Lierda Science and Technology Group LSD1BTNBLE0000 The KW31 BLE Module User Manual

Lierda Science & Technology Group Co.,Ltd The KW31 BLE Module

User Manual

LIERDA Science & Technology GROUP Co., LTD.Product SpecificationProduct Name: The KW31 BLE moduleProduct Model: LSD1BT-NBLE0000Version: V1.5
Table of ContentsChapter I: Functional Features ........................................................................................................................... 4 Chapter III: Hardware Layout and Interface Specification ................................................................................ 6 Chapter IV: Application Specification ............................................................................................................... 8 4.1 Module application circuit ................................................................................................................... 8 4.2 Precautions on module usage ............................................................................................................... 9 Chapter V: Functional Specification ................................................................................................................ 10 5.1 Networking function .......................................................................................................................... 10 5.2 Serial port framing mechanism .......................................................................................................... 10 5.3 Transparent transmission mode .......................................................................................................... 11 5.4 Command mode ................................................................................................................................. 11 5.5 Echo mode ......................................................................................................................................... 11 5.6 Serial port upgrade mode ................................................................................................................... 11 5.7 Low power mode ............................................................................................................................... 11 5.9 Service specification .......................................................................................................................... 13 5.10 Serial frame structure ....................................................................................................................... 13 5.11 Serial command overview ................................................................................................................ 14 Chapter VI Work Instruction of Reflow Soldering .......................................................................................... 17 Notes to Users: ................................................................................................................................................. 18
Document Revision Record Product Name The KW31 BLE ModuleProduct Model LSD1BT-NBLE0000 Prepared by Qiu Mangang Date of Preparation May 14, 2017 No. Revision log Revised by Checked by Document Version Revision Date 1Initial versionQiu Mangang V0.1 May 14, 20172Hardware upgrade change leads to I0 portQiu Mangang V0.2 Jun. 13, 20173Revise user modelQiu Mangang V0.3 Nov.6, 2017 4Update dimension drawing; update some parameters; update documentation error; release officiallyQiu Mangang V1.4 Apr. 27, 20185Revise module state output I0 port Huang Lutong V1.5 Jun.13,2018
Chapter I: Functional Features LSD1BT-NBLE0000 (The KW31 BLE Module) is a highly integrated low-power Bluetooth module based on NXP Kinetis KW31Z Soc chip development. Built-in ceramic antenna provides a complete RF solution without the need for any additional wireless investment to DFFHOHUDWHSURGXFWGHYHORSPHQW$UP &RUWH[-M0+ 32-bit based processor supports Bluetooth 4.2 to provide efficient connection. Built-in DC-DC conversion supports 1.8-4.2V wide voltage input to improve power efficiency. 512K Flash 128K RAM supports a variety of applications for customers. The module can be widely used in short-range wireless communication fields in various occasions to realize full transparent transmission. Users can configure various UART data formats according to actual applications and have the characteristics of small size, low power dissipation, long transmission distance, strong anti-interference ability, etc., convenient for customers to choose; The KW31 BLE Module can be widely used in the following occasions: Ɣ 6PDUWWR\VƔ +HDOWKWHVWLQJƔSmart family;ƔSafety and security.
Chapter II: Specification ParametersTable 2 LSD1BT-NBLE0000 module parametersParameters Performance RemarksOperating voltage1.8V to 4.2V2.1V required to startupOperating temperature -40 ̚85 ćOperating frequency2402~ 2480MHzPower dissipationTransmitting stateP$#9Typical value: 10.6mA@0dBm CWReceiving stateP$#9Typical value: 11.5mA@MCU RUN Sleep stateX$#9VLPS at Buck mode(3.3 V),Transmitting power2--3dBm Typical value: 2.5dBm @3.3V CWReceiving sensitivity Better than -93 dBmTypical value: -90dBmChannel 40Channel spacing 2MModulation systemGFSK @ 1MbpsCommunicationProtocol BLEReliabletransmission distance>12m@0dBOpen visual environment, the actual distance is affected by factors e.g. surrounding environment, air humidity, etc.Interface typeStamp hole patch typeShield YesDimensions(length ×width ×thickness)9mm×11.5mm×2.7mm The module comes with ceramic antennaAntenna typeMultilayer Chip AntennaAntenna gain 0.5dBi
Antenna size (L*W) 3.2*1.6mm Remarks: The actual distance is affected by various factors, e.g. ambient temperature, humidity, bottom plate, casing, mobile phone, etc. The data is only used for reference and not for guarantee. Chapter III: Hardware Layout and Interface Specification The definition of LSD1BT-NBLE0000 module pin is as shown in figure 1: Figure 3-1 Definition of LSD1BT-NBLE0000 module pin
Unit: mm Figure 3-2 Outline dimension drawing of LSD1BT-NBLE0000 module Module wrapping is as shown in figure 3-2; The description of pin function is as shown in figure 3-1. Table 3-1 Description of LSD1BT-NBLE0000 module pin function No. NameTypePinExplanation1GPIO0GPIOPTB0General GPIO, supporting low power wakeup 2GNDGNDNecessary groundconnectionPower ground3P_GPIO0 POW_CTRL (function I/O) PTC3Low-power control pin. Falling edge enters low power dissipation; rising edge exits low-power dissipation 4GPIO1BLE transmission state outputPTC4High level output during enabling transmission, low level output during disabling transmission5P_GPIO1 BT_CTRL (function I/O)PTC18Bluetooth broadcast control I/O. Broadcast at low level, closedown at high level;
6P_GPIO2 BLE connection state outputPTB1Low level in connection state, high level in disconnection state7HCI_RXD DIPTC6UART_RX8HCI_TXD DOPTC7UART_TX9GPIO2GPIOPTB2General I/O10RST_NRESETRST(Active Low) Pin reset, low level reset, high level by default11 SWDIOSWDPTA0SWD program download interface12SWDCK/ P_GPIO3 SWD/module LED statePTA1SWD program download interface;Flashing 2 times per second in connection state, flashing once every 3S in disconnection state.13GNDGNDNecessary groundconnectionPower ground14VbatPOWER1.8V²4.2V Power 3.3V15GPIO3GPIOPTB3General GPIO16P_GPIO4 PIN_MODE (function I/O)PTC17Command mode selection I/OLow level CMD, high level DTUNote: general GPIO is configured by default as floating input. More pin function descriptions in KW31 latest data book; http://cache.nxp.com/assets/documents/data/en/data-sheets/MKW41Z512.pdfChapter IV: Application Specification 4.1 Module application circuit Refer to the following circuit for module minimum system
Figure 4-1 Module recommended minimum systemFigure 4-2 Connection between host and module pinThe pins that need to be connected to the host when the module works normally are as shown in figure 4-2. At least four IO ports are required to control the module. PWR_CTRL refers to low lower control pin; the falling edge enters power dissipation, while the rising edge exits lower power dissipation. PIN_MODE refers to command and transparent transmission mode switch; pin low level is the command mode, while the high level is the transparent transmission mode. BT_CTRL refers to the broadcast control pin; it enters broadcast state at low level and the broadcast stops at high level.4.2 Precautions on module usageIn order to ensure that RE performance of module is the most effective in applications, users shall
follow the following principles in use:1. It is recommended to use DC stabilized power supply for the module. Power supply ripplecoefficient shall be as small as possible. The module shall be grounded reliably. Please pay attention to the connection between positive and negative poles of the power supply. Reverse connection may cause permanent damage to the module; 2. It is recommended to place the module at the open space of bottom plate edge and the antenna shallface outwards; 3. PCB board (double-sided board and multi-layer board) below the antenna in the module needs to becleaned and cannot be coated with copper, i.e. there shall be no grounding or signal trace for all layout layers below the antenna; 4. It is best not to have metal devices near the antenna, otherwise the communication distance ofmodules will be shortened to varying degrees in different environments.Figure 4-2 Module PCB layoutChapter V: Functional Specification 5.1 Networking functionThe transparent transmission module is temporarily only used as a slave device to connect to piconet with master device. The existence of these interfaces not only greatly expand the connection mode of the module but also can enable users to dock with the modules and realize the network transmission of data;5.2 Serial port framing mechanismURAT has a framing mechanism. The continuous transmission is one frame, but the number of bytes per frame must be less than 1500 bytes. The framing is related to the low power mode. In low power mode,
transparent transmission module will ignore all the data received. The module must be woken up before data can be set and received. 5.3 Transparent operating mode Serial port transparent transmission working mode is supported to realize data transfer from wired serial port to Bluetooth wireless transmission or achieve transparent transmission to serial port through Bluetooth wireless transmission. Transparent transmission working mode enables products of customers to achieve the fastest and simplest wireless communication. UART->APP˖When uart sends data, the length of a packet to be sent needs to be determined by the transmission interval and the connection interval of modules. The data of one frame cannot exceed 1500 bytes. APP->UART˖APP needs to be cached. Ble can only send 1500 bytes in one frame (the frame will be dropped if there are more than 1500 bytes). 5.4 Command mode Command configuration mode is supported to configure and read the device information of module as well as the parameters configured by users. See 5-11 serial port command overview for details. 5.5 Echo mode The module enters echo mode when the module is in unconnected state and PIN_MODE is high. At this time, the data can be received at HCI_RXD terminal through HCI_TXD printing module to facilitate debugging by users. 5.6 Serial port upgrade mode The module supports the serial port online upgrading function. When the module is reset, 16-byte IRUPDWFRPPDQG³ymodem´LVVHQWWRWKHPRGXOHDWDQ-bit length of 115200 baud rate and one-stop bit no parity through thH VHULDO SRUW 7KH PRGXOH ZLOO UHWXUQ WR ³&´FKDUDFWHU DIWHU UHFHLYLQJ WKH FRPPDQGwhich indicates successful entry into the serial port upgrade mode and waiting to receive the upgrade program. It will be started according to the new program if the upgrade is successful, otherwise it will be started from the original program. 5.7 Low power mode The module enters low power mode when the module POW_CTRL pin is pulled low. At this time, the module will no longer broadcast or receive the data sent by Bluetooth and the host serial port. It will exit the low power mode when POW_CTRL pin is pulled high.
5.8 Module mode switchingTable 5-1 Switching of module modes Mode Entry Mode Exit ModeTransparent transmission mode POW_CTRL works properly for high modules. It enters transparent transmission mode after successful Bluetooth pairingModule disconnectionCommand modeIt enters command mode if PIN_MODE is lowPulling command pin highEcho modePull PIN_MODE high and the module is not connectedModule connection or pulling down command pinSerial port upgrading modeSee the IAP documentation for detailsAutomatically exiting after the upgrade is completedLow power modePull the PWR_CTRL pin low to enter low power modePulling the PWR_CTRL pin high to exit low power modeIn command mode, the users control BLE transparent transmission module through the serial port command, as shown in figure 5-1. The primary controller sends a command to BLE transparent transmission module. BLE transparent transmission module will send an acknowledge frame to the controller MCU after receiving the command and executing it to characterize the result of command execution.MCU BLEUART:CMDUART:ACKFigure 5-1 Main controller and BLE transparent transmission module command form In transparent transmission mode, MCU sends data to the module, and then the module transmits to the mobile phone through BLE protocol. The mobile phone sends data to the module through BLE protocol, and then the module sends to MCU through the serial port, as shown in figure 5-2.
MCU PHONEKW31UART:TXUART:RXBLE TXBLE RXFigure 5-2 Specification of model transparent transmission5.9 Service specificationService NameUUIDNotesservice_gatt 0x1801GATT serviceservice_gap 0x1800GAP serviceservice_device_info0x180AEquipment information serviceservice_battery0x180FBattery serviceservice_dtu0xE0, 0x1C, 0x4B, 0x5E, 0x1E, 0xEB, 0xA1, 0x5C, 0xEE, 0xF4, 0x5E, 0xBA, 0xE7, 0xFE, 0xFF, 0x01Universal transparenttransmission service5.10 Serial frame structureThe commands of transparent transmission module have a certain format, including five areas of ³KHDGHU´³FRPPDQG,'´³FRPPDQGLQIRUPDWLRQOHQJWK´DQG³FRPPDQGLQIRUPDWLRQ´The details are as follows:Input command format (hex) HeaderheaderCommand IDMessage lengthMessage Content01 FC XX XX;;«;;Output response format (hex) HeaderHeaderCommand IDMessage LengthMessage Content04 FC XX XX;;«;;Header: in order to ensure that the input command can be correctly parsed, all input command frames muVW VWDUW ZLWK SUHIL[³ )&´ $OO RXWSXW UHVSRQVH IUDPHV VWDUW ZLWK³)&´ZKLFKKHOSVWKHXVHUWRdistinguish command from data.Command ID: command ID is an identifier between different commands. Different commands have unique command ID, which are described in detail below.
Message length: message length refers to the number of bytes of message content, excluding prefix, command ID and message length itself.Information content: the information content of input command is some input parameters of the command execution, while the information content of output response is the result of command execution, which is described in details below.5.11 Serial command overviewTable 5-2 is detailed specification of output response frame.Table 5-2 Output response frame format specificationNo.Command IDSpecification101Correct command, without additional data, return 04 FC 01 002XXCorrect command, with additional data, return 04 FC xx (corresponding to command ID) xx(message length) xx...(message content)302Command error, return 04 FC 02 00The Bluetooth 4.2 protocol specifies that the pairing password is of 6 digits.Table 5-3 refers to the detailed description of input command frame.Table 5-3 Input command frame explanationPower-down SavingCommandIDCommand DescriptionDefaultCommand Format Return ValueYes01Set baud rate11520001 FC 01 04 XX XX XX XX (uint32, low endian) The baud rate unit is bps. The range is 230400~1200. It is transmitted in low byte rate,for example, for baud rate 115200, the hexadecimal is 0x0001C200, which shall be written as 00 C2 01 0004 FC 01 00 Correct setup04 FC 02 00 Setup error/02Query baud rate/01 FC 02 0004 FC 02 04 XX XX XX XX (uint32, low endian, the same as ID:01) 04 FC 02 00 false commandYes03Set connection 0x0028 10ms01 FC 03 02 XX XX (uint16, low endian) 04 FC 01 00 Correct setup 04 FC 02 00 Setup error
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GPIO0~GPIO3 output level./11Query I/O input and output state Yes12Read I/O state01 FC 14 02 XX (XX respectively indicate that corresponding I/O state is read) /80Restorefactory settings and restart to take effect /01 FC 80 0004 FC 01 00 Correct setup 04 FC 02 00 Setup error/81Reset module/01 FC 81 0004 FC 01 00 Correct setup04 FC 02 00 Setup error/F0Firmware version No. query/01 FC F0 0004 FC F0 02 XX (hardware version) YY(firmware version) 04 FC 02 00 Setup error
Notes to Users: 1. Welcome to use the products of LIERDA Science & Technology GROUP Co., LTD. Please read thenotes before using our products. If you have started using, it indicates that you have read and accepted the notes.2. LIERDA Science & Technology GROUP Co., LTD. reserves the final right to interpret and reviseall the materials provided.Prepared by: Microcontroller Business Division of LIERDA Science & Technology GROUP Co., LTD . April, 2018FCC Statement Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 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. FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment .This equipment should be installed and operated with minimum distance 20cm between the radiator& your body. FCC Label Instructions:The outside of final products that contains this module device must display a label referring to the enclosed module. This exterior label can use wording such as: “Contains Transmitter Module FCC ID: N8NLSD1BTNBLE0000”,or “Contains FCC ID: N8NLSD1BTNBLE0000 ”, Any similar wording that expresses the same meaning may be used.

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