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Hi-Link HLK-B20, Руководство пользователя

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Shenzhen Hi-Link Electronic Co., Ltd.

Manual

HLK-B20

8.1.5. ble_status

Function

Query Bluetooth connection status

Format

at+ ble_status =?\r

Parameter

0: Not connected

1: Connected

8.1.6. ble_name

Function

Query Bluetooth connection status

Format

at+ ble_name =<blename>\r

Parameter

blename: Bluetooth name

8.1.7. default

Function

Restore factory setting

Format

at+ default =1\r

Parameter

No

8.1.8. Reboot

Function

Restart the system

Format

at+ reboot =1\r

Parameter

No

Содержание HLK-B20

Страница 1: ...Shenzhen Hi Link Electronic Co Ltd HLK B20 User Manual BLE 4 2 wireless module...

Страница 2: ...5 Serial port working state conversion 5 6 Led light indication meaning 6 7 Parameter configuration method 6 8 Serial port AT command configuration 6 8 1 AT instruction format 6 8 1 1 Ver 7 8 1 2 Uar...

Страница 3: ...h can realize data conversion between user serial port and Bluetooth interface 1 1 Basic parameters High speed ARM9E core MCU 2 4G 1T1R BLE 4 2 160k programming space 20KB RAM Power supply voltage 0 9...

Страница 4: ...Transmit power 4DB Receiving sensitivity 96dbm Received power 5 1ma Transmit power 4 5ma Antenna type External internal antenna Other parameters Status indicator Status indication Environmental standa...

Страница 5: ...ype Function description Default features 1 RSTN I Chip enable high efficiency CPU reset 2 P07 I O P07 SPI_NSS PWM5 GPIO SPI PWM 3 P14 I O P14 PWM4 GPIO PWM 4 P10 I O P10 PWM0 GPIO PWM 5 P11 I O P11 P...

Страница 6: ...h and serial ports Figure 3 HLK B20 module test board 3 1 Restore factory settings To ensure that all configuration procedures are correct first reset the module to factory settings Modules that are a...

Страница 7: ...uetooth device connected the HLK B20 will turn off the broadcast of the Bluetooth name and other Bluetooth devices will no longer be able to connect to the HLK B20 5 Serial port working state conversi...

Страница 8: ...rt AT command To configure parameters through the serial AT command you need to let the module enter the AT command mode first The serial port configuration tool HLK B20_CONFIG that configures the mod...

Страница 9: ...e system 8 1 1 Ver Function Firmware version query Format at ver r Parameter No 8 1 2 Uart Function Serial port configuration settings Format at uart baud data parity stop r Parameter Baud Baud rate D...

Страница 10: ...le_status r Parameter 0 Not connected 1 Connected 8 1 6 ble_name Function Query Bluetooth connection status Format at ble_name blename r Parameter blename Bluetooth name 8 1 7 default Function Restore...

Страница 11: ...n tool 1 Command window to be sent 2 Serial port number selection 3 Bluetooth name setting 4 Serial port parameters 5 Serial port return command 6 Submit configuration 7 Query configuration 8 Enter tr...

Страница 12: ...and the data received from the module serial port will be sent out by the Bluetooth The module Bluetooth function only supports Bluetooth 4 2 Install the Bluetooth mobile phone test software HLK BLE...

Страница 13: ...ronic Co Ltd Manual HLK B20 Then input the sent data in the send box click Send the data will be received on the serial port and the data sent by the serial port will be received on the app Figure 11...

Страница 14: ...strictly follow this temperature curve If the temperature deviation of the reflow soldering is too large the module will be damaged Temperature setting degrees Celsius Warm zone 1 2 3 4 5 6 7 8 Upper...

Страница 15: ...13 13 Shenzhen Hi Link Electronic Co Ltd Manual HLK B20 Appendix A Document Revision History Version number Revision Scope Date 1 00 2019 4 15...

Страница 16: ...nal 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 oper...

Страница 17: ...ipment 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...

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