straight-through 9-pin male-to-female extender cable may be used between the host PC and the Serial EVM. The flex cable should be connected to the daughterboard with the conductive side facing up. “Up” on the daughterboard is relative to the surface where the components are mounted. On the motherboard, “up” is relative to the side with pins 1-5 of the DB9 connector.
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