Hobbywing Technology HW6187 User manual

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SDM16HA(LE5.1)HY-1.0
BLE transparent transmission module
Specifications and instructions
Hobbywing Technology Co., LTD
Model: HW6187
CMIIT ID: 2021DP16214
Version: V1. 2
Date: 2021-05-20

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Contents
FCC Warning .............................................................................................3
1 Features....................................................................................................4
1.1 Functional Overview............................................................................................... 4
2 Product hardware layout and interface description.................................4
2.1 Module pin layout........................................................................................................4
2.2 BLE module pin description.........................................................................................4
3 Hardware Design.....................................................................................5
3.1 Module simple application connection circuit diagram................................................. 5
4 Module Dimensions ................................................................................5
4.1 The module size........................................................................................................... 5
5 Module Transparent Transmission Protocol ...........................................6
5.1 AT command configuration .........................................................................................6
5.2 AT command overview................................................................................................ 6
5.2.1 AT+NAME....................................................................................................... 7
5.2.2 AT+MODE....................................................................................................... 7
5.2.3 AT+SLEEP....................................................................................................... 8
5.2.4 AT+MAC.......................................................................................................... 8
5.2.5 AT+CIVER....................................................................................................... 8
5.2.6 AT+ UART.......................................................................................................8
5.2.7 AT+Z................................................................................................................9
5.2.8 AT＋+++.......................................................................................................... 9
5.2.9 AT+AUTO+++................................................................................................. 9
5.3.0 AT+FLASH...................................................................................................... 9
5.3.1 AT+ LINK...................................................................................................... 10
5.3.2 AT+ SCAN..................................................................................................... 10
5.3.3 AT+ CONN..................................................................................................... 10
5.3.4 AT+ CONNADD ............................................................................................ 10
5.3.5 AT+ DISCONN .............................................................................................. 11
5.3.6 AT+ UUID...................................................................................................... 11
5.3.7 AT+POWER................................................................................................... 11
5.3.8 AT+ADVINT.................................................................................................. 12

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FCC Warning
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.
NOTE 1: This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates uses and can radiate
radio frequency energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help.
NOTE 2: Any changes or modifications to this unit not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.

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1 Features
This module is a BLE transparent transmission module designed based on the Bluetooth Low Energy
standard published by Bluetooth SIG. This module is controlled through the serial port and also supports
wireless control through the host side. Users do not need to pay attention to complex Bluetooth protocol
application software, and can develop standard low-power Bluetooth products in a short period of time.
After the connection is established through serial control, two-way data transmission can be realized
between the BLE host and the slave.
1.1 Functional Overview
1. Support fully transparent transmission
2. Support serial port command to modify and get module settings
3. Power consumption and performance can be independently weighed and selected
4. The fastest one-way communication rate can exceed 3kBytes/s
5. Support serial large data packets of up to 200 bytes, and the module can buffer and sub-package
independently
6. Serial port configuration {or read) parameters such as baud rate, device name, broadcast interval, etc.
7. Abundant 1/0 control and status indication functions, simpler and real-time control module and obtain
module status
8. Simpler software and hardware design requirements
2 Product hardware layout and interface description
2.1 Module pin layout
Module pin layout as shown in Figure 2-1
Figure 2-1
2.2 BLE module pin description

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BLE module pin description in Table 2-1
Number
Pin
Features
Direction
Instruction
1
ANT
external antenna
／
Connect external antenna
2
NC
NC
／
NULL
3
NC
NC
／
NULL
4
TM
NC
／
NULL
5
P25
NC
／
NULL
6
P31
NC
／
NULL
7
P33
NC
／
NULL
8
P32
BTX
I/O
UART Tx
9
P34
BRX
I/O
UART Rx
10
P00
RSTP
Connect GND to Reset
11
P10
NC
／
NULL
12
P09
NC
／
NULL
13
P14
NC
／
NULL
14
P03
NC
／
NULL
15
P02
NC
／
NULL
16
P01
NC
／
NULL
17
GND
GND
／
Connect GND
18
VCC
VCC
／
Vbat 3.0-4.2v
Table 2-1
3 Hardware Design
3.1 Module simple application connection circuit diagram
Module simple application connection circuit diagram as shown in Figure 3-1
Figure 3-1
4 Module Dimensions
4.1 The module size
The module size is shown in Figure 4-1

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Figure 4-1
5 Module Transparent Transmission Protocol
5.1 AT command configuration
<AT+> command refers to the command set passed by user through UART and module input
command in command mode. The usage format of AT+ command will be explained in detail
later. After power-on and startup, you can set the default UART of the module through UART.
The port parameters are z baud rate 115200, no parity, 8 data bits, and 1 stop bit.
5.2 AT command overview
<AT+ >commands can be input directly through serial debugging programs such as CRT, AT+
commands use command lines based on ASCII codes, and the format of the commands is as follows.
1. Format description
< >: Indicates the part that must be included
[ ]: Optional part
2.Command Message
AT+<CMD＞[p][para-1,para-2,para-3,para-4］＜CR><LF>
AT+: Command message prefix:
[op]: Command operator, specify parameter setting or query:
“=": Indicates parameter setting
“?”: means query
[para-n]: Input for parameter setting, such as query does not need:
<CR>: end character, carriage return, ASCII code OXOD;
<LF>: end character, line feed, ASCII code OXOA;
3. Response message
<CR><LF>+<RSP>[op] [para-1,para-2,para-3,para-4 ]<CR><LF>
+: Response message prefix:
RSP: Response string, including 2
“OK”: means success
“ERR”: Indicates failure

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[para-n]: Return parameters when querying or error code when error occurs
<CR>: ASCII code 0x0D;
<LF>: ASCII code 0x0A;
4. Instructions for instructions
General instructions
[NAME]resistance Query/set the name of the module
[MODE] query/set the mode of the module MAC query the MAC address of the module
[CIVER] query the software version number
[UART] setting/query module serial port parameters
[Z] control module restart
[+++] Enter transparent transmission mode
[AUTO+++] The query/setting module automatically enters the transparent transmission mode
after being connected
[FLASH] stores the default configuration parameters to the flash, the specific parameters are
explained later.
[SLEEP] sets the chip to start/stop sleep.
Connection instruction
[LINK] Query the connection status of the module
[SCAN] Search the surrounding slaves
[DISCONN] Set to disconnect the current connection
[CONN] Actively connect to the peer device scanned by [SCAN]
[CONNADD] Set the default peer MAC address for active connection Features z
[UUID] Set/Query UUID of the module
[POWER] Query/set the transmit power of the radio frequency
[ADVINT] query/set broadcast interval
5.2.1 AT+NAME
Function:Query/set the name of the module
＊Query the current parameter value
AT+ NAME?{CR}{LF}
Response
{CR}{LF}+NAM E:na me{CR}{LF}OK{CR}{LF}
＊Setting
AT+NAME=name {CR}{LF}
Response
{CR}{LF}+NAM E:name{CR}{LF}OK{CR}{LF}
＊Parameter
name: name of the module {limit length 1" 15 bytes} setting exampleg
For example, if you want to set the module name to USR-BLElOO, you need to set it as follows
AT+NAME=USR-BLElOO {CR}{LF},the {CR}{LF} and carriage return in the above formula.
5.2.2 AT+MODE
Function:Query/set the working mode of the module
＊Query the current parameter value z
AT+ MODE?{CR}{LF}
Response
{CR}{LF}+MODE:mode{CR}{LF}OK{CR}{LF}

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＊Setting
AT+MODE=mode{CR}{LF}
Response
{CR}{LF}+MODE:mode{CR}{LF}OK{CR}{LF}
＊Parameter
mode: the working mode of the module
I: wall idle mode, query display I, set the parameter to l (uppercase)
S: Slave mode, query display s, no need to set
M: In each mode of the main setting, the query displays M, and the parameter is set to M
(uppercase)
B: Broadcast mode, query display B, set the parameter to B (uppercase) C: link mode in
progress, query display c, no need to set X: abnormal mode, query display x, cannot be set
5.2.3 AT+SLEEP
Function:Start/stop the sleep function of the module, using AT+FLASH will record the current
Sleep,Enable the setting, the last sleep setting will be automatically enabled when the power is
turned on next time.
＊Setting
AT+SLEEP=set{ CR}{LF}
Response
{CR}{LF}+SLEEP:set{CR}{LF}OK{CR}{LF}
＊Parameter
set: module sleep start or stop
S: Set the module to enter sleep E: Set the module to stop sleep
5.2.4 AT+MAC
Function:Query the MAC address of the module. Format z
* Query the current parameter value 2
AT+MAC?{CR}{LF}
Response
{CR}{LF}+MAC:mac{CR}{LF}OK{CR} {LF}
＊Setting
AT+ MAC "nac{CR}{LF}
Response
{CR}{LF}+MAC:mac{CR}{LF}OK{CR} {LF}
＊Parameter
mac: MAC address of the device, such as FFFFFFFFFFFF
5.2.5 AT+CIVER
Function: Query software version number
＊Query the current version value 2
AT+CIVER? {CR}{LF}
Response
{CR}{LF}+VER: Version number {CR}{LF} OK{CR}{LF}
5.2.6 AT+ UART
Function:Set/query module serial port parameters
＊Query the current parameter value

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AT+UART?{CR}{LF}
Response
{CR}{LF}+UART: baudrate ,databit,p cylinder i,stop{CR}{LF}OK{CR}{LF}
＊Setting
AT+ UART = baudrate ,databit,p cylinder i,stop {CR}{LF}
Response
{CR}{LF}+UART: baudrate ,databit,p cylinder i,stop{CR}{LF}OK{CR}{LF}
＊Parameter
baudrate: The serial port baud rate is any value from 2400 to 115200, the factory default is
115200 databit: the data bit is 5, 7,8, and the factory default is 8.
pari: check digit, factory default no check
0: No parity
1: Odd parity
2: Even parity
stop: stop bit, factory default 1 stop bit
1: 1bit stop bit
5.2.7 AT+Z
Function:Control module restart
＊Setting
AT+Z{CR}{LF}
Response
{CR}{LF}+Z{CR}{LF}OK{CR}{LF}
5.2.8 AT＋+++
Function: Control module enters transparent transmission mode
＊Setting
AT++++{CR} {LF}
Response
{CR}{LF}十←＋{CR}{LF}OK{CR}{LF}
5.2.9 AT+AUTO+++
Function:Query/set whether the module automatically enters the transparent transmission mode
after being connected.
* Query the current parameter value 2
AT+AUTO+++?{CR} {LF}
Response
{CR}{LF}+AUTO ten 忡set{CR}{LF}OK{CR}{LF}
＊Setting
AT+A stare at O＋忡 set{CR}{LF}
Response
{CR}{LF}+AUTO material→: set {CR}{LF}OK{CR}{LF}
＊Parameter
set: Whether to automatically enter the transparent transmission after the module is linked
Y: Automatically enter transparent transmission
N: Do not enter transparent transmission automatically
5.3.0 AT+FLASH

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Function:The control module stores UART, MAC (own address and the peer address of the
default link), NAM E, broadcast interval, whether to automatically enter the transparent
transmission, whether to automatically enable the sleep function, and transmit power information
to FLASH.
＊Setting
AT+FLASH{CR} {LF}
Response
{CR}{LF}+FLASH{CR}{LF}OK{CR} {LF}
5.3.1 AT+ LINK
Function:Query module connection status
＊Query the current parameter value z
AT+LINK? {CR}{LF}
Response
{CR}{LF}PeerAddr:MAC{CR} {LF}Rssi:RssidBm{CR}{LF}+LINK:syang"s
{CR}{LF}OK{CR}{LF}
＊Parameter
MAC: The address of the connected device, if there is no connection, it will not respond to this
item
Rssi: The signal strength of the connected device, if there is no connection, it will not respond to
this item
status: module connection status OnLi Wei E: connection is successful OftLine: module is not
connected
5.3.2 AT+ SCAN
Function: Search surrounding slaves
Query the current parameter value z
AT+SCAN {CR}{LF}
Response
{CR}{LF}+SCAN:ON{CR}{LF}OK{CR}{LF}{LF} {LF}No: num
Addr:mac
Rssi:sizedBm{LF}{LF}{CR}{LF}Scan response: {CR}{LF} data{CR}{LF}
Thing parameter z
num: searched the index number of the slave device (up to 20 devices around it are displayed)
mac: The MAC address of the slave device is found
size: The signal strength of the searched slave device
data: The scan response data packet of each slave device is searched, if not, it will display NONE
5.3.3 AT+ CONN
Function: Quickly establish a connection by searching to the index number’
＊Set the current parameter value
AT+CONN『ium{CR}{LF}
Response
{CR}{LF}+CONN:num{CR}{LF}OK{CR}{LF}
Take parameter z
num: index number after searching
5.3.4 AT+ CONNADD
Function:Set/query the MAC address of the default connection module when the device is

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powered on. Format z
’Query the current parameter value z
AT+CONNADD? {CR}{LF}
Response
{CR}{LF}+CONNADD:mac{CR}{LF}OK{CR}{LF}
＊Setting
AT+CONNADD 『nac{CR}{LF}
Response
{CR}{LF}+CO 刚ADD:mac{CR} {LF}OK{CR}{LF}
＊Parameters
mac: The default connection MAC address after power-on
5.3.5 AT+ DISCONN
Function: Set to disconnect the current connection
＊Setting
AT+DISCONN {CR}{LF}
Response
{CR}{LF}+DISCONN:OK{CR}{LF}OK{CR} {LF}
5.3.6 AT+ UUID
Function:Set/inquire each serial port service UUIDQuery the current parameter value
AT+ UUID? {CR}{LF}
Response
{CR}{LF}+bleUart_Server 二_l]uid:
{CR}{LF}DATA:UUID{CR} {LF}{CR}{LF}+bleU cylinder t_Server_Tx_Uuid:
{CR}{LF}DATA:UUID{CR} {LF}{CR}{LF}+bleUart_Server_Rx_Uuid:
{CR}{LF}DATA:UUID{CR} {LF}OK{CR}{LF}
＊Setting
AT+ UUID =NUM+UUID{CR}{LF}
Response
{CR}{LF}+bleUart_Server_Uuid:{CR} {LF}DATA:UUID{CR} {LF}{CR}{
LF}successful{CR}{LF}or
{CR}{LF}+bleUart_Server_Tx_Uuid:{CR} {LF}DATA:UUlD{CR} {LF}{C R}{LF}succ
sful{CR}{LF}or
{CR}{LF}+bleUart_Server_Rx_Uuid:{CR} {LF}DATA:UUlD{CR} {LF}{C R}{LF}success
such as {CR}{LF}
＊Parameter
NUM: used to differentiate services
* AA: bleUart Server Uuid: main service UUlD
* BB: bleUart_Server_Tx_Uuid: serial port read service, a Notify service
* CC: bleUart Server Rx Uuid: serial port write service, one WriteWithoutResponse service
5.3.7 AT+POWER
Function:Query/set the RF power of the module
* Query the current parameter value 2
AT+ POWER?{CR}{LF}
Response
{CR}{LF}+POWER:set{CR} {LF}OK{CR}{LF}
＊Setting
AT+POWER=set{CR} {LF}
Response
{CR}{LF}+POWER:set{CR} {LF}OK{CR}{LF}

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＊Parameter
set: RF power of the module
0: Sdb
1: 2.Sdb
2, odb
3: -Sdb
4: -lOdb
5: -17db
5.3.8 AT+ADVINT
Function: query/set broadcast interval
* Query the current parameter value
AT+ ADVINT?{CR}{LF}
Response
{CR}{LF}+ADV T:set{CR}{LF}OK{CR} {LF}