Microchip Technology RN111B Users manual

Technical Note RN-111b-UG-1.0

WiFLy RN-111B

802.11b “wifi” wireless LAN – OEM Module

Integration Guide and Users Manual

Version 1.16

June 16, 2008

Copyright © 2008 Roving Networks, Inc.
The contents of this document can be changed by Roving networks without prior notice

and do not constitute any binding undertakings from Roving networks. Roving networks
is not responsible under any circumstances for direct, indirect, unexpected damage or
consequent damage that is caused by this document.

Roving Networks Wifly RN-111B User Guide Version 1.16

All rights reserved.
Release: 1-02-08

Document version: 1.0
Document number: RN-Wifly-UserGuide-1.0
Printed in the United States of America.

Trademarks

Registered trademarks from other companies are:

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Roving Networks Wifly RN-111B User Guide Version 1.16

Federal Communications Commission (FCC) Statement

15.21
You are cautioned that changes or modifications not expressly approved by the part
responsible for compliance could void the user’s authority to operate the equipment.

15.105(b)
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:

-Reorient or relocate the receiving antenna.

-Increase the separation between the equipment and receiver.

-Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.

-Consult the dealer or an experienced radio/TV technician for help.

Operation is subject to the following two conditions:

1) this device may not cause interference and

2) this device must accept any interference, including interference that may cause
undesired
operation of the device.

FCC RF Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment. End users must follow the specific operating instructions for satisfying RF
exposure compliance. This transmitter must not be co-located or operating in conjunction
with any other antenna or transmitter.

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Roving Networks Wifly RN-111B User Guide Version 1.16

Industry Canada (IC) Statement

15.21

You are cautioned that changes or modifications not expressly approved by the part
responsible for compliance could void the user’s authority to operate the equipment.

15.105(b)

This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the IC rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
* Reorient or relocate the receiving antenna.
* Increase the separation between the equipment and receiver.
* Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
* Consult the dealer or an experienced radio/TV technician for help.

Operation is subject to the following two conditions:

1) this device may not cause interference and

2) this device must accept any interference, including interference that may cause
undesired operation of the device.

IC RF Radiation Exposure Statement:

This equipment complies with IC radiation exposure limits set forth for an unc ontrolled
environment. End users must follow the specific operating instructions for satisfying RF
exposure compliance. This transmitter must not be co-located or operating in conjunction
with any other antenna or transmitter.

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Table of Contents

1.1. RN-111B Overview

1. About WiFLY RN-111B 4

1.1. RN-111B Overview 4

1.2. RN-111B Features 4

1.3. RN-111B Options 5

1.4. RN-111B Specificattions 5

1.5. RN-111B Block Diagram 6

1.6. RN-111B Electrical Characteristics 6

1.7. RN-111B Operating and Environmental Conditions 7

1.8. RN-111B Dimensions 7

1.9. RN-111B Pin Description 7

2. Introduction 8

2.1. Hardware interfaces 8

2.2. Configuration 9

2.3. LED indications 9

3. RN-111B Command Reference 10

3.1. Set Commands 11

3.2. Get Commands 14

3.3. Status Commands 14

3.4. Action Commands 15

3.5. File IO Commands 15

4. System timers and other features 16

4.1. Wake on SENSE inputs 16

4.2. Wake on UART 16

4.3. Setting diagnostic print levels 17

4.4. Setting PIO directions 18

4.5. Setting alternate IO functions 18

5. FTP Upgrade and Image Storing 19

6. Factory Default Power up Settings 20

Roving Networks Wifly RN-111B User Guide Version 1.16

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Roving Networks Wifly RN-111B User Guide Version 1.16

1.1. RN-111B Overview

The RN-111b “WiFly” radio module is a complete, stand alone, embedded wireless
LAN access device. The device has on board TCP/IP stack and applications. Requiring
only 4 pins (POWER, TX, RX, GND) to design in. Once initial configuration is set, the
radio can automatically access the WiFi network and send/receive serial data over UART.

• Fully Qualified 2.4GHz IEEE 802.11b Wireless LAN radio module.

• 32bit CPU, 230K ROM, 80KRAM, 4MB on board flash.

• On board ECOS -OS, TCP/IP stacks.

• 3.3V UART and SPI interfaces available to various applications.

• Accepts wide voltage range input 3.3V – 12VDC.

• Multiple Antennae options, SMA, U.FL, ceramic Chip, ¼ wave wire.

• Conforms to FCC, CE and the EMI standard of each country.

• Modular Approval: FCC ID: T9J-RN111b, ICS: 6514A-RN111b, CE: 0681

• RoHS compliance.

1.2. RN-111B Features

• Baud rate speeds: 1200bps up to 921.6Kbps and non-standard baudrates.

• Ultra low power consumption (110mA TX, 40ma RX, 12uA deep sleep).

• Real time clock for timestamping, auto-sleep and auto-wake modes.

• UART local configuration using simple ASCII commands.

• Over the air firmware upgrade (FTP), and data file upload.

• 3 on board LEDs for status.

• 6 Programmable IO pins, 8 analog sensor inputs.

• On board flash can be used to store multiple applications, and for data logging,

and stored data forwarding at intervals to the networks.

• Small-form factor low profile radio modem 25mm x 36mm x 5mm.

• 32 pin Standard 2mm DIP socket pin spacing.

1.3 RN-111B Options

• Larger flash memory (up to 16Mb) for data logging.

• On board boost regulator can power from low voltage 2-3V battery source.

• SMA, Chip, U.FL or wire ANT.

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1.4. RN-111B Specifications

Item Specifications

Frequency 2402 ~ 2480MHz

Roving Networks Wifly RN-111B User Guide Version 1.16

Modulation

Channel intervals 5MHz

Number of channels 13CH

Transmission rate (over the air) 11/5.5/2/1 Mpbs

Receive sensitivity -85dBm typ.

Output level (Class1) 12dBm max.

Dimensions

With antenna

1.5. RN-111B Block Diagram

DSSS(CCK-11, CCK-5.5, DQPSK-2, DBPSK-1)

25.4(W)X36(L)X5(H)mm

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Roving Networks Wifly RN-111B User Guide Version 1.16

1.6 RN-111B Electrical Characteristics

Min Typ. Max. Unit
Supply Voltage VIN 4.0 5.0 12 VDC
Supply Voltage VDD 3.0 3.3 3.6 VDC
Supply Voltage (VBATT option) 2.0 3.0 3.3 VDC
Average power consumption
Standby/Idle (default settings) - 35 - mA
Sleep 12 20 900 uA (micro)
Connected(idle, RX) 40 mA
Connected( TX) 110 180 mA

1.7 RN-111B Operating and Environmental Conditions

Operating Temperature Range -40 oC ~ 85 oC
Storage Temperature Range -40 oC ~ 85 oC
Relative Humidity (Operating) ≤90%
Relative Humidity (Storage) ≤90%

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