www.nicerf.com BLE5201

NiceRF Wireless Technology Co., Ltd. Rev 1.3 - 2 -

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Catalogue

1. Overview.....................................................................................................................................................................4

1.1 Product Introduction......................................................................................................................................... 4

1.2 Chip characteristics...........................................................................................................................................4

1.3 Features............................................................................................................................................................. 5

1.4 Application........................................................................................................................................................6

2. Precautions for use......................................................................................................................................................6

2.1 BLE description................................................................................................................................................ 6

2.1.1 MTU.......................................................................................................................................................6

2.2 Precautions for module application.................................................................................................................. 6

2.2.1 Judgment conditions for the role of master and slave...........................................................................6

2.2.2 Response of distance to data transmission rate..................................................................................... 6

2.2.3 Module data transmission speed changes..............................................................................................7

2.2.4 Module current may be too high in low power consumption mode..................................................... 7

3. Electrical Characteristics............................................................................................................................................ 7

4. Hardware parameters.................................................................................................................................................. 8

4.1 Internal block diagram.............................................................................................................................................. 8

4.2 Pin definition.............................................................................................................................................................8

4.3 Peripheral routing..............................................................................................................................................9

4.4 Typical application circuit...............................................................................................................................12

5. Function Description.................................................................................................................................................13

5.1 Role description.............................................................................................................................................. 13

5.1.1 Host...................................................................................................................................................... 13

5.1.2 Slave.....................................................................................................................................................15

5.2 Power mode.................................................................................................................................................... 15

5.2.1 Low power mode................................................................................................................................. 15

5.2.2 Wake mode...........................................................................................................................................16

5.3 Data transparent transmission.........................................................................................................................16

5.5 UUID description............................................................................................................................................17

5.6 Connection handle.......................................................................................................................................... 17

5.7 Over-the-air upgrade (OTA DFU) and serial port upgrade............................................................................ 17

5.8 Status printing................................................................................................................................................. 17

6. AT command............................................................................................................................................................. 18

6.1 Configuration mode description..................................................................................................................... 18

6.2 Error code........................................................................................................................................................18

6.3 AT command set...........................................................................................................................................19

6.3.1 Test instruction.....................................................................................................................................19

6.3.2 AT+VERSION Query the firmware version number.......................................................................... 19