B16 ESP32-S3 IO pins define

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IIC Bus:

SDA:GPIO8
SCL:GPIO18

PCF8575relay1-16): i2c address:0x22

PCF8575input1-16): i2c address:0x24

24C02 EPROM i2c address: 0x50
DS3231 RTC i2c address: 0x68
SSD1306 display: i2c address:0x3c
ADS1115 (4CH ADC): i2c address:0x48

Analog input (A1C 0-5v)
Analog input (A2C 0-5v)
Analog input (A3C 4-20mA)
Analog input (A4C 4-20mA)

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free GPIOs (without pull-up resistance on PCB):
GPIO13
GPIO14
GPIO21

free GPIOs (with pull-up resistance on PCB):
GPIO40
GPIO48
GPIO47
GPIO7

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Ethernet (W5500) I/O define:

clk_pin: GPIO1
mosi_pin: GPIO2
miso_pin: GPIO41
cs_pin: GPIO42

interrupt_pin: GPIO43
reset_pin: GPIO44

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RS485:
RXD:GPIO38
TXD:GPIO39

Tuya module:
RXD:GPIO17
TXD:GPIO16

Tuya network button: Tuya module's P28
Tuya network LED: Tuya module's P16
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SD Card:
SPI-MOSI:GPIO10
SPI-SCK:GPIO11
SPI-MISO:GPIO12
SPI-CS:GPIO9