STEVAL-SPBT2ATV3
USB dongle for the Bluetooth® class 2 SPBT2532C2.AT2 module
Data brief
Features
■
Based on the SPBT2532C2.AT2 class 2
module
■
Bluetooth® specification compliant V2.1+EDR
■
USB interface and power supply
■
Supported reprogrammability via USB
interface
■
SMD antenna and reset button onboard
■
User interface: AT2 command set supporting
data communication with Android smartphone
and Apple iOS Bluetooth® enabled devices
■
RoHS compliant
Description
The STEVAL-SPBT2ATV3 demonstration board is
a design tool to evaluate the SPBT2532C2.AT2
module in a quick and simple way.
The dongle includes the RF antenna and the USB
connector.
The USB connector is used to connect the dongle
to a PC, to access the Bluetooth® module, and to
supply the dongle.
The STEVAL-SPBT2ATV3 includes downloaded
FW, enabling the user to create a Bluetooth® link
with simple AT commands.
The AT command list is detailed in the user
manual UM1547.
The AN3189 application note describes how to
get started with the STEVAL-SPBT2ATV3.
The SPBT2532C2.AT2-based dongle is a
demonstration tool only, to be used strictly for
evaluation purposes. It is not a product in itself.
June 2012
Doc ID 023242 Rev 2
For further information contact your local STMicroelectronics sales office.
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www.st.com
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Recommended operating conditions
1
STEVAL-SPBT2ATV3
Recommended operating conditions
Table 1.
Recommended operating conditions
Symbol
Parameter
Conditions
Min.
Typ
Max
Unit
VDD
Board supply voltage
-40 °C < T < 85 °C
4
5
6
V
Top
Operating case temperature range
+85
°C
2
I/O connections
2.1
PAD description
-40
Other than the USB plug, some pads are also available. In fact TP1 and TP2 pads make the
SPBT2532C2.AT2 pins available to the user.
Figure 1.
Available pads
Table 2 lists the meaning of these pads.
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Doc ID 023242 Rev 2
STEVAL-SPBT2ATV3
Table 2.
I/O connections
Pad connections
Pads
Description
1
Reset - connected in parallel to onboard reset switch
2
SPBT2532C2.AT2 supply voltage
3
Boot pin - used for firmware downloading - used for testing purposes
4
GPIO01 - general purpose I/O – LED5 is connected to this pin
5
GPIO02 - general purpose I/O – LED4 is connected to this pin
6
GPIO03 - general purpose I/O – LED3 is connected to this pin
7
GPIO04 - general purpose I/O – LED2 is connected to this pin
8
GND
9
GND
10
USB + (5 V)
11
GND
12
Used for testing purposes
13
Used for testing purposes
14
Used for testing purposes
15
Used for testing purposes
16
Used for testing purposes
17
Used for testing purposes
18
3.3 V
TP
2.2
Reset switch
A reset switch SW1 is present on the dongle. When SW1 is pushed SPBT2532C2.AT is
forced to reset.
The following prompt is displayed on the screen:
●
AT-AB - command mode
●
AT-AB BDAddress xxxxxxxxxxxx
Doc ID 023242 Rev 2
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I/O connections
Figure 2.
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STEVAL-SPBT2ATV3
Reset switch
Doc ID 023242 Rev 2
STEVAL-SPBT2ATV3
3
Dongle layout
Dongle layout
Figure 3.
Dongle component layout
Doc ID 023242 Rev 2
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Dongle schematic
STEVAL-SPBT2ATV3
Dongle schematic
Dongle electrical drawing
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Revision history
Revision history
Table 3.
Document revision history
Date
Revision
Changes
11-Jun-2012
1
Initial release.
25-Jun-2012
2
– Title and description modified to improve readability
– Added: Section 1: Recommended operating conditions and
Section 2: I/O connections
Doc ID 023242 Rev 2
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STEVAL-SPBT2ATV3
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