CB-OBS433I-02-0 ConnectBlue, CB-OBS433I-02-0 Datasheet - Page 37
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CB-OBS433I-02-0
Manufacturer Part Number
CB-OBS433I-02-0
Description
SERIAL PORT ADAPTER BLUETOOTH
Manufacturer
ConnectBlue
Specifications of CB-OBS433I-02-0
Frequency
2.402GHz ~ 2.48GHz
Data Rate - Maximum
115 kbps
Modulation Or Protocol
Bluetoothv2.1+EDR
Applications
General Purpose
Power - Output
17dBm
Sensitivity
-94dBm
Voltage - Supply
3.3 V ~ 6 V
Current - Receiving
200mA
Current - Transmitting
200mA
Data Interface
Connector, 2 x 10 Header, 2 mm Pitch
Antenna Connector
On-Board, Chip
Operating Temperature
-40°C ~ 85°C
Package / Case
Module
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
809-1038
connectBlue
Copyright © 2010 connectBlue AB
Figure 21: UART mode selected together with a red LED in a 5V host system. The status of the signal can also be used as input
to a host controller.
Only a pull-down on the RED/Mode pin is needed if UART logic level mode is used but no red LED is required. The RED/Mode pin can
be left unconnected if RS232 (default) is used and no red LED required.
The GREEN/Switch-1 signal is a multiplexed signal:
The signal is internally pulled-up (see
default values.
If a LED is used and a switch is required to be able to restore the settings, a high impendence buffer need to prevent the signal from
being pulled-up via the LED. See Figure 22-23 and the
Sometimes, over time, switch contacts can get an oxide layer. This may cause the closed switch resistance to become too high to sink
the signal to logic LOW because the signal is internally pulled-up (see
Figure 27.
10.2.3.3 GREEN/Switch-1 signal
GREEN - Logic green LED signal (see the
time can be up to 2 seconds (see the Serial Port Adapter AT Commands specification).
Switch-1 - The module reads the status of the signal at startup to decide if the serial interface settings shall be restored (LOW).
The module will restore all factory settings if both the Switch-1 and Switch-0 signals are low during start up. See the Serial Port
Adapter AT Commands specification for more details. The input signal must be stable for the first 700ms after startup (after
reset/power on reset).
NOTE
The internal pull-up is changed compared to previous product generations from connectBlue. See the
Bluetooth cB-OEMSPA3xx to cB-OBS4xx products
Input/Output signals
Operating status
Logic Levels
) to the internal voltage supply (see
section for more information.
section). Becomes valid after the module has started up. The startup
section for buffer selection.
Input/Output signals
). A design that prevents this can be found in
Power supply
) for NOT restoring settings to
Migrating from
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