NOTE - This product will be discontinued and is thus not recommended for new designs. Last order entry date is December 10, 2013. Recommended replacement is OBS421. For more information please see the PCN announcement.
The Bluetooth Serial Port Module 433 supports the Serial Port Profile (SPP) for fast and secure transparent serial data transmissions, and the Personal Area Networking Profile (PAN) for transmission of Ethernet packages over Bluetooth. The high receiver sensitivity and output power enables a range of 1000m. The module supports Bluetooth v2.1+EDR. With the Bluetooth stack embedded you get going quickly as you don't need a driver or stack in the host. The module is Bluetooth qualified and radio type approved for Europe, Japan, US and Canada. It also has the connectBlue interface for compatibility over time and radio technologies.
Classic Bluetooth technology
Bluetooth v2.1+EDR (Qualified and Listed as Product)
Supported Bluetooth Profiles:
Radio, Chipset and Stack
Internal antenna (range & max output power incl. antenna): 800m & 17dBm
External antenna (range & max output power incl. antenna): 1000m & 17dBm
2.4 GHz channels: 1-79
Radio: ST-Ericsson STLC2500DB
Microprocessor: ST STM32F103RC
Stack: connectBlue Embedded Bluetooth Stack
US (FCC/CFR 47 part 15 unlicensed modular transmitter approval)
UART Logic-level or RS232
Via external transceiver, RS422/485 option
Max baud rate: 1.5 Mbit/s
Support for non-standard baud rates
Flow control: CTS/RTS (hardware) or none
9 digital I/O pins
Throughput: 1.4 Mbps
All software embedded in the module (Bluetooth stack and application)
Configurable via AT commands (via Bluetooth or serial port)
Maximum number of slaves: 7 (point-to-point, point-to-multipoint)
connectBlue Low Emission Mode™ for not disrupting other 2.4GHz radios
Extended Data Mode™ for separated multipoint data channels (different data can be sent to / received from each slave)
Quality of Service (QoS)
Customer developed applications can be embedded
Repeater functionality for extended range
iPhone/iPod touch/iPad and Android support:
Power supply voltage: 3.3 - 6.0 VDC
Current consumption (minimum): 0.5 mA @3.3V
Current consumption (average Tx): 50 mA @3.3V
20-pin header connector (optional)
Solder land pads (optional)
JST 6-pin connector (optional)
U.fl. antenna connector (external antenna version only)
Operating temperature: -40°C to +85°C
Dimensions: 23x36x4 mm
Weight: 5 g
Certifications and Compliance
R&TTE Directive 1999/5/EC:
Medical Electrical Equipment:
OBS433 module with internal antenna, board-to-board and 20-pin header connector.
OBS433 module with u.fl. connector for external antenna, board-to-board and 20-pin header connector.
OBS433 module with internal antenna, board-to-board connector and solder pads.
OBS433 module with u.fl. connector for external antenna, board-to-board connector and solder pads.
OBS433 module with internal antenna, JST wire connector, board-to-board connector and solder pads.
OBS433 module with u.fl. connector for external antenna, JST wire connector, board-to-board connector and solder pads.
Accessory kits for evaluation, to be combined with an OBS433 module:
cB-ACC-26 (RS232/9-pin Dsub kit):
OEM Module Adapter 3 with 9-pin Dsub, Serial RS232 cable, USB Power cable, configuration software.
cB−ACC-41 (USB kit):
USB Module Adapter (installs virtual COM-port), USB extension cable, configuration software.
* Requires external hardware connected to the host. For more information, see Bluetooth Serial Port Adapter Compatibility iPhone, iPad and iPod
** JST version limited to -25°C to +85°C