User Manual
CONTENTS
Terminology&noun interpretation................................................................................................................ 2
1. Introduction............................................................................................................................................3
2. Pin definition......................................................................................................................................... 4
3. Typical application circuits....................................................................................................................6
4. Basic functional instructions..................................................................................................................7
4.1 The principle of transmission.........................................................................................................7
4.2 Module operating mode (transmission and AT command mode)..................................................8
4.3 Description of the input and output pin functions...........................................................................9
4.4 Bluetooth device roles and connections.........................................................................................9
5. A quick start guide...............................................................................................................................10
5.1. Test the debug base plate................................................................................................................. 10
5.2. Quickly verify bluetooth serial transmission................................................................................... 11
6. Low power sleep function....................................................................................................................13
7. AT command.........................................................................................................................................13
7.1 ATinstruction format description......................................................................................................13
7.2 AT instruction list and description....................................................................................................14
8. Wireless settings and queries via Bluetooth.......................................................................................... 18
9. OTA functionality.................................................................................................................................18
10. Contact info..........................................................................................................................................19
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