ST STEVAL-BTDP2 User manual

June 2017
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www.st.com
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User manual
Getting started with the STEVAL-BTDP2 USB dongle
Introduction
The STEVAL-BTDP2 evaluation board (dongle) has an embedded Bluetooth®class SPBT3.0DP2
module and includes a USB connector. The USB connector allows PC access to the Bluetooth module
and supplies power to the dongle.
The STEVAL-BTDP2 allows testing and working with the SPBT3.0DP2 module, so users can familiarize
themselves with the firmware and create Bluetooth links with simple AT commands.a
Figure 1: STEVAL-BTDP2 evaluation board
a
The AT command list is detailed in user manual UM2077 on www.st.com

Contents
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Contents
1Overview ..........................................................................................4
2Getting started.................................................................................5
2.1 Installing the drivers on host PC........................................................5
2.2 Two dongle communication ..............................................................7
2.2.1 Connection procedure ........................................................................ 8
3Revision history ............................................................................11
Appendix A USB driver installation..............................................12

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List of figures
Figure 1: STEVAL-BTDP2 evaluation board ..............................................................................................1
Figure 3: USB drive installation first and second step................................................................................5
Figure 4: Wizard installation - first step.......................................................................................................5
Figure 5: Wizard installation - second step.................................................................................................6
Figure 6: Wizard installation third step........................................................................................................6
Figure 7: Wizard installation completed......................................................................................................6
Figure 8: Windows device manager ...........................................................................................................7
Figure 9: Two dongle communication setup...............................................................................................7
Figure 10: Connection setup.......................................................................................................................8
Figure 11: Port selection.............................................................................................................................8
Figure 12: Port parameters.........................................................................................................................9
Figure 13: Connection properties setup......................................................................................................9
Figure 14: AT command prompt...............................................................................................................10
Figure 15: BDAddress dongle1, dongle2..................................................................................................10
Figure 16: USB driver installation launch..................................................................................................12
Figure 17: License agreement..................................................................................................................12
Figure 18: Wizard installation - 1 ..............................................................................................................13
Figure 19: Wizard installation - 2 ..............................................................................................................13
Figure 20: Wizard installation - 3 ..............................................................................................................13
Figure 21: Wizard installation terminated .................................................................................................14
Figure 22: Installation completed..............................................................................................................14

Overview
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1 Overview
The SPBT3.0DP2 features:
SPBT3.0DP2 V3.0 Bluetooth class 2 module
with embedded antenna
USB interface and power supply
Reprogramming support via USB interface
Reset button
RoHS compliant
The default settings are:
UART: 115200 baud rate, no parity, 1 stop bit, 8 data bits
Local name: "ST BTC3.0 Module"
Profile: SPP (serial port profile)
Deep sleep: disabled
Page and inquiry scan: 1.28 s interval, 11 ms duration
Security: disabled
Bonding PIN: "1234"
Bonding allowed: always enabled

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Getting started
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2 Getting started
2.1 Installing the drivers on host PC
To install the drivers on your PC, follow the procedure shown below.
No drivers need to be installed on the Bluetooth SPBT3.0DP2 module or the
evaluation board.
Step 1
Plug the STEVAL-BTDP2 into any available USB port: the computer will automatically
find the devices shown below.
Figure 2: USB drive installation first and second step
Step 2
A Found New Hardware Wizard installation window opens:
- select Yes, this time only to locate the drivers from the Microsoft®website
- click Next to confirm the installation of the identified STEVAL-BTDP2 USB to UART
controller and virtual COM port driver
Figure 3: Wizard installation - first step

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Figure 4: Wizard installation - second step
Step 3
The Found New Hardware Wizard opens again to install the USB device driver:
- select Yes, this time only to locate the drivers from the Microsoft website
Figure 5: Wizard installation third step
Figure 6: Wizard installation completed
Step 4:
Open the Windows®device manager application to verify correct installation and
check which COM port is assigned to the STEVAL-BTDP2 Bluetooth serial
device
b
.The STEVAL-BTDP2 is usually assigned the same virtual COM port each
time it is inserted (unless there are other virtual COM devices altering port
assignments).
b
If the USB driver wizard installation fails, find the alternative installation procedure in the Appendix.

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- check that two device drivers for the STEVAL-BTDP2 Bluetooth are shown
here.
Figure 7: Windows device manager
The CP2102 chip ensures standard UART serial communication from the computer via the
universal serial bus and interfaces directly with the Bluetooth module in the Bluetooth
serial adapter.
2.2 Two dongle communication
Two Bluetooth STEVAL-BTDP2 dongles on separate PCs can be implemented for the
development of applications involving cable-free communication.
Figure 8: Two dongle communication setup

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2.2.1 Connection procedure
The dongles used in the connection have separate BD addresses. In our example they are
0080e1f00001 (dongle2) and 0080e1f00002 (dongle2).
Two dongle connection procedure
Step 1
Plug each dongle into a PC using the USB connector
Step 2
Open the HyperTerminal program on both PCs and create a new connection and
configure it as shown below.
Figure 9: Connection setup
Figure 10: Port selection

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Figure 11: Port parameters
Step 3
From the menu file set the AT command connection properties.
Figure 12: Connection properties setup
The dongle is ready to use.

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Step 4
Press the reset switch on the dongle: on the screen, the prompt followed by the
module Bluetooth address should appear:
Figure 13: AT command prompt
Figure 14: BDAddress dongle1, dongle2
The user can now operate the dongle through the AT commands.