KC868-M1 ESP32 I/O pin define

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IIC SDA:16
IIC SCL:15

Relay:33
Digital input:32

IR sender:4
IR receiver:5

energy meter BL0942 RXD: 13
energy meter BL0942 TXD: 14


Ethernet (LAN8720) I/O define:

#define ETH_ADDR        0
#define ETH_POWER_PIN  -1
#define ETH_MDC_PIN    23
#define ETH_MDIO_PIN  18
#define ETH_TYPE      ETH_PHY_LAN8720
#define ETH_CLK_MODE  ETH_CLOCK_GPIO17_OUT