DATAMATH CALCULATOR MUSEUM
Texas Instruments Personal Learning Tool PLT WS1
|Date of introduction:||never||Display technology:|
|New price:||Display size:||n.a.|
|Size:|| 8.4" x 3.8" x 1.6"
214 x 94 x 40 mm³
|Weight:||8.1 ounces, 230 grams||Serial No:|
|Batteries:||Li-Ion 3.7V 1400mAh||Date of manufacture:||year 2002|
|AC-Adapter:||Origin of manufacture:||Taiwan (I)|
|Program steps:||Courtesy of:||Joerg Woerner|
from Texas Instruments that they developed a family of next-generation Personal
Learning Tool products based on the LINUX operating system. The
PLT WS1 cradle features a wide range of connectivity:
• Wireless LAN operating in the 2.4GHz band (IEEE 802.11b)
Disassembling the PLT WS1 is a great exercise in reverse engineering! The internal construction of the PLT WS1 is dominated by a total of 5 connectors and a slot for the wireless LAN module operating in the 2.4GHz band. This module obviously could be used in the larger, landscape oriented PET device labeled PLT FHH1 for Fido Hand Held.
The PCB (printed circuit board) of the wireless LAN module is centered around an ATMEL Media Access Controller and hosts four main Integrated Circuits:
• ATMEL AT76C505/567B1
|ARM7TDMI based Media Access Controller|
• Alliance AS7C31024
|128k Bytes CMOS SRAM|
• Silicon Laboratories SH4126
|Dual-band RF synthesizer|
• RF Micro Devices 2948
|2.4GHz Spread-Spectrum Transceiver|
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, February 4, 2007. No reprints without written permission.