How it Works
SHENZHEN
Loading...
DX-BT19-S
User Manual
17 pgs1.29 Mb0

SHENZHEN DX-BT19-S User Manual

User Manual
Product Name: Bluetooth module
Model Name: DX-BT19-S
Manufacture: SHEN ZHEN DX-SMART TECHNOLOGY CO., LTD
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...........................................................................18
5、Radio frequency characteristics...........................................................................18
6、Transparent Transmission Parameters ..............................................................18
7、Module Pin Description And Minimum Circuit Diagram..................................19
8、Pin Function Description ......................................................................................19
9、Detailed Description Of Function pins.................................................................20
10、Dimensions ...........................................................................................................21
11、LAYOUT
12、AT COMMAND...................................................................................................22
12.1 Test Command .........................................................................................................23
12.2 Get The Software Version…………….....................................................................23
12.3 Query Module Bluetooth MAC……........................................................................23
12.4 Set/Query Device Name...........................................................................................23
12.5 Set/Query - Serial Port Baud Rate............................................................................24
12.6 Set/Query - Serial Port Stop Bit................................................................................25
12.7 Set / Query - Serial Parity Bit…………....................................................................25
12.8
12.9 Set/Query -
12.10
12.11
12.12 Settings\Query - WRITE UUID ............................................................................26
12.13 Settings\Query
slave module is valid)........................................................................................................27
12.14
12.15 Settings\Query - Broadcast time interval(only slave module is valid)……............27
12.16Settings\Query - Module transmit power(only slave module is valid)……............28
12.17 Software restart……………………………………………………………….…..28
12.18 Restore default settings………………………………………………………..…28
12.19 Query - Master Mode(only master module is valid)..............................................28
12.20
12.21
12.22 valid)
12.23
12.24
12.25
12.26
12.27 Clear connection memory(only master module is valid)…………………………30
Precautions
Set/Query-Notify the host computer connection status (only slave mode is valid)
Notification connection with address code(only
Settings\Query - SERVICE UUID Settings\Query - NOTIFY UUID\ WRITE UUID
Settings\Query - Low Power Mode(only slave module is valid)
Search for Bluetooth devices (only master module is valid)
Print search to device list(only master module is valid)
Settings\Query—Automatically search for Bluetooth devices (master module is
...............................................................................................................................29
Connect a Bluetooth device (only master module is valid) Settings\Query—Automatically connect to Bluetooth device………….. Connect to the remote specified address Bluetooth (only master mode is valid).
Bind the specified address to Bluetooth
.....................................................................................21
slave mode is valid).25
.........................................................................26
................................................26
Wait for the channel to be established after connecting(only
-
..........................27
................................28
.........................................29
………………...........29
……....29
(only master module is valid)
….……. 30
25
30
13、Contact Us.............................................................................................................30
DX-BT19-S 蓝牙技术手册
Bluetooth Protocol
Bluetooth Specification V4.0 BLE
Working Frequency
2.4GHz ISM band
Communication Interface
UART
Power Supply
3.3V
Communication distance
30-40M (Open and unobstructed environment)
Physical Dimension
18.5(L)mm x 13.5(W)mm x 2(H) mm
Bluetooth Authentication
FCC CE ROHS REACH
Bluetooth Name
BT19
Serial Port Parameters
9600、8 data bits、1 stop bit、No check、No flow control
Service UUID
FFE0
Notify\Write UUID
FFE1
Write UUID
FFE2
Storage temperature
MIN:-55℃ - MAX:+125℃
Work temperature
MIN:-20℃ - MAX:+70℃
Customized requirements
If you have other special function requirements, you
can contact us to customize the module.
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
This module supports UART interface and supports Bluetooth serial port transparent transmission. It has the advantages of low cost, small size, low power consumption, high sensitivity of sending and receiving, etc. It can realize its powerful functions with only a few peripheral components simple
1．Overview
parameters as needed, flexible use.
operation, high cost performance and technology leading edge.
2．
Module default parameters
：
DX-BT19-S 蓝牙技术手册
Mode
Status
Current
Unit
Low power mode
Discoverable
400-700
uA
Connected
8.5
mA
Normal working mode
Discoverable
8.5
mA
Connected
8.5
mA
Rating
Value
Unit
BLE Transmit power
0
dBm
BLE Sensitivity
-93
dBm
Android ->BT19 -> UART
UART ->BT19 -> Android
Baud rate
115200
Baud rate
115200
Connection interval (ms)
20
Connection interval (ms)
20
Serial packet size (bytes)
200
Serial packet size (bytes)
200
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.
Successful application of BT19 module:
※ Bluetooth wireless data transmission；
※ Mobile phones, computer peripherals；
※ Handheld POS device；
※ Medical equipment wireless data transmission；
※ Smart Home Control；
※ Automotive Inspection OBD Equipment； ※ Bluetooth printer; ※ Bluetooth remote control toy; ※ Anti-lost device, LED light control;
4．Power consumption parameters:
5．Radio frequency characteristics:
6．Transparent transmission parameters
Data throughput:
DX-BT19-S 蓝牙技术手册
Pin number
Pin name
Pin description
1
UART_RTS
NC
Transmission interval (ms)
70
Transmission interval (ms)
70
Throughput (bytes/s)
2500
Throughput (bytes/s)
2800
Characteristic Write
Write without
Response
Characteristic Notify
Notify
iPhone 6 ->BT19 -> UART
UART ->BT19 -> iPhone 6
Baud rate
115200
Baud rate
115200
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)
2000
Throughput (bytes/s)
1800
Characteristic Write
Write without
Response
Characteristic Notify
Notify
Note: This table parameter is for reference only and does not represent the maximum data throughput that the module can support.
7. Module pin description and minimum circuit diagram:
8．Pin function description:
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,
Mode
LED Display
Module Status
Slave module
Uniformly slow flashing (800ms-on, 800ms-off)
standby mode
Long bright
Connection Status
Main module
Evenly flashing (300ms-on,300ms-off)
Search and connect
Long bright
Connection Status
Pin state
Module status
Output low level
standby mode
Output high level
Connection Status
Pin state
Module status
No action
Connection Status
9．Detailed description of function pins:
1. P15 pin (P1_2): LED indicator pin
·Used to indicate the status of the Bluetooth module. Correspondence between the LED flashing mode and the Bluetooth module status is shown in the following table:
2.
P13 pin (P1_1): connection status indicator
3.
P16 pin (P1_3): connection interrupt pin (module is in the connected state)
Loading...
+ 11 hidden pages
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use