#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

Hi...
I am curious about why all of your I/O expander ports are using PCF8574. Why did you choose PCF8574 instead of MCP23XXX series/MCP23017 ? (some more advantages over the pcf8574)

Добрый день! 
Подскажите пожалуйста, приобрел у вас KC868-Server Ethernet WiFi CM4 + KC868-H32B Pro-2. По вашим видеоурокам собрал KC868-Server Ethernet Домашний помощник освещение, все работает. Как подключить к серверу KC868-Server надежный способ, проводным или MQTT какой лучше, чтобы Работала безотказно KC868-H32B Pro-2. Можете отправить послання. Спасибо!

I am looking for the USB drivers for this. 

Thanks

I have a kincony pir sensor but still waiting to receive the A4 board so in the meantime I was thinking to wire it to a nodemcu esp32. 

Looking at the wiring diagram https://www.kincony.com/how-to-use-pir-sensor.html


How should I wire the signal and COM to a nodemcu ? 

Is the signal just a 3.3v so I can just connect it to any gpio ?
What about the COM ?

Thanks

Hi, I wanted to use this product with Domoticz and I saw that there is a plugin for Kinkony products: K868-A32 and supported by the Plugin for Domoticz? Thank you

I have a 44 year old DIY low voltage lighting system based on TTL circuits that is still going strong. I want to update this system to include smart monitoring.

I have 2 questions.

1) What is the life expectancy of the kc868-a64?
2) What is the duration of your products before they go out if production?

Do you support your products sold by other vendors on Aliexpress like Jijun Automatic Store?

  KC868-A128_PCB_size_2.pdf (Size: 528.27 KB / Downloads: 907)

Hi

Can  I know from where i can download default firmware for kc868-a4

thanks
Imran Alam