User Manual Product Name: Bluetooth module Model Name: DX-BT19-S Manufacture: SHEN ZHEN DX-SMART TECHNOLOGY CO.
DX-BT19-S 蓝牙技术手册 Table Of Contents 1、Overview .................................................................................................................17 2、Module Default Parameters .................................................................................17 3、Application Area....................................................................................................18 4、Power consumption parameters...........................................................................
DX-BT19-S 蓝牙技术手册 1．Overview DX-BT19 4.0 Bluetooth module is built by Shenzhen DX-SMART Technology Co., Ltd. for intelligent wireless data transmission. It adopts CC2541 chip of American TI Company, configures 256Kb space, and follows V4.0 BLE Bluetooth specification. Support AT command, users can change the serial port baud rate, device name, pairing password and other parameters as needed, flexible use. This module supports UART interface and supports Bluetooth serial port transparent transmission.
DX-BT19-S 蓝牙技术手册 3．Application area: DX-BT19 module supports BT4 .0 BLE protocol, which can be directly connected to iOS devices that have BLE Bluetooth function, and supports background program resident operation.
DX-BT19-S 蓝牙技术手册 Transmission interval (ms) 70 Throughput (bytes/s) 2500 Characteristic Write Write without Response iPhone 6 ->BT19 -> UART Baud rate 70 Transmission interval (ms) 2800 Throughput (bytes/s) Characteristic Notify Notify UART ->BT19 -> iPhone 6 115200 115200 Baud rate Connection interval (ms) 30 Connection interval (ms) 30 Serial packet size (bytes) 100 Serial packet size (bytes) 200 Transmission interval (ms) 50 Transmission interval (ms) 120 Throughput (bytes/s)
DX-BT19-S 蓝牙技术手册 2 UART_TX Serial data output 3 UART_CTS NC 4 UART_RX Serial data input 5 P2_1 Debug data port 6 P2_2 Debug clock port 7 SCL Clock port 8 SDA Data port 9 VCC 3.3 V 10 NC NC 11 RESETB Low level reset, at least 5ms 12 GND Land 13 P1_1 Bluetooth connection indicator (not connected low, connection high) 14 P1_0 Programmable input and output port 15 P1_2 LED light pin 16 P1_3 SW1 system button, 9．Detailed description of function pins: 1.
DX-BT19-S 蓝牙技术手册 Input 200ms low pulse Interrupt connection, module enters standby 10．Dimensions: 11．LAYOUT Precautions: The DX-BT19 Bluetooth module works in the 2.4G wireless band. It should try to avoid the influence of various factors on the wireless transceiver. Pay attention to the following points: 1. the product shell surrounding the Bluetooth module to avoid the use of metal, when using part of the metal shell, should try to make the module antenna part away from the metal part. 2.
DX-BT19-S 蓝牙技术手册 12. AT COMMAND (Note: AT command mode when the module is not connected) 1. AT command, which belongs to the character line instruction, is parsed according to the line (that is, AT command must be returned by carriage return or \r\n, hexadecimal number is 0D0A) 2. The AT command supports case and the instruction prefix is AT+, which can be divided into parameter setting instructions and read instructions. 3.
DX-BT19-S 蓝牙技术手册 1、Test Command: Function Command Response Test instructions AT \r\n OK\r\n Description 2、Get The Software Version: Function Command Response Description Query version number AT+VERSION\r\n +VERSION=\r\n Software OK\r\n version number Note:The version will be different depending on different modules and customization requirements. 3、Set/Query Module Bluetooth MAC: Function Command Response Description Query module MAC AT+LADDR\r\n +LADDR=\r\
DX-BT19-S 蓝牙技术手册 Function Command Response Description Query module Bluetooth AT+NAME\r\n +NAME=\r\n Bluetooth name name, up to 18 bytes Set the module AT+NAME\r\n Bluetooth name >\r\n OK Default name: BT19 Example: 1. Send Settings: AT+NAME=DX-BT19\r\n ——Set module device name：“DX-BT19” return： ——Set module device name：“DX-BT19” successed +NAME=DX-BT19\r\n OK\r\n 2. Send inquiry： ——Query module name AT+NAME\r\n return： ——Return module device name：“DX-BT
DX-BT19-S 蓝牙技术手册 +BAUD=6\r\n OK\r\n 2. Send inquiry： AT+BAUD?\r\n return： +BAUD=6\r\n OK\r\n 6、Set/Query - Serial Port Stop Bit: Function Command Query module serial port AT+STOP\r\n Response +STOP=\r\n stop bit Description < Param> Stop bit 0 -1 Stop bit Set module serial port AT+STOP\r\n +STOP=\r\n 1 -2 Stop bit OK Default：0 7、Set / Query - Serial Parity Bit： Function Query module serial Command Response Description AT+PARI\r\n +PARI=\r\n < Param>
DX-BT19-S 蓝牙技术手册 Notification connection with address code AT+NOTP\r\n m>\r\n OK 1- Notice Defaults：0 10、Settings\Query—SERVICE UUID： Function Command Query service UUID AT+UUID\r\n +UUID =\r\n UUID Set service UUID AT+UUID\r\n Default service >\r\n Response Description UUID:FFE0 OK Example：Set the service UUID to：FE00 1. Send Settings： AT+UUID0XFF00 \r\n return： +UUID=0XFF00 r\n OK 11、Settings\Query—NOTIFY UUID\ WRITE UUID：
DX-BT19-S 蓝牙技术手册 >\r\n OK 13、Settings\Query—Wait for the channel to be established after connecting： Function Command Response Description Query AT+WAIT\r\n +WAIT=\r\n Set AT+WAIT\ +WAIT=\r\n 0: Not wait r\n OK 1: wait Default：0 14、Settings\Query - Low Power Mode: (only slave module is valid) Function Command Query module low AT+PWRM\r\n Response +PWRM=\r\n power mode Set module low power mode Description < Param >(0、1) 0：Low power mode AT+PWRM
DX-BT19-S 蓝牙技术手册 16、Settings\Query - Module transmit power: (only slave module is valid) Function Command Query module transmit AT+POWE\r\n Response +POWE=\r\n : 0：-23 dB power Set module transmit power Description 1：-6 dB AT+POWE +POWE=\r\n \r\n OK\r\n 2: 0 dB Default：2 17、Software restart： Function Command Software restart AT+RESET\r\n Response Description OK\r\n 18、Restore default settings： Function Command Restore default settings AT+DEFAULT \r\n Response
DX-BT19-S 蓝牙技术手册 +INQ:1 0x001583000001 -63\r\n ——Bluetooth device 1 +INQ:2 0x001583000002 -56\r\n 。 。。 +INQE\r\n ——Bluetooth device 2 。 。。 ——End （x represents the quantity） Devices Found x 21、Print search to device list (only master module is valid)： Function Command Response Print list AT+SHOW\r\n Print search to device list Description 22、Settings\Query—Automatically search for Bluetooth devices (only master module is valid)： Function Command Response Description Query module search AT+AU
DX-BT19-S 蓝牙技术手册 Query module AT+AUTOCONN\r\n connection mode Set module connection mode AT+AUTOCONN\r\n +AUTOCONN=(0、1) >\r\n 0：Manual connection +AUTOCONN=\r\n OK 1：Auto connection Default: 0 25、Connect to the remote specified address Bluetooth (only master module is valid)： Function Command Connect a Bluetooth AT+CONA\r\n Response Connection information device Description Param：MAC address Such as: 0x112233445566 26、Bind the specified address to Bl
Single Module FCC Statement FCC standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Integral antenna with antenna gain 0dBi This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
