M5Stack PoESP32 Port and Address Info

GPIO

Ethernet IP101G (SMI)

MDC 23
MDIO 18
CLK 0
PWR 5
PHY ADDR 1

Ethernet IP101G (RMII)

TX_EN 21
TX0 19
TX1 22
RX0 25
RX1 26
CRS_DV 27

I2C

RX 16
TX 17

I2C DEVICES

SHT40 Temp + Humidity

Address 0x44

BMP280 Pressure (not used in this project)

Address 0x76