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EBWT41

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
Bluegiga Technologies Oy
TABLE OF CONTENTS
WT41 Evaluation Kit ............................................................................................................................................ 1
Datasheet ............................................................................................................................................................ 1
1 Design Overview .......................................................................................................................................... 5
2 Schematics ................................................................................................................................................... 7
3 Assembly .................................................................................................................................................... 10
4 Layout ......................................................................................................................................................... 11
5 Interfaces .................................................................................................................................................... 15
5.1 Powering the evaluation board .......................................................................................................... 15
5.2 USB .................................................................................................................................................... 15
5.3 SPI ..................................................................................................................................................... 16
5.4 UART ................................................................................................................................................. 16
5.5 PCM Codec and Audio Interface ....................................................................................................... 16
5.6 PIO Configurations and Using the PIO Buttons ................................................................................. 16
6 WEEE Compliance ..................................................................................................................................... 17
7 Contact Information .................................................................................................................................... 18
Bluegiga Technologies Oy
Page 5 of 18
1 Design Overview
WT41 Evaluation Kit is targeted for engineers evaluating WT41 Bluetooth modules and developing or
prototyping Bluetooth systems utilizing WT41 module(s). WT41 Evaluation Kit features:
Evaluation board for WT41 Bluetooth module containing
o RS-232 serial interface
o Switchable self powered or bus powered USB interface
o SPI for upgrading the firmware and parameters
o Push buttons for all the PIOs and reset
o PCM codec (Winbond W681360SG)
o 2 x 3,5mm audio jacks for microphone in and speaker out
o 24 pin I/O interface (PIO2 – PIO7, UART, PCM, GND, 3V3)
o Current measurement point
WT41
USB
LDO
DCIN
USBmode
Resetcircuit
I/O
RS232 RS232
transceiver
PCMCODEC
Audio
SPI
Buttons
Figure 1: Block diagram of WT41 evaluation board
Please, refer to the latest WT41 data sheet for information about WT41 Bluetooth module. The physical
outlook, schematics, assembly and the PIN configurations of the interfaces of WT41 evaluation Kit are
described in this document.
Bluegiga Technologies Oy
Page 6 of 18
WT41 Evaluation Kit is delivered with iWRAP software as default firmware. iWRAP is a simple ASCII
command based interface, which enables access to various Bluetooth functions. A detailed description of
iWRAP can be found from iWRAP User Guide, which can be downloaded from the Tech-forum.
Figure 2: WT41 Evalution Board
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

EBWT41

Mfr. #:
Buy EBWT41
Manufacturer:
Silicon Labs
Description:
EVAL BOARD WT41
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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