Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. WLT8258 BLE module User manual V1.1 2019.03 www.wi-linktech.
Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. About Datasheet The specification of WLT8258 module provides an introduction of the basic functions of WLT8258 module, including the electrical specification, RF performance, pin size, and design of reference schematic diagram, etc. Readers can refer to this document to have a detailed understanding of the overall functional parameters of the module application, please log in http://www.wi-linktech.com/ or contact our company or customer service.
Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. directory 5. About Datasheet ................................................................................................................ 2 Revision History ............................................................................................................... 2 Summary ................................................................................................................................... 4 1.1 Functions ...................
Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. 1. Summary 1.1 Functions WLT8258 is a small, low-cost Bluetooth BLE standard pass-through module designed by Wi-linktech. Module supports BLE and BLE Mesh. Built-in 512kB FLASH supports dynamic stack and protocol Profile configuration. Product functionality can be configured by software, providing ultimate flexibility. It also supports hardware OTA upgrade and multi-boot switch, allowing convenient product function launch and upgrade.
Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. WLT8258 module only needs to connect VCC, GND, TX and RX to complete data transmission function. It also supports the use of the AT instruction to modify the default name and other related parameters (see the WLT8258 user manual for details). After the module configuration is completed, pass-through function can be tested with relevant mobile phone software.
Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. 1.2 Application fields Personal equipment: Wearable, mouse and keyboard, remote control toys; Retail logistics: Electronic shelf label, cold chain transport; Smart home: Lighting, sensor, intelligent lock, remote control, lawn mower, voice control, intelligent printer, lift table and chair; Industrial control: Security monitoring, special printers, medical equipment; 2019.03 www.wi-linktech.
Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. 2. Electrical specifications Maximum rated parameter Item The power supply Symbol Min Max Unit VDD 0.3 3.6 V Vin 0.3 VDD + 0.3 V Pin output voltage Vout 0 VDD V Storage Tstr - 65. 150 ºC Tsld - 260 ºC voltage Pin input voltage temperature Welding temperature Note: 1) The listed electrical characteristics are target specifications for reference only. Some data may be updated based on actual test results.
Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. RF performance parameter Item Sym. Min Typ. Max Unit Condition 1MHz Frequency Freq. range 2380 - 2500 MHz programmable frequency interval Data rate BLE/2.4G of Proprietary 1Mbps, ±250kHz deviation 3. The Bluetooth specification BLE 1Mbps RF_Rx performance (±250kHz deviation) Item Sym. Min Typ. Max The sensitivity 1 MBPS - - 96. - dBm - - 250.
Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. 4. Pin description 4.1 Pin assignment Figure 4-1 module pin diagram Note: figure 4-1 pin functions can be redefined by pin reuse 2019.03 www.wi-linktech.
Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. 4.2 Pin definition PIN # Pin name type describe 1 GND The POWER Ground 2 3 v3 The POWER 3.
Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. SPI PD < 7 > : SPI_CK PB < 6 > : SPI_DI PB < 7 > : SPI_DO PD < 2 > : SPI_CS I2C PC < 0 >: I2C_SDA PC < 1 >: I2C_SCK PC < 2 >: I2C_SDA PC < 3 >: I2C_SCK I2C can also be multiplexed by SPI interface, that is, I2C_SDA/I2C_SCK can be multiplexed by SPI_DI /SPI_CK respectively.
Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. As shown in figure 4-2, the sent data is written to the TX buffer, and the UART module uses the TX pin to extract the data from the TX buffer transferred to other devices, the data received by the RX pin is first sent to the RX buffer and then through the MCU or DMA Read. If the UART's RX buffer is full, the UART module sends a signal (configurable high or low) through the RTS pin to inform other devices that they should stop sending data.
Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. 5.1 Module dimension Figure 5-2 Top View (Seen from Top) Bottom View (Seen from Bottom) Table 5-1 module design size Module dimension Antenna position size The thickness of the PCB Length (X) 11.20±0.15 mm Width (Y) 16.00±0.15 mm Length (X) 11.20 mm Width (Y) 4.34 mm Height (H) 0.80±0.05 mm Height (H) 2.
Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. To maximize RF performance, the user motherboard layout should follow the following recommendations: 1) Antenna clearance area: the user mainboard located directly below the module antenna area shall not have any copper foil wiring (including power supply, ground and signal layer). 2) Module position: the module should ideally be placed in the corner of the user's main board, and the PCB antenna is located at the far end of the main board.
Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. 6.
Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. 7. Software applications WLT8258 is a data transfer module that supports transparent transfer mode and command transfer mode. AT+ instruction set means that users input commands through serial ports to configure parameters. For details of specific commands, please refer to the application documents of relevant WLT8258 module software. WLT8258 supports customer customization, please contact our company for details. 8.
Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. RF exposure considerations 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. If the device built into a host as a portable usage， the additional RF exposure evaluation may be required as specified by 2.1093. Antennas This module using PCB antennas with maximum gain is 3 dBi .
Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. investigation is especially important when integrating multiple modular transmitters where the certification is based on testing each of them in a stand-alone configuration. It is important to note that host product manufacturers should not assume that because the modular transmitter is certified that they do not have any responsibility for final product compliance.
Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. Frequency spectrum to be investigated For host products with certified modular transmitter， the frequency range of investigation of the composite system is specified by rule in Sections 15.33(a)(1) through (a)(3)， or the range applicable to the digital device， as shown in Section 15.33(b)(1)， whichever is the higher frequency range of investigation. Operating the host product When testing the host product， all the transmitters must be operating.
Wi-linktech Communication Technologies (Shanghai) Co.,Ltd. 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 operatio. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. 2019.03 www.wi-linktech.
