Transciever module 443 Mhz 1 Km SI4432

Number

Pins definition

Description

1

GND

N/A

2

GPIO0

Internal has connected the emission control module feet

3

GPIO1

Internal has connected the receiving control module feet

4

GPIO2

Connect the the chip GPIO2 pins directly

5

VCC

Connect power positive 3.3 V

6

SDO

0 ~ VDDV digital output, provide the internal control of the register serial back to read function

7

SDI

Serial data input. 0 ~ VDD V digital input. The pins for the 4 wire serial data serial data flow bus.

8

SCLK

A serial clock input. 0 ~ VDDV digital input. The pins provides the 4 wire serial data clock function

9

nSEL

Serial interface choice input pins. 0 ~ VDDV digital input. The pins for the 4 wire serial data bus provides the choice/make can function, this signal is used to indicate a read/write mode

10

nIRQ

Interrupt output pins

11

SDN

Close input pins. 0 ~ VDDV digital input. In addition to shut down all the mode mode SDN = 0. When SDN = 1 chip will be completely shut down and the content of the register will be lost.

12

GND

N/A

13

ANT

Pick up the coaxial antenna 50

14

GND

N/A