Ezurio 410B User Manual

BTM410/411 DATA MODULE

USER MANUAL

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Innovative Technology for a Connected World

BTM410/411

Bluetooth® AT Data Module

REVISION HISTORY

Revision Description

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Laird Technologies

BTM410/411

Bluetooth® AT Data Module

TABLE OF CONTENTS

CONTENTS

BTM410/411 Bluetooth® Module ..4

Overview .............................................. 4

BTM410/411 Key Features ................... 4

Specications ................................5

Detailed Specications ......................... 5

Pin Denitions ...................................... 7

Operating Parameters ...................8

Voltage Specications .......................... 8

Conguring the BTM410/411 ........9

AT Command Set .............................. 10

Assumptions ...................................... 10

Commands ........................................ 10

Unsolicited Responses ........................ 30

Incoming Connections ........................ 31

Pairing and Trusted Devices ............... 32

Error Responses .................................. 33

Factory Default Mode ........................ 34

Miscellaneous Features ....................... 34

Disclaimers ......................................... 35

Application Examples ..................36

RS232 Modem Signals ....................... 36

Modem Signaling over Bluetooth® ..... 37

Pure Cable Replacement Mode .......... 37

Audio Cable (Voice) ........................... 38

Modem Control and Status Signals .... 39

Mechanical Drawings ..................40

Mechanical Details ............................. 40

Recommended PCB Footprint ............ 41

Notes for PCB Layout ......................... 41

Diagrams ............................................ 42

Ordering Information ..................44

Product Part Numbers ........................ 44

General Comments ............................ 44

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Laird Technologies

BTM410/411

Bluetooth® AT Data Module

OVERVIEW AND KEY FEATURES

The BTM410 and BTM411 Bluetooth® modules from Laird Technologies have been designed to meet the needs of developers who wish to add robust, short range Bluetooth data connectivity to their products. They

are based on the market leading Cambridge Silicon Radio BC04 chipset, providing exceptionally low power

consumption with outstanding range. They support the latest Bluetooth® Version 2.1 Specication, providing the important advantage of Secure Simple Pairing, which improves security and enhances the ease of use for end customers.

With physical sizes as small as 12.5 x 18.0mm and best of class, low-power operation, these modules are the ideal choice for applications where designers need both performance and minimum size. For maximum exibility in

systems integration, the modules are designed to support a separate power supply for I/O.

To aid product development and integration, Laird Technologies has integrated a complete Bluetooth protocol

stack within the modules, including support for the Bluetooth Serial Port Prole. The modules are fully qualied as

Bluetooth End Products, allowing designers to integrate them within their own products with no further Bluetooth

Qualication. They can then list and promote their products on the Bluetooth website free of charge.

Future releases include support for the Bluetooth Health Device Prole, making this module the ideal choice for manufacturers who are developing Continua Health Alliance

compliant devices.

A comprehensive AT command interface is included, which simplies rmware integration. Combined with a low

cost developers kit, this ensures that the choice of Laird Technologies Bluetooth modules guarantees the fastest route to market.

FEATURES AND BENEFITS

• Bluetooth® v2.1+EDR

• Adaptive Frequency Hopping to cope with interference

from other wireless devices

• Secure Simple Pairing support

• External or internal antenna options

• Comprehensive AT interface for simple programming

• Bluetooth® END Product Qualied

• Compact size

• Class 2 output – 4dBm

• Low power operation

• UART interface

• Multi-point support

• PCM and SCO for external codec

• GPIO lines under AT control

• Support for Serial Port Prole

• Support for Health Device Prole (Q3 ‘09)

• Wi-Fi co-existence

APPLICATION AREAS

• Embedded Devices

• Phone Accessories

• Security Devices

• Medical and Wellness

Devices

• Automotive Applications

• Bluetooth® Advertising

• ePOS

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BTM410/411

Bluetooth® AT Data Module

SPECIFICATIONS

CATEGORIES FEATURE IMPLEMENTATION

Wireless Specication

Antenna Modes

UART Interface

General Purpose Interface Audio

Protocols and Firmware

Bluetooth

Transmit Class Class 2

Frequency 2.402 – 2.480 GHz

Channels

Max Transmit Power

Min Transmit Power

Receive Sensitivity

Range Up to 50 metres free space

Data Transfer Rate Up to 300 kbps

External Antenna 50 Ohm matched SMT pad – BTM410

Integrated Antenna (option) +0dBi multilayer ceramic – BTM411 (provisional)

Serial Interface

Baud Rate

Bits 8

Parity Odd, even, none

Stop bits 1 or 2

Default Serial parameters 9600,n,8,1

Levels Set by VDD_USB input

Modem Control DTR, DSR, DCD, RI, RTS, CTS

I/O 8 general purpose I/O pins

Support 3 PCM Channels @ 64kbps

SCO Channels Support SCO and eSCO

PCM Interface

Bluetooth Stack V2.1 compliant. Fully integrated.

Proles

Firmware Upgrade Available over UART

Connection Modes

Version 2.1+EDR

79 channels Frequency Hopping Adaptive Frequency Hopping +4 dBm at antenna pad – BTM410 +4 dBmi from integrated antenna – BTM411 (provisional)

-27 dBm at antenna pad – BTM410

-27 dBmi from integrated antenna – BTM411

(provisional)

-84dBm

RS-232 bi-directional for commands and data

16550 compatible

Congurable from 1,200 to 921,600bps Non-standard

baud rates supported

Congurable as master or slave 8 bit A-law 8 bit μ-law

13 bit linear PCM Clock available when in slave mode

GAP (Generic Access Prole) SDP (Service Discovery Prole) SPP (Serial Port Prole) HDO (Health Device Prole) – 2009 release

Point to point (cable replacement)

Multipoint – max 3 slaves

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Laird Technologies

BTM410/411

Bluetooth® AT Data Module

SPECIFICATIONS

CATEGORIES FEATURE IMPLEMENTATION

Command Interface

Current Consumption

Supply Voltage

Coexistence / Compatibility

Connections

Physical

Environmental

Approvals

Miscellaneous

Development Tools

AT Instructions set

Multipoint Software Supports multiple connections

Data Transfer Typically 32mA

Low Power Sniff Mode Less than 2.5mA Supply 3.0V – 3.3V DC I/O 1.7V – 3.3V DC (independent of Supply) USB & UART 1.7V – 3.6V DC (independent of Supply)

WLAN (802.11)

Interface Surface Mount Pads External Antenna (BTM410) Pad for 50 Ohm antenna

Dimensions

Weight 3 grams Operating Temperature -30°C to +70°C Storage Temperature -40°C to +85°C Bluetooth Qualied as an END product

FCC

CE & R&TTE Meets CE and R&TTE requirements Lead free Lead-free and RoHS compliant

Warranty 12 Months

Development Kit

Comprehensive control of connection and module operation

S Registers for non-volatile storage of parameters

2-wire and 3-wire hardware coexistence

schemes supported

12.5mm x 18.0 x 1.6mm BTM410

12.5mm x 24.0mm x 1.6mm BTM411 (provisional)

Meets FCC requirements

Modular Approval

(Integrated Antenna option – BTM411)

Development board and software tools

DVK-BTM410 Dev Kit with BTM410 module tted DVK-BTM411 Dev Kit with BTM411 module tted

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Laird Technologies

BTM410/411

Bluetooth® AT Data Module

SPECIFICATIONS

PIN SIGNAL DESCRIPTION

1 Unused 2 GND 3 UART_CTS Clear to Send I/P VUSB 4 UART_RXD Receive data I/P VUSB 5 UART_RTS Request to Send O/P VUSB 6 UART_TXD Transmit data O/P VUSB 7 GND 8 SPI_CSB SPI bus chip select I/P VIO

9 SPI_MISO SPI bus serial O/P VIO 10 SPI_MOSI SPI bus serial I/P VIO 11 SPI_CLK SPI bus clock I/P VIO 12 VDD_USB USB & UART supply voltage 13 VDD_IO I/O supply voltage 14 VDD_IN Main supply voltage 15 GND 16 PCM_IN PCM clock I/P VIO 17 PCM_SYNC PCM sync I/P VIO 18 PCM_CLK PCM clock I/P VIO 19 PCM_OUT PCM Data O/P VIO 20 RESET Module reset I/P See note 2 21 GPIO5 I/O for host VIO 22 GPIO3 / UART_DCD I/O for host VIO 23 GND 24 Unused 25 Unused 26 Unused 27 Unused 28 GND 29 ANT (BTM410) Antenna connection (50 ohm matched) 30 GND 31 Unused 32 Unused 33 Unused 34 Unused 35 Unused 36 Unused 37 Unused 38 Unused 39 Unused 40 Unused 41 GND 42 GPIO2 / UART_RI I/O for host VIO 43 GPIO9 /UART_ DTR I/O for host VIO 44 GPIO10 / UART_DSR I/O for host VIO 45 GND 46 D- Not used for AT module variants VUSB 47 D+ Not used for AT module variants VUSB 48 GPIO7 I/O for host VIO 49 GPIO6 I/O for host VIO 50 GPIO4 I/O for host VIO

VOLTAGE SPECIFICATION

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Note: 1. Unused pins may have internal connections and must not be connected.

2. Reset input is active low. Input is pulled up to VDD_IN via 22k. Minimum reset pulse width is 5ms.

Laird Technologies

BTM410/411

Bluetooth® AT Data Module

OPERATING PARAMETERS

RECOMMENDED OPERATING CONDITIONS OPERATING CONDITION MIN MAX

VDD_USB

(USB compatibility not required)

VDD_USB

(USB compatibility required)

VDD_IO 1.7 3.3

VDD_IN 3.0 3.3

1.7 3.6

3.1 3.6

VOLTAGE SPECIFICATIONS

LOGIC LEVELS (VUSB) INPUT VOLTAGE LEVELS MIN TYP MAX

Vil1.7<VDD_USB<1.9 -0.4 +0.8

2.7<VDD_USB<3.0 -0.4 +0.4

OUTPUT VOLTAGE LEVELS (1.7<VDD_USB<1.9)

Voh (Iout = -4mA) VDD_USB – 0.4

Vol (Iout = 4mA) 0.4

OUTPUT VOLTAGE LEVELS (2.7<VDD_USB<3.0)

Voh (Iout = -4mA) VDD_USB – 0.2

Vol (Iout = 4mA) 0.2

0.7VDD_IO

Note: VDD_USB must be connected to power the USB and UART interfaces.

LOGIC LEVELS (VIO) INPUT VOLTAGE LEVELS MIN TYP MAX

0.7VDD_IO

-0.4 +0.8

-0.4 +0.4

OUTPUT VOLTAGE LEVELS (1.7 < VDD_IO < 1.9)

Voh (Iout = -4mA) VDD_IO – 0.4

Vol (Iout = 4mA) 0.4

OUTPUT VOLTAGE LEVELS (2.7 < VDD_IO < 3.0)

Voh (Iout = -4mA) VDD_IO – 0.2

Vol (Iout = 4mA) 0.2

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BTM410/411

Bluetooth® AT Data Module

CONFIGURING THE BTM410/411

INTRODUCTION

This document describes the protocol used to control and congure the BT Data Bluetooth device.

The protocol is similar to the industry standard Hayes AT protocol used in telephony modems which is

appropriate for cable replacement scenarios, as both types of devices are connection oriented. The telephony

commands have been extended to make the device perform the two core actions of a Bluetooth device, which is make/break a connection and Inquiry. Many other AT commands are also provided to perform

ancillary functions, such as, pairing, trusted device database management and S Register maintenance.

Just like telephony modems, the device powers up in an unconnected state and will only respond via the serial interface. In this state the device will not even respond to Bluetooth Inquiries. Then, just like controlling a modem, the host can issue AT commands which map to various Bluetooth activities. The command set is extensive enough to allow a host to make connections which are authenticated and/or encrypted or not authenticated and/or encrypted or any combination of these. Commands can be saved,

so that on a subsequent power up the device is discoverable or automatically connects.

The device has a serial interface which can be congured for baud rates from 1200 up to 921600 (default

setting is 9600) and an RF communications end point. The latter has a concept of connected and unconnected

modes and the former will have a concept of command and data modes. This leads to the matrix of states

shown below.

RF UNCONNECTED RF CONNECTED

Local Command Mode OK OK

Remote Command Mode ILLEGAL OK

Data Mode ILLEGAL OK

The combinations, ‘Data and RF Unconnected Mode’ and ‘Remote Command and RF Unconnected Mode’ do not make sense and will be ignored.

Navigation between these states is done using the AT commands which are described in detail in

subsequent sections.

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BTM410/411

Bluetooth® AT Data Module

CONFIGURING THE BTM410/411

AT COMMAND SET

Assumptions

The CSR (Cambridge Silicon Radio) Bluecore chipset in Laird Technologies devices is memory resource limited. Therefore it is NOT proposed that there be full implementation of the AT protocol as seen in modems. The claim made for this device is that it will have a protocol similar to an AT modem. In fact, the protocol is similar

enough so that existing source code written for modems, can be used with very little modication with a Laird

Technologies device.

Therefore the following assumptions are made:

1. All commands are terminated by the carriage return character 0x0D, which is represented by the string <cr> in descriptions below this cannot be changed.

2. All responses from the device have carriage return and linefeed characters preceding and appending the response. These dual character sequences have the values 0x0D and 0x0A respectively and shall be represented by the string <cr,lf>.

3. All Bluetooth addresses are represented by a xed 12 digit hexadecimal string, case insensitive.

4. All Bluetooth Device Class codes are represented by a xed 6 digit hexadecimal string, case insensitive.

Commands

This section describes all available AT commands. Many commands require mandatory parameters and some

take optional parameters. These parameters are either integer values, strings, Bluetooth addresses or device classes. The following convention is used when describing the various AT commands.

<bd_addr> A 12 character Bluetooth address consisting of ASCII characters ‘0’ to ‘9’, ‘A’ to ‘F’ and ‘a’ to ‘f’.

<devclass> A 6 character Bluetooth device class consisting of ASCII characters ‘0’ to ‘9’, ‘A’ to ‘F’ and ‘a’ to ‘f’.

N A positive integer value.

M An integer value which could be positive or negative, which can be entered as a decimal value or

in hexadecimal if preceded by the ‘$’ character. E.g. the value 1234 can also be entered as $4D2

<string> A string delimited by double quotes. E.g. “Hello World”. The “ character MUST be supplied as delimiters.

<uuid> A 4 character UUID number consisting of ASCII characters ‘0’ to ‘9’, ‘A’ to ‘F’ and ‘a’ to ‘f’.

1. ^^^ {Enter Local Command Mode}

When in data and connected mode, the host can force the device into a command and connected

mode so that AT Commands can be issued to the device. The character in this escape sequence is specied in the S2 register, so can be changed. In addition, the escape sequence guard time is specied by S Register 12. By default the guard time is set to 100 milliseconds. Please refer to

Section 5: Dropping Connections for more related information.

In modems this escape sequence is usually “+++”. “^^^” is specied to avoid confusion when the module is providing access to a modem.

Response: <cr,lf>OK<cr,lf>

2. !!! {Enter Remote Command Mode}

When in data and connected mode, the host can force the remote device into a command and

connected mode so that AT Commands can be issued to the device remotely. The escape sequence guard time is specied by S Register 12 and is the same as per the ^^^ escape sequence. By default

the guard time is set to 100 milliseconds. The remote device issues ATO as normal to return to data mode. (Refer to step 12)

For this command to be effective S Register 536 must be set to 1.

Response: <cr,lf>OK<cr,lf>

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Laird Technologies

BTM410/411

Bluetooth® AT Data Module

CONFIGURING THE BTM410/411

3. AT

Used to check the module is available.

Response: <cr,lf>OK<cr,lf>

4. ATA {Answer Call}

Accept an incoming connection, which is indicated by the unsolicited string

<cr,lf>RING 123456789012<cr,lf> every second. 123456789012 is the Bluetooth address of the connecting device.

Response: <cr,lf>CONNECT 123456789012<cr,lf>

5. ATD<U><Y><bd_addr>,<uuid> {Make Outgoing Connection}

Make a connection to device with Bluetooth address <bd_addr> and SPP prole <uuid>. The <uuid> is an optional parameter which species the UUID of the prole server to attach to, and if not supplied

then the default UUID from S Register 101 is used. As this is a device which utilises the RFCOMM layer as described in the Bluetooth specication, it necessarily implies that only proles based on RFCOMM can be accessed.

If <U> is not specied, then authentication is as per register 500, otherwise the connection will be authenticated.

If <Y> is not specied, then encryption is as per register 501, otherwise the connection will have encryption enabled.

The timeout is specied by S register 505.

Response: <cr,lf>CONNECT 123456789012<cr,lf>

Or <cr,lf>NO CARRIER<cr,lf>

Due to a known issue in the Bluetooth RFCOMM stack, it is not possible to make more than 65525

outgoing connections in a single power up session. Therefore if that number is exceeded, then the connection attempt will fail with the following response:-

Response: <cr,lf>CALL LIMIT

Or <cr,lf>NO CARRIER<cr,lf>

In that case, issuing an ATZ to reset the device will reset the count to 0 and more connections are possible.

The following RFCOMM based UUIDs are dened in the Bluetooth Specication:-

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PROFILE NAME UUID

Serial Port 0x1101

LAN Access Using PPP 0x1102

Dialup Networking 0x1103

IrMC Sync 0x1104

OBEX Object Push 0x1105

OBEX File Transfer 0x1106

IrMC Sync Command 0x1107

Headset 0x1108

Cordless Telephony 0x1109

Intercom 0x1110

Fax 0x1111

Audio Gateway 0x1112

WAP 0x1113

WAP_CLIENT 0x1114

Laird Technologies

BTM410/411

Bluetooth® AT Data Module

CONFIGURING THE BTM410/411

6. ATD<U><Y>L {Remake Connection}

Make a connection with the same device and service as that specied in the most recent ATD command. The <UY> modiers are optional. An error will be returned if the ‘L’ modier is specied AND a Bluetooth address.

If both ‘L’ and ‘R’ modiers are specied then an error will be returned.

Response: <cr,lf>CONNECT 123456789012 AE<cr,lf>

Or <cr,lf>NO CARRIER<cr,lf>

7. ATD<U><Y>R{MakeConnectiontopeerspeciedinAT+BTR}

Make a SPP connection with the device address specied in the most recent AT+BTR command. The service is as specied in S Register 101. The <UY> modiers are optional. An error will be returned if the ‘R’ modier is specied AND a Bluetooth address.

If both ‘R’ and ‘L’ modiers are specied then an error will be returned.

Response: <cr,lf>CONNECT 123456789012 AE<cr,lf>

Or <cr,lf>NO CARRIER<cr,lf>

8. ATEn {Enable/Disable Echo}

This command enables or disables the echo of characters to the screen. A valid parameter value will be written to S Register 506.

E0 Disable echo.

E1 Enable echo.

All other values of n will generate an error.

Response: <cr,lf>OK<cr,lf>

Response: <cr,lf>ERROR nn<cr,lf>

9. ATH {Drop Connection}

Drop an existing connection or reject an incoming connection indicated by unsolicited RING messages.

Response: <cr,lf>NO CARRIER<cr,lf>

10. ATIn {Information}

This will return the following information about the Laird Technologies device.

I0 The product name/variant.

I1 The CSR rmware build number.

I2 The Laird Technologies rmware build number. For internal use only.

I3 The Laird Technologies rmware revision.

I4 A 12 digit hexadecimal number corresponding to the Bluetooth address of the device.

I5 The manufacturer of this device.

I6 The maximum size of trusted device database.

I7 The manufacturer of the Bluetooth chipset.

I8 The chipset format.

I9 0 if not in a connect state and 1 if in a connect state.

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BTM410/411

Bluetooth® AT Data Module

CONFIGURING THE BTM410/411

I11 The reason why a “NO CARRIER” resulted in the most recent attempt at making an outgoing connection.

Where the response values are as follows:

0 = No prior connection 1 = Connection timeout 2 = Connection attempt cancelled 3 = Normal disconnection 4 = Peer device has refused connection

5 = Service prole <uuid> requested not available on remote device

6 = Connection has failed

32 = ATH was entered

33 = Incoming connection aborted because too many rings

34 = Unexpected incoming connection

35 = Invalid address 36 = DSR is not asserted 37 = Call limit of 65531 connections has been reached 38 = Pairing in progress 39 = No link key 40 = Invalid link key 255 = Unknown Reason

I12 The last ERROR response number.

I13 The Sniff status is returned as follows:-

Response: <cr,lf>a:b,c,d,e<cr,lf>OK<cr,lf>

Where ‘a’ = 0 when not online and 1 when online and Sniff has been enabled, ‘b’ is the Sniff Attempt parameter, ‘c’ is the Sniff timeout parameter, ‘d’ is the minimum sniff interval and ‘e’ is the maximum sniff interval. All parameters ‘b’, ’c’, ’d’ and ‘e’ are given as Bluetooth slots which are 625 microseconds

long converted from values of S Registers 561, 562, 563 and 564 respectively.

I14 The current boot mode (Only for rmware 1.18.0 and newer)

I15 The maximum length of an AT command, including the terminating carriage return

(only for rmware 1.6.10 and newer)

I16 The size of AT command input buffer

I20 Returns the number of bytes pending to be sent in the rf buffer when a connection is up.

I33 Version number of Multipoint application (Note: ATI is provided for compatibility in multipoint mode,

other AT commands are not available).

I42 State information. Where the response values are as follows:

13 = NotOpen 14 = OpenIdle 15 = Ringing 16 = OnlineCommand

172 to 177 = waiting for connectable and/or discoverable where the lowest signicant digit equates to

the value stored in S Register 512 or 555.

Note when n=16, ATI9 will return 1.

I101 The RSSI value in dBm. If a connection does NOT exist then a value of -32786 is returned. A value of 0

means the RSSI is within the golden range this is quite a large band, therefore RSSI is not always a useful

indicator. Use ATI111 instead which returns the bit error rate.

I111 Returns LinkQual which in the CSR chipset is dened as BER (bit error rate). This returns a value which

is the number of bits in error out of 1 million. Hence a value of 0 is best, and larger values are worse. As the value approaches 1000 (BER = 0.1%) it is an indication that the link is very bad and a large number of Bluetooth packets are being lost.

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Laird Technologies

BTM410/411

Bluetooth® AT Data Module

CONFIGURING THE BTM410/411

For recognised values of n. All other values of n will generate an error.

Response: <cr,lf>As Appropriate<cr,lf>OK<cr,lf>

Response: <cr,lf>ERROR nn<cr,lf>

11. ATO {Enter Data Mode} (letter ‘o’)

Return to data mode. Assume that the module is in data mode after OK is received. Responds with an error if there is no Bluetooth connection.

Response: <cr,lf> CONNECT 123456789012<cr,lf>

Response: <cr,lf>ERROR nn<cr,lf>

12. ATSn=m {Set S Register}

As with modems, the Bluetooth module employs a concept of registers which are used to store

parameters, such as escape sequence character, inquiry delay time etc, as listed in detail below.

The value part ‘m’ can be entered as decimal or hexadecimal. A hexadecimal value is specied via a ‘$’ leading character. For example $1234 is a hexadecimal number.

When S register values are changed, the changes are not stored in non-volatile memory UNTIL the

AT&W command is used. Note that AT&W does not affect S registers 520 to 525 or 1000 to 1010

as they are updated in non-volatile memory when the command is received.

S0 1 -1..15 Number of RING indication before automatically answering an incoming

connection. A value of 0 disables autoanswer. If -1, then autoanswer on one RING and do NOT send RING/CONNECT response to the host. This emulates a serial cable replacement situation.

Setting values >= 0, resets S Register 504 to 0 and <0 forces 504 to 1.

If S0 <> 0 and S100 <> 0 then S0 must be < S100. If a value is entered which violates this rule, then ERROR 29 is sent in response.

If S504 =1 then this register will return -1, regardless of the actual value stored in non-volatile memory.

S2 0x5E 0x20..0x7E Escape sequence character. It is not ‘+’ by default as a Bluetooth serial link

can be used to connect to a mobile phone which exposes an AT command set, which will in turn use ‘+’ as default. So if both used ‘+’ there will be confusion. 0x5e is the character ‘^’.

S12 100 40..5000 Escape sequence guard time in milliseconds, with a granularity of 20ms.

New values are rounded down to the nearest 20ms multiple

S100 15 0..15 Number of RING indications before an auto disconnection is initiated. A value

of 0 disables this feature.

If S0 <> 0 and S100 <> 0 then S0 must be < S100. If a value is entered which violates this rule, then ERROR 29 is sent in response.

S101 $1101 0..$ffff UUID of default SPP based prole when not specied explicitly in the

ATD command.

S102 1 1 Denes a set of bits masks for enabling prole servers. Values can be ORed.

1 is the default and only value allowed for this module which enables Serial

Port Prole

S103 1 1..7 Boot Mode on cold boot. S126 ? 0 .. 0xFFFF Primer for changing to Multipoint mode S127 ? 0 .. 0xFFFF 0x100 for At mode

0x200 for Multipoint mode

Other values are reserved

S500 0 0..1 Authentication for outgoing connections. Set to 1 to Enable Authentication.

S501 0 0..1 Encryption for outgoing connections. Set to 1 to Enable Encryption.

S502 0 0..1 Authentication for incoming connections. Set to 1 to Enable Authentication.

S503 0 0..1 Encryption for incoming connections. Set to 1 to Enable Encryption.

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Ezurio 410B User Manual

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User Manual