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+--- Thread: KC868-E16T ESP32 and Tuya I/O pin define (/showthread.php?tid=2317)
KC868-E16T ESP32 and Tuya I/O pin define - admin - 09-26-2022
ANALOG_A1 GPIO36
ANALOG_A2 GPIO35
ANALOG_A3 GPIO34
ANALOG_A4 GPIO39
IIC SDA:GPIO16
IIC SCL:GPIO15
PCF8574:U27 (relay1-8): 100 001 = 0x21
PCF8574:U28 (relay9-16): 100 101 = 0x25
PCF8574:U23 (DI1-8): 100 010 = 0x22
PCF8574:U24 (DI9-16): 100 100 = 0x24
RF433MHz wireless receiver: GPIO4
BEEP:GPIO2
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:GPIO13
TXD:GPIO32
TUYA wifi module (3.3v TTL level):
RXD:GPIO14
TXD:GPIO33
LED: GPIO12