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+--- Thread: KC868-A32M ESP32 I/O pin define (/showthread.php?tid=2826)
KC868-A32M ESP32 I/O pin define - admin - 04-26-2023
#define ANALOG_A1 GPIO34
#define ANALOG_A2 GPIO35
#define ANALOG_A3 GPIO39
#define ANALOG_A4 GPIO36
SDA:GPIO4
SCL:GPIO5
PCF8574:U6 (output1-8): 100 011 = 0x23
PCF8574:U12 (output9-16): 100 100 = 0x24
PCF8574:U50 (output17-24): 100 101 = 0x25
PCF8574:U51 (output25-32): 100 110 = 0x26
-----------------
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:GPIO15
TXD:GPIO13
GSM:
RXD:GPIO33
TXD:GPIO32
433MHz RF receiver: GPIO14
IR receiver: GPIO16