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1

INDEX

GENERAL DESCRIPTION ....................................................................................................................................... 2

1.1.

Features ............................................................................................................................................... 2

Pin assignment .................................................................................................................................................... 4

Package and dimensions ..................................................................................................................................... 5

Main function description ................................................................................................................................... 6

4.1.

MCU ..................................................................................................................................................... 6

4.2.

Memory ............................................................................................................................................... 6

4.3.

Interface ............................................................................................................................................... 6

4.4.

Absolute maximum ratings .................................................................................................................. 6

4.5.

Recommended operating range .......................................................................................................... 7

RF specification ................................................................................................................................................... 7

Power consumption ............................................................................................................................................ 8

Recommended Reflow Profile ............................................................................................................................ 8

AT instruction .................................................................................................................................................... 10

8.1.

General AT instruction description .................................................................................................... 10

8.2.

Operation instruction description ..................................................................................................... 11

8.3.

TCP/UDP port ..................................................................................................................................... 14

8.4.

GPIO/PWM instructions description ................................................................................................. 16

8.5.

SMART LINK instruction description .................................................................................................. 17

8.6.

SOFT AP instructions description ....................................................................................................... 17

8.7.

RF instructions description ................................................................................................................ 18

8.8.

Other description ............................................................................................................................... 23