Users Manual

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4. Pin assignment

4.1 pin distribution

4.2 Pin definition

Pin No.

Symbol

Function Description

1

GND

Ground

2

SCS

3 wire SPI chip select

3

SCK

3 wire SPI clock input pin

4

SDIO

3 wire SPI read/writer data pin

5

GIO1

Multi-function GIO1/4-wire SPI data output

6

VCC

RF Module Supply voltage input