Hi-Link HLK-B20 - Default Chapter; Table of Contents

Contents
1. Product description....................................................................................................................................... 1
1.1. Basic parameters................................................................................................................................ 1
2. Product Overview......................................................................................................................................... 2
2.1. Technical specifications.....................................................................................................................2
Table 2-1 Product Specifications...................................................................................................... 2
2.2. Hardware description......................................................................................................................... 2
2.3. Block diagram.................................................................................................................................... 3
2.4. Default pin function........................................................................................................................... 3
3. Test board description...................................................................................................................................4
3.1. Restore factory settings......................................................................................................................4
4. Function description......................................................................................................................................5
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. Uart..........................................................................................................................................7
8.1.3. net_commit..............................................................................................................................7
8.1.4. Reconn.................................................................................................................................... 7
8.1.5. ble_status.................................................................................................................................8
8.1.6. ble_name................................................................................................................................. 8
8.1.7. default......................................................................................................................................8
8.1.8. Reboot..................................................................................................................................... 8
9. Configuration Tool Description.................................................................................................................... 9
10. Transparent transmission minimum system................................................................................................9
11. Bluetooth data transmission...................................................................................................................... 10
12. Reflow soldering temperature curve......................................................................................................... 12
Appendix A Document Revision History....................................................................................................... 13