Shenzhen Hi Link Electronic HLK-B10 Serial port Bluetooth Transmission Module User Manual

Shenzhen Hi Link Electronic HLK-B10 Serial port Bluetooth Transmission

Module

Brief Introduction

HLK-B10 is a single-mode BLE5.0 Bluetooth transmission module developed by Hi- Link Electronics. It integrates Bluetooth radio frequency chip and a small number of peripheral devices, embedded in 32-bit MCU,500KB flash memory with low power consumption, 64KB SRAM and rich peripheral resources. Meet to Bluetooth 5.0 specification, it can be used as Bluetooth slave device and connected by various Bluetooth host devices. The module’s serial port Bluetooth two-way transmission function is very Simple to use. Users do not need to understand the complex Bluetooth protocol stack, just connect the customer’s equipment or MCU’s serial port to the module, and the module will automatically complete the two-way data transmission between the serial port and Bluetooth, which just like a bridge between the user’s MCU serial port and Bluetooth equipment, so that users can quickly and simply use the serial port equipment to realize Bluetooth wireless transmission function. Support AT command mode, the user can query or set the basic parameters of the module through serial port AT command, such as device name, serial port baud rate and so on. We develop and provide a wealth of testing tools and using documents, and provide testing APP Demo to facilitate users to quickly start and apply this module. Our company can also provide flexible and rich custom development services according to the specific needs of customers

Pin Definition

Pin

| ****

Symbol

| ****

IO type

| ****

Function

---|---|---|---

1

| ****

RST

| ****

AO

| Module reset input pin，Low level efficiency

2

| ****

P07

| ****

I/O

| ****

GPIO7

3| P31| I/O| ADC/CH1

4

| ****

P10

| ****

I/O

| ****

PWM0

5

| ****

P11

| ****

I/O

| Keystroke input pin，Low level efficiency

6

| ****

P12

| ****

I/O

| ****

PWM[2]

7

| ****

P13

| ****

I/O

| ****

PWM[3]

8

| ****

3.3V

| ****

P

| ****

Module power supply 3.3V

9

| ****

P32

| ****

ADC

| ****

Ch2

10

| ****

P34

| ****

ADC

| ****

Ch4

11

| ****

P30

| ****

ADC

| ****

Ch0

12

| ****

P33

| ****

ADC

| ****

Ch3

13

| ****

P14

| ****

I/O

| ****

PWM[4]

14

| ****

P15

| ****

I/O

| ****

PWM[5]

Pin

| ****

Symbol

| ****

IO type

| ****

Function

---|---|---|---
15| GND| P| Power reference place

16

| ****

P02

| ****

I/O

| ****

State indicate LED output,Low level efficiency

17

| ****

P03

| ****

I/O

| ****

GPIO3

18

| ****

P04

| ****

I/O

| ****

GPIO4

19

| ****

P05

| ****

I/O

| ****

GPIO5

20

| ****

P06

| ****

I/O

| ****

GPIO6

21

| ****

RXD

| ****

I/O

| ****

UART input

22

| ****

TXD

| ****

I/O

| ****

UART output

Typical Application Circuit

Basic Functional Description

Two working states of the module

HLK-B10 module has two working states: transmission mode and AT command mode. In AT command mode, the command can be sent to the module through serial port to configure the parameters of the module and query the information of the module. In transmission mode, the module will transmit the serial port data and Bluetooth connection data in two-way. Starting module, the default is the transmission mode; there is no affect to the Bluetooth
connection state when exit transmission mode into AT mode. The serial port- Bluetooth data transmission is paused, and the data received by the serial port is processed by the current AT instruction. After the transmission is restored, the data transmission will continue.

Function Keys and Status Indicators

State output pin
The 16th foot of the module P02 is output pin for state LED，When this pin is connected to the LED cathode, the current working status of the module can be displayed through the light and off status of the LED. The LED display status is defined as follows

Function key input pin
Module 5 pin P 11 for function key input pin. that is ES/Del pin, a key can be connected between this pin and GND,The functions corresponding to different operation of the key are as follows： Short press（50ms～1s）the module will exit transmission mode. ，switch to AT command`

Switching Between Transmission and AT Command Mode

From transmission mode to AT command mode
There are two ways to switch the transmission to AT command mode: key mode：
Pull down the fifth pin 50ms～1s，The module immediately enters the AT command mode.
In transmission mode,the serial port receives special format data to automatically exit the transmission：
When you are about to exit transmission mode, the serial port pauses the input 200ms to ensure that the data in the serial port is sent empty, and then enter “+++”,After receiving the reply “a”, enter “a” and pause 200ms to ensure that there is no subsequent data input to exit the transmission mode. Do not have any input before and after “+++”and “a”, including”\ r\ n “to avoid fault operation.

From AT instruction mode to transmission mode

Send command：AT+TS=1
The conversion logic for transmission mode and AT command mode is as following：

AT command

Format the class command：AT+ =<…>
X represents the name of the parameter to set，…represent Parameter Value

AT+ =<…>

OK

| AT+ =<…>

ERROR

example：

• send out：AT+DEVNAME=HLK-B10
• received：AT+DEVNAME=HLK-B10

Query class command format：AT+ =?

x represents parameter name of the query，… represent parameter value。 Returned value ：

• AT+=?
• <…>
• example：
• send out：AT+DEVNAME=?
• received：AT+DEVNAME=?
• HLK-B10

AT Command list and functional description

received：V1.01(190806)

AT+MAC| Query module MAC address| send out：AT+MAC=?

received：11:22:33:44:55:66

AT+TS| Restore to transmission mode| Send out：AT+TS=1

received：OK

---|---|---

AT+BAUDRATE

| Set or query module serial port baud rate Default baud rate：115200| Send out：AT+BAUDRATE=115200

received：OK

Send out：AT+BAUDRATE=?

received：115200

AT+DEVNAME

| Set or query the (Bluetooth) name of the module

Default：HLK-B10_****

| Send out：AT+DEVNAME=test123 received：OK

Send out：AT+DEVNAME=? received：test123

AT+LINKS

|

Query module Bluetooth connection status

| Send out：AT+LINKS=?

//connecting，MAC with Bluetooth host after comma

received：1, 8B:09:3C:3C:B0:74

//Not connected on

received：0

AT+RECONN| Set to disconnect the module from the

current Bluetooth connection

| Send out：AT+RECONN=1

received：OK

AT+REBOOT| Restart module| Send out：AT+REBOOT=1

received：OK

AT+DEFAULT| Restore default settings| Send out：AT+DEFAULT=1

received：OK

Bluetooth Connection Method
As a Bluetooth 5.0 slave device, HLK-B10 module provides a fff0 service, and Bluetooth data transmission is mainly based on this service. Bluetooth host devices, such as mobile phone APP, connect Bluetooth of the module ,using fff0 service to transmit data between mobile phone and HLK-B10 module through Bluetooth. When the mobile phone is connected to the module Bluetooth and the mobile phone actively enables the notify attribute, the data sent by the module can be received. Our company has developed the mobile phone APP side test Demo, and provides the Demo source code to the user, which has the detailed Bluetooth connection and the data sending and sending example, the concrete implementation and the application please refer to the

Test Tools and Methods

Test board
Users can choose our special test board to quickly start testing and using the HLK-B10 module。 The test board is directly powered by USB, which is provided with a USB to serial port function. After the computer is connected through a USB cable, the serial port of the module can be connected through a USB to serial port, and the serial port of the module is not required to be additionally connected, so that the device is convenient to use. The appearance layout and function description of the test board are as follows

Transmission test method

HLK-B10 the transmission function logic of the module is as follows: When the mobile phone APP and the module establish the Bluetooth connection, the data sent in the mobile phone APP is forwarded to the serial port of the module as it is, and the data sent to the module serial port will be forwarded to the mobile phone APP as it is.

An example of data Transmission Test between Serial Port and Mobile phone APP

• Connect the module to the test board correctly and connect the module to the computer through USB cable;
• Open the corresponding serial port with the serial port debugging tool on the computer
• Turn on the transmission test on the mobile phone APP，Click the Bluetooth device name corresponding to the module to connect，If it does not appear, the drop-down interface can be rescan
• When the connection is successful, the module’s state LED becomes connected； At this time, the data can be sent to the module serial port in the serial port debugging tool on the computer, and the sending content will be received and displayed by the mobile phone APP as it is；
• Send data to the module from the penetration test APP on the mobile phone, and the sent content will be received by the module as it is and output to the module serial port. The received data can be seen in the serial port debugging tool on the computer, and the effect is shown in the following figure

Module serial port & Mobile phone end

Revised Record

• SHENZHEN HI-LINK ELECTRONIC CO.,LRD
• ADD ： 3F,Cai Yue Building West, No.24 Liu Xian Avenue, Long Hua district,
• Shenzhen 518131
• TEL：0755-23152658/83575155;
• WEB： www.hlktech.com

RF exposure considerations
This module certified that complies with RF exposure requirement under 5mm RF distance.

Label and compliance information

FCC ID label on the final system must be labeled with “Contains FCC ID: 2AD56HLK-B10” or “Contains transmitter module FCC ID: 2AD56HLK-B10”.

Information on test modes and additional testing requirements

Contact Shenzhen HaiLingKe Electronic co., Ltd will provide a stand-alone modular transmitter test mode. Additional testing and certification may be necessary when multiple modules are used in a host.

Additional testing, Part 15 Subpart B disclaimer

To ensure compliance with all non-transmitter functions the host manufacturer is responsible for ensuring compliance with the module(s) installed and fully operational. For example, if a host was previously authorized as an unintentional radiator under the Supplier’s Declaration of Conformity procedure without atransmitter certified module and a module is added, the host manufacturer is responsible for ensuring that the after the module is installed and operational the host continues to be compliant with the Part 15B unintentional radiator requirements. Since this may depend on the details of how the module is integrated with the host, ShenZhen HaiLingKe Electronic co.,Ltd shall provide guidance to the host manufacturer for compliance with the Part 15B requirements.

FCC Warning

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

•  This device may not cause harmful interference, and
•  this device must accept any interference received, including interference that may cause undesired operation.

NOTE 1: This product 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 product 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 product 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.

FCC Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End users must follow the specific operating instructions for satisfying RF exposure compliance.

• Note 1: This module certified that complies with RF exposure requirement under 5mm RF distance. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
• Note 2: Any modifications made to the module will void the Grant of Certification, this module is limited to OEM installation only and must not be sold to end-users, end-user has no manual instructions to remove or install the device, only software or operating procedure shall be placed in the end-user operating manual of final products.
• Note 3: The module may be operated only with the antenna with which it is authorized. Any antenna that is of the same type and of equal or less directional gain as an antenna that is authorized with the intentional radiator may be marketed with, and used with, that intentional radiator.

References

• Domainverkauf
• 串口WIFI_Hi-Link_串口WIFI模块_WIFI智能家居_WIFI方案开发_WIFI无线LED方案_无线路由模块_WIFI开关方案_WIFI插座_智能家居网关方案_深圳市海凌科电子

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