User's Manual

However, the printer usually works only on receiving data, it doesn’t have to respond anything
back to the host , then TXD signal can be ignored , and then the connection can be sampled as
following:
Printer
Host
RXD
TXD
GND
GND
4-2. Bluetooth Connection
Bluetooth is a proprietary open wireless technology standard for exchanging data over short
distances (using short-wavelength radio transmissions in the ISM band from
2400–2480 MHz) from fixed and mobile devices, creating personal area networks (PANs)
with high levels of security.
4-2-1. Bluetooth specification
Using blueCore4-Ext chipset, fully compatible with Bluetooth 2.0;
High-sensitivity receive signal, small size, lower consumption
Supporting 1200bps ~ 1382400bps variety of baud rate;
Supporting SPP agreement, the maximum transfer speed is up to 3Mbit / s;
4-2-2. Use “AT” command to modify Bluetooth Module’s parameters
Notice: The following changes can’t be done by user, these should be done in factory by
Manufacturer. So if user wants to change these parameters, please inform our sales person
before ordering our printers.
Modify name---Send character string “AT+NAMEXXXX, feedback “Okname”;
For example, if you want change name to “LY58”, please send string “AT+NAMELY58”.
Modify PIN code--- Send character string “AT+PINXXXX, feedback “Oksetpin”;
For example, if you want change PIN code to “8888”, please send string”AT+PIN8888”.
(Note: Default PIN code is “1234”, you only can reset PIN code with four figures.)
Clear Bluetooth address--- Send character string “AT+CLR00”, feedback “Okclear”;
Modify baud rate--- Send character string “AT+BAUDX, feedback “Ok+current baud rate”;
X represents the baud rate code, as following:
1-----1200 7------57600