DVK-BTM411 Laird Technologies, DVK-BTM411 Datasheet - Page 21

• Manufacturer Part Number: DVK-BTM411
• Description: BLUETOOTH EVAL BOARD BTM411
• Manufacturer: Laird Technologies
• Type: Transceiverr

Specifications of DVK-BTM411

• Frequency: 2.4GHz
• Wireless Frequency: 2.402 GHz to 2.48 GHz
• Interface Type: UART
• Data Rate: 2.1 Mbps
• Operating Voltage: 3 V to 3.3 V
• Antenna: Multilayer Ceramic Integrated
• Operating Temperature Range: - 30 C to + 70 C
• Output Power: 4 dBm
• Technology/ Type: Development Kit
• For Use With/related Products: BTM411
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: DVK-BTM411

BTM410/411
Bluetooth
AT COMMAND SET
REFERENCE
21 www.lairdtech.com
®
AT Data Module
7. AT+BTW<bd_addr>
8. S Registers for Secure Simple Pairing
This command initiates secure simple pairing (dedicated bonding) with a device whose Bluetooth
address is <bd_addr>. The correct term for this command’s action with respect to the Bluetooth
specification 2.1+EDR [1] is “Dedicated Bonding”.
Dedicated bonding means the exchange of link keys (pairing) without creating a connection to a
particular profile or service immediately.
The remote device must be a Bluetooth 2.1 device, otherwise (BT2.0 or earlier) legacy pairing will occur
automatically if S323=0. For legacy pairing please refer to page 23.
The “OK” response is sent immediately on receipt of the AT+BTW command. Depending on the
combination of IO-capabilities of both devices, one of the asynchronous messages from Table 3.7
might appear during the pairing process. Please refer to that table for the required actions.
On pairing completion, an unsolicited message in the form PAIR n <bd_addr> will be sent to the host.
The following table lists all S Registers for Secure Simple Pairing. For the registers’ details please refer
to their descriptions above.
Register
S320
S321
S322
S323
S324
Default
2
1
0
0
90
Table 3.6: S-Registers for Secure Simple Pairing (SSP)
Range
1..3
0..4
0..1
0..1
1..255
{Initiate SSP}
Comment
Security Level: see [1], vol3, Generic Access Profile - Table 5.7
needs subsequent ‘AT&W’ and power cycle to take effect
value = 3 overwrites S322
Set IO capability:
0 – display only
1 – display yes no
2 – keyboard only
3 – no input no output
4 – reject IO-cap requests
Force man-in-the-middle-protection (MITM):
0 – disabled
1 – enabled
referenced only if security level (S320) < 3
Disable legacy (pre-BT2.1) Pairing:
0 – legacy pairing enabled
1 – legacy pairing disabled
Secure Simple Pairing timeout in s
This value must be at least 60 in order to meet the recom-
mendation of BT2.1 specification
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