Smart Home Automation Forum

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

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RS485:
RXD:GPIO13
TXD:GPIO32

Extend serial port (3.3v TTL level):
RXD:GPIO14
TXD:GPIO33

Hi do you have upgraded wiring diagram and I/O pin define for vestion1.4?

not changed pin define.

What about wiring diagram, I can see some difference eg. NTC TErmistor and Temp and hum. sensor on board?
To witch i2c bus I can use to read this sensos?