DVK-WLM400 Laird Technologies, DVK-WLM400 Datasheet - Page 11

• Manufacturer Part Number: DVK-WLM400
• Description: DEVELOPMENT KIT WISM+
• Manufacturer: Laird Technologies
• Type: Transceiverr

Specifications of DVK-WLM400

• Frequency: 2.4GHz
• Processor Series: WISM+
• Silicon Manufacturer: Laird Technologies
• Kit Application Type: Communication & Networking
• Application Sub Type: Wi-Fi Intelligent Serial
• Kit Contents: PCB, 2x Antennas, Power Adapter, USB Cable, RS-232
• Rohs Compliant: Yes
• For Use With/related Products: WLM400
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

2.2.3 I2C Header
This is the WISM+ I2C two-wire interface. It is also connected to the real time clock on the Dev Kit board. These pins
are also compatible with the Ardvark USB to SPI/I2C device, but currently, the only function for the I2C bus is the
interface to the Real-Time-Clock populated on the Dev Kit PCB. In the future, this interface might be set up so the
WISM+ can interface to other defined I2C sensors.
2.2.4 10/100 Ethernet Connector
This is a standard RJ-45 Ethernet connector and is another host interface to the WISM+. A standard Ethernet cable
can be connected between a PC and the Dev Kit and WIF.exe can be configured to operate over the PC’s Ethernet
port.
2.2.5 USB Device “MINI” Connector
This is a standard USB mini connector which can be used to connect the Dev Kit to a PC over the host USB interface.
A USB cable is provided to connect to a PC. By default, WIF.exe will use the USB port for WISM+ communications.
This is the recommended interface to use for the Dev Kit right out of the box.
On the Dev Kit PCB, the USB connector is wired to the WISM+ USB device pins: WISM+ pin 4 (USB_DDM) and
WISM+ pin 5 (USB_DDP).
2.2.6 Debug Com Port
This is an RS-232 DCE serial port. This port outputs internal debug information which can be used by Laird
Technologies to attempt to debug WISM+ operations. There is no hardware flow control. DB9 Pin 2 is transmit data to
the PC, and DB9 pin 3 is receive data from the PC.
2.3 RF
2.3.1 WISM+ U.FL Port#1 & #2
These are the two WISM+ RF ports. They utilize a miniature U.FL type non-standard RF connector per FCC/IC rules.
The WISM+ Dev Kit comes with two antennae connected. This gives you the ability to test antenna diversity, or to
configure a single antenna.
NOTE: See section: “
antenna configuration.
2.3.2 Antenna Mounting Holes
These holes are used to mount antennae. Both mounting holes can have antennae installed and connected to WISM+
RF ports #1 & #2 U.FL connectors. The Dev Kit is shipped stock with both antennae and is configured out of the box
to use antenna diversity.
© Laird Technology 2010
I2C Header
4,5,6,7,8,9
PIN#
2,10
1
3
I2C Header
I2C_CLK
I2C_DAT
GND
N/C
PIN NAME
Configure WISM+ Antenna
I/O
I/O
I/O
WISM+
PIN #
23
22
PIN NAME
I2C_CLK
I2C_DAT
WISM+
” for the details on the procedure to change the WISM+
DESCRIPTION
This is the I2C clock line.
This is the I2C data line.
These pins are tied to the ground plane of the
Dev Kit PCB
These pins are not connected.
Version 1.00
WISM+ DVK MANUAL
Page 6