Laird BTM410-411 Family Developer Kit DVK User Guide

Laird BTM410-411 Family Developer Kit DVK

Product Information

The Laird Technologies OEM BTM41x family Developer Kit (DVK) is a wireless Bluetooth module that allows for radio configuration reading and data throughput testing between two radios. The kit includes updated datasheets and firmware, which can be obtained from the Laird Technologies website. In addition, a Windows PC running Windows XP SP2 or later is required for usage.

What’s in the Box:

• Laird Technologies OEM BTM41x family Developer Kit (DVK)
• Updated datasheets and firmware (available at www.lairdtech.com/wireless)
• Windows PC running Windows XP SP2 or later

Bluetooth USB Dongle Installation:

1. Uninstall all third-party Bluetooth stacks, drivers, and devices from your PC.
2. Plug the Laird Technologies USB dongle into the PC. Windows XP SP2 will detect the device and open an installation window.
3. Follow the on-screen instructions to install the standard Microsoft Bluetooth driver.
4. Open the Windows Device Manager.
5. Verify that the Microsoft Bluetooth Enumerator and TDK Bluetooth USB Adaptor are installed. Refer to Figure 1 for confirmation.

Note:
The Microsoft Bluetooth 2.0 driver for the Laird Technologies USB Dongle requires at least Windows XP SP2. Windows Vista SP1 and Windows 7 support Bluetooth 2.1, but no Bluetooth 2.1 driver is available for Windows XP. The USB dongle only supports Bluetooth 2.0+EDR and does not have Bluetooth 2.1 functionality on Windows Vista or 7.

Development Board Setup:

1. Connect the USB Cable (used for power and communications) from the PC to the development board.
   • On the first connection, install the USB to the RS232 driver by downloading the latest WHQL-qualified driver from www.ftdichip.com.
   • Point the Windows driver install wizard to the location of the downloaded driver.
   • Optionally, power the device via 5 V DC.
2. Select the power source via the 3-way switch:
   • Center = off
   • DC = power via USB
   • USB = power via DC
3. Start EZURiO Terminal.
4. Select the correct COM Port (refer to Device Manager, if necessary).
5. Select BAUD rate (default is 9600 bps).
6. Check the CTS LED in the EZURiO Terminal. If it is green, it is connected to the correct COM port.

AT Mode Basic Command Reference:

Data Connection (PC - > BTM41X):

1. Set up the module:
2. Start EZURiO Terminal (included on CD or downloadable from www.lairdtech.com/wireless).
3. Enter the following commands:
   • AT&F* – reset to factory defaults
   • ATS512=4 – make the device discoverable and connectable
   • ATS0=1 – auto answer after 1 ring
   • AT+BTK=1234 – set the pin code
   • AT&W – save the settings to flash memory
   • ATZ – software reset the device
4. If you don’t see Bluetooth devices, your USB dongle is not properly installed. Either the installer.

OVERVIEW

This quick start guide for the Laird Technologies OEM BTM41x family Developer Kit (DVK) illustrates how to read the radio’s configuration and perform a data throughput test between the two radios. For more detailed information on these steps, refer to the DVK User’s Manual or the Radio User’s Manual.

WHAT’S IN THE BOX

• BTM41x Development Board
• USB Cable
• Whip Antenna (only for BTM410)
• Bluetooth® USB dongle
• Software CD
  • EZURiO Terminal
  • FTDI USB to RS232 driver
  • BTM41x datasheet
  • Laird Technologies Bluetooth® line card

Updated datasheets and firmware are available at www.lairdtech.com/wireless. Additionally, you need a Windows PC running Windows XP SP2 or later.

BLUETOOTH USB DONGLE INSTALLATION

1. Uninstall all third-party Bluetooth stacks, drivers and devices from your PC.
2. Plug the Laird Technologies USB dongle into the PC. Windows XP SP2 detects the device and opens an installation window.
3. Follow the on-screen instructions to install the standard Microsoft Bluetooth driver.
4. Open the Windows Device Manager.
5. Verify that the Microsoft Bluetooth Enumerator and TDK Bluetooth USB Adaptor are installed.

Note:
You must have at least Windows XP SP2 to install the Microsoft Bluetooth 2.0 driver for the Laird Technologies USB Dongle. Windows Vista SP1 and Windows 7 support Bluetooth 2.1. Microsoft does not provide a Bluetooth 2.1 driver for Windows XP. Since the USB dongle only supports Bluetooth 2.0+EDR, it does not have Bluetooth 2.1 functionality on Windows Vista or 7.

DEVELOPMENT BOARD SETUP

1. Connect the USB Cable (used for power and communications) from the PC to the development board.
   • On the first connection, you must install the USB to RS232 driver. Download the latest WHQL-qualified driver from www.ftdichip.com.
   • Point the Windows driver install wizard to the location of the downloaded driver.
   • Optionally, you can power the device via 5 V DC.
2. Select the power source via the 3-way switch.
   • Center = off
   • DC = power via USB
   • USB = power via DC
3. Start EZURiO Terminal.
4. Select the correct COM Port (refer to Device Manager, if necessary).
5. Select BAUD rate (default is 9600 bps).
6. Check the CTS LED in the EZURiO Terminal. If it is green, it is connected to the correct COM port.

AT MODE BASIC COMMAND REFERENCE

Command/Response

• AT OK
• ATI3 Firmware version number
• ATI4 Bluetooth Address
• AT+BTIN List discoverable Bluetooth devices with a friendly name
• AT&F* Reset to factory default
• AT&W Save settings to non-volatile memory
• ATZ Software reset
• ATD Call BT device
• ATH Hang up the connection
• ^^^ Local Command Mode

DATA CONNECTION

DATA CONNECTION (PC - > BTM41X)

Set up the module:

1. Start EZURiO Terminal (included on CD or downloadable from www.lairdtech.com/wireless).
2. Enter the following commands:
   • AT&F* // reset to factory defaults
   • ATS512=4 // make device discoverable and connectable
   • ATS0=1 // auto answer after 1 ring
   • AT+BTK=”1234” // set the pin code
   • AT&W // save the settings to flash memory
   • ATZ // software reset the device
3. Open Bluetooth devices (Control Panel –> Bluetooth devices).
4. If you don’t see Bluetooth devices, your USB dongle is not properly installed. Either the installer failed or you have a third-party driver installed. Please follow the steps for USB Installation.
5. Click Add Device.
6. Search for available devices, then select the desired device.
7. Select the BTM41x module.
8. Enter the passkey. This is the pin code setup above in step 2 using the AT+BTK command.
9. The wizard displays incoming and outgoing ports that have been opened (Figure 2).

DATA CONNECTION (BTM41X - > PC )

To set up the module, complete the following steps:

1. Start EZURiO Terminal.
2. Enter the following commands:
   • AT&F* // reset to factory defaults
   • ATS512=4 // make device discoverable and connectable
   • ATS0=1 // auto answer after 1 ring
   • AT+BTK=”1234” // set the pin code
   • AT&W // save the settings to flash memory
   • ATZ // software reset the device.
   • AT+BTIN // scan for discoverable Bluetooth devices
   • AT+BTW
3. On the PC, a pop-up balloon appears saying “Incoming connection.” Enter your passkey (“1234” in the example above, set with AT+BTK). Your devices should now be paired.
4. Go to Control Panel > Devices > COM port tab and add an incoming COM port.
5. Use the EZURiO Terminal to open the incoming COM port.
6. Notice that the CSR and DSR LEDs are red on the EZURiO Terminal.
7. Send the following command to the module: ATD (The ID is found by searching for discoverable devices using the AT+BTIN command.)
8. The connection is auto-accepted by the PC. If CSR and DSR LEDs are green, the connection is active.
9. Use ^^^ to escape to command mode and enter ATH to hang up the connection.

DATA CABLE REPLACEMENT

Set up the module:

1. Start EZURiO Terminal. Enter the following commands.
   • AT&F* // reset to factory defaults
   • ATS512=1 //Turn on the radio
   • ATS505=3 // connection attempt timeout
   • ATS530=5000 // reconnect delay
   • ATS535=2 // Link supervision timeout
   • AT+BTK=”1234” // set the pin code
   • AT+BTW // to initiate the pairing process
   • AT+BTT // to store the cached link key
   • AT+BTR
   • AT&W // save the settings to flash memory
   • ATZ // software reset the device.
2. Turn off the module.

On the PC:

1. A pop-up message on your PC appears saying “Incoming Connection.” Enter your passkey (“1234” in the example, configured with AT+BTK). Your devices should now be paired.
2. Click Control Panel >Devices > COM Port.
3. Add an incoming COM port.
4. Use the EZURiO Terminal to open the incoming COM port. Notice the CSR and DSR LEDs are red.
5. Power on the BTM41x board. It automatically connects to a USB dongle and the DCD LED is green when connected.

EZURIO TERMINAL COM PORT SETTINGS

REVISION HISTORY

Embedded Wireless Solutions Support

• Center: http://ews-support.lairdtech.com
• www.lairdtech.com/bluetooth.
• Americas: +1-800-492-2320
• Europe: +44-1628-858-940
• Hong Kong: +852 2923 0610

References

• Support
• Home - FTDI
• Bluetooth Modules
• Wireless Modules

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