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+--- Thread: AIO Hybrid ESP32-S3 IO pins define (/showthread.php?tid=8532)
AIO Hybrid ESP32-S3 IO pins define - admin - 09-15-2025
ANALOG_A1(0-5v) GPIO5
ANALOG_A2(0-5v) GPIO7
ANALOG_A3(4-20mA) GPIO6
ANALOG_A4(4-20mA) GPIO4
IIC SDA:GPIO8
IIC SCL:GPIO18
PCF8575: i2c address:0x24
PCF8575->P0 (DI1)
PCF8575->P1 (DI2)
PCF8575->P2 (DI3)
PCF8575->P3 (DI4)
PCF8575->P4 (DI5)
PCF8575->P5 (DI6)
PCF8575->P6 (DI7)
PCF8575->P7 (DI8)
PCF8575->P8 (DI9)
PCF8575->P9 (DI10)
PCF8575->P10 (DI11)
PCF8575->P11 (DI12)
PCF8574: i2c address:0x26
PCF8574->P3 (RELAY1)
PCF8574->P4 (RELAY2)
PCF8574->P5 (RELAY3)
PCF8574->P6 (RELAY4)
PCF8574->P7 (RELAY5)
IR Sender: GPIO14
IR Receiver: GPIO17
RF433MHz wireless receiver: GPIO40
------------------------
Ethernet (W5500) I/O define:
clk_pin: GPIO42
mosi_pin: GPIO43
miso_pin: GPIO44
cs_pin: GPIO41
interrupt_pin: GPIO2
reset_pin: GPIO1
--------------------
RS485:
RXD:GPIO47
TXD:GPIO3
--------------------
Tuya wifi module:
RXD:GPIO38
TXD:GPIO39
Tuya network button: Toya module's P28
Tuya network LED: Tuya module's P16
--------------------
Tuya Zigbee module:
RXD: GPIO48
TXD: GPIO15
------------------------
SD Card:
SPI-MOSI:GPIO10
SPI-SCK:GPIO11
SPI-MISO:GPIO12
SPI-CS:GPIO9
SPI-CD:GPIO13
------------------------
24C02 EPROM i2c address: 0x50
SSD1306 display: i2c address:0x3c
DS3231 RTC i2c address: 0x68
MCP4728 DAC: i2c address:0x60