BLUETOOTH MODULE SH-04 for Bluetooth turn serial

Specifications

BLUETOOTH MODULE SH-04 for Bluetooth turn serial
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BLUETOOTH MODULE SH-04 for Bluetooth turn serial:

 

Product Overview
SH-04 Bluetooth Serial core modules  This design uses CSR's
Bluetooth chips, V2.0 protocol standards, industry-standard
28mm x 15 mm x 2.35mm, the volume size of a compact, self-efficient
on-board antenna, transparent serial port with a variety of
Bluetooth adapter, paired Bluetooth mobile phone use, but also the
use of a pair of master and slave.
SH-04 Bluetooth serial module with a backplane, This design is
a SH-04 module, coupled with external circuit based on the floor,
the working voltage is from 3.3V to 5V, leads to TTL, and 232,
matching the success of the signal LED pin, the host module also
leads to re-search for new slaves pin (default master and slave
memory matching addresses will be down, if the next time there are
multiple simultaneous Bluetooth, the host will automatically find
previously paired off from the machine, if the high electrical pulse
to this pin is to give up memory).
The software contains the factory default AT command set, as
detailed in point 6 of the instructions.
2. the circuit interface
RS232 serial port (TTL level), (also equipped with a floor-level
serial port.