目CONTENTS
1. PRODUCT INTRODUCTION........................................................................................................................................ 1
1.1. BRIEF INTRODUCTION........................................................................................................................................ 1
1.2. PRODUCT FEATURES............................................................................................................................................ 1
1.3. PERFORMANCE AND ELECTRICAL PARAMETERS.................................................................................................. 2
1.4. PRODUCT PACKAGE SIZE AND PIN DEFINITION.............................................................................................. 4
1.5. PIN INTRODUCTION............................................................................................................................................ 4
1.6. SYSTEM BLOCK DIAGRAM.................................................................................................................................... 6
1.7. TEST BOARD INTRODUCTION.............................................................................................................................. 6
2. FUNCTION DESCRIPTION........................................................................................................................................ 7
2.1. WIFI INDICATOR FLASHING DESCRIPTION...................................................................................................... 7
2.2. UART TO WIFI STA............................................................................................................................................ 7
2.3. UART TO WIFI AP.............................................................................................................................................. 8
2.4. SERIAL PORT WORKING STATUS CONVERSION.................................................................................................. 8
2.5. SERIAL-TO-NETWORK DATA CONVERSION.......................................................................................................... 9
2.5.1. MODULE AS TCP SERVER................................................................................................................................ 9
2.5.2. MODULE AS TCP CLIENT................................................................................................................................ 9
2.5.3. MODULE AS UDP SERVER.............................................................................................................................. 10
2.5.4. MODULE AS UDP CLIENT.............................................................................................................................. 10
3. AT COMMAND INSTRUCTIONS................................................................................................................................ 10
3.1. BASIC AT COMMANDS........................................................................................................................................ 11
3.2. WI-FI RELATED AT COMMANDS........................................................................................................................ 14
3.3. TCP/IP RELATED AT COMMANDS...................................................................................................................... 15
3.4. BLE RELATED AT COMMANDS............................................................................................................................ 18
3.5. CUSTOM MESSAGE PROMPT INSTRUCTION........................................................................................................ 18
4.AT COMMAND CONTROL CODE EXAMPLE.................................................................................................................. 20
