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+--- Thread: KC868-AP ESP32 I/O pin define (/showthread.php?tid=2475)
KC868-AP ESP32 I/O pin define - admin - 12-27-2022
IIC SDA:GPIO4
IIC SCL:GPIO16
PCF8574:U14 (DI1-8): 0x22
PCF8574:U31 (DI9-16): 0x21
PCA9685 IIC address: 0x00
DI17: GPIO34
DI18: GPIO35
Relay1: GPIO13
Relay2: GPIO2
Button_Download: GPIO0
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
--------------------
RS485:
RXD:GPIO33
TXD:GPIO14
Extend serial:
GPIO5
GPIO32