OLIMEX MOD-WiFi Manual de usuario

MOD-WiFi development board

User's manual

All boards produced by Olimex are ROHS compliant

Document revision B, May 2014

Page 1

INTRODUCTION:

MOD-WiFi module gives you the opportunity to add WIFI to any o our

development boards with UEXT connector. There is ready made support in

Microchip's TCP-IP stack so you can use MOD-WIFI with any PIC board with UEXT

and you have hands on the complete source code.

BOARD FEATURES:

–MOD-WIFI extends OLIMEX boards (that have a UEXT connector) to have W reless

nternet access

–Uses M croch p MRF24WB0MA module

–Works w th M croch p TCP-IP stack

–PCB: FR-4, 1.5 mm (0,062"), soldermask, wh te s lkscreen component pr nt

–D mens ons: (29.00x22.50)mm (1.14x0.86)"

–Space between the p n rows: 20mm (0.8")

ELECTROSTATIC WARNING:

The MOD-WiFi board is shipped in protective anti-static packaging. The board

must not be subject to high electrostatic potentials. General practice or working

with static sensitive devices should be applied when working with this board.

BOARD USE REQUIREMENTS:

Hardware: some o our development boards with UEXT.

Page 2

Wi-Fi Module Features:

MOD-WiFi board use MRF24WB0MA Wi-Fi module with these eatures:

–Single-chip 802.11b including MAC, baseband, RF and power ampli ier

–Data Rate: 1 & 2 Mbps

–802.11b/g/n compatible

–Low power operation

–API or embedded markets, no OS required

–PCB antenna

–Hardware support or AES and RC4 based ciphers (WEP, WPA, WPA2 security)

–SPI slave inter ace with interrupt

–Single 3.3V supply, operates rom 2.7V to 3.6V

–21mm x 31mm 36-pin Dual Flat pack PCB SM Package

–Wi-Fi certi ied, RoHS and CE compliant

–FCC Certi ied (USA, FCC ID: W7O-ZG2100-ZG2101)

–IC Certi ied (IC: 8248A-G21ZEROG)

–Fully compliant with EU & meets the R&TTE Directive or Radio Spectrum

–Radio Type Approval Certi ied (Japan, MRF24WB0MA based solution ID:

AC164136-2 – 005WWCA0311 005GZCA0149)

Page 3

BLOCK DIAGRAM:

Page 4

SCHEMATIC:

Page 5

UEXT

MOD-WIFI, board revision A with MRF24WB MA

https://www.olimex.com

OLIMEX LTD, BULGARIA, 2 14

1uF

39pF

4.7k

R4 4.7k

4.7k

CE_N

DNC 8

DNC1 22

DNC2 12

DNC3 13

DNC4 14

DNC5 15

GND 1

GND1 1

GND2 18

GND3 19

GND4 25

GND5 28

GND6 3

GND7 36

INT_NX

JTAG_EN

JTAG_RST_N

JTAG_TCK

JTAG_TDI

JTAG_TDO

JTAG_TMS

RES

RST_N

SCK

SCS_N

SDI

SDO

UART_RX

UART_TX

VDD1_1.8

VDD1_3.3

VDD2_1.8

VDD3_1.8

VDD_1.8

VDD_3.3

MRF24WB MA

1 2

3 4

5 6

7 8

9 1

IDC1 F/PCB

3.3V

3.3V3.3V3.3V

3.3V

#SS

INT_NX

JTAG_RST_N

MISO

MOSI

RST_N

RXD

SCK

TXD

BOARD LAYOUT:

POWER SUPPLY CIRCUIT:

MOD-WiFi is typically power supplied by UEXT pin 1 and pin 2 with 3.3V.

The board power consumption is about 110 mA.

RESET CIRCUIT:

MOD-WiFi reset circuit includes pull down R4 (4.7k) connected to MRF24WB0MA

pin 8 (JTAG_RST_N) and pin 21 (JTAG_EN).

JUMPER DESCRIPTION:

There are no jumpers on this board.

Page 6

CONNECTOR DESCRIPTIONS:

UEXT:

Pin # Signal Name

1 VCC

2 GND

3 RXD

4 TXD

5 INT_NX

6 RST_N

7 MISO

8 MOSI

9 SCK

10 #SS

Page 7

MECHANICAL DIMENSIONS:

UEXT measures

Page 8

AVAILABLE DEMO SOFTWARE:

–Microchip's application libraries l brar es that nclude a TCP-IP stack and examples,

very easy to con igure and use with PIC microcontrollers.

– PIC-WEB and MOD-WIFI demo example; based on MICROCHIP's application

libraries: https://www.olimex.com/Products/PIC/Development/PIC-

WEB/resources/PIC_WEB_MOD_WIFI_5_42.zip

– MOD-MX460 and MOD-WIFI demo example:

https://www.olimex.com/Products/Modules/Ethernet/MOD-

WIFI/resources/MOD-WIFI-demo- or-the-PIC32-MX460-rev.B-board.zip

– PIC-T795 and MOD-WIFI demo example:

https://www.olimex.com/Products/Duino/PIC32/PIC32-T795/resources/T795-

MOD-WIFI.zip

Page 9

ORDER CODE:

MOD-WiFi – completely assembled and tested

How to order?

You can order to us directly or by any o our distributors.

Check our web www.olimex.com or more in o.

Revision history:

Board revision: Rev. A – February 2010

Manual revision: Rev. Initial – June 2011

Rev. B – May 2014

Page 10

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