https://shop.m5stack.com/products/esp32-ethernet-unit-with-poe
This is a generic template needed to make it play nice, without any sensors plugged in.
It'll then use Pins G16 / G17 for the Grove connector
esphome:
name: m5stack-poesp32-01
esp32:
board: m5stack-core-esp32
framework:
type: arduino
# Enable logging
logger:
# Keep this, coz you can't flash shit remotely without it
ota:
# Network interface for PoESP32
ethernet:
type: IP101
mdc_pin: GPIO23
mdio_pin: GPIO18
clk_mode: GPIO0_IN
phy_addr: 1
power_pin: GPIO5
# Enable Home Assistant API
api:
encryption:
# Just leave the one it generates for you
key: "***"