<![CDATA[Smart Home Automation Forum - KC868-AK]]> https://www.kincony.com/forum/ Sat, 09 May 2026 22:45:28 +0000 MyBB <![CDATA[Questions about KinCony String Protocol over RS485 for ESPHome Integration]]> https://www.kincony.com/forum/showthread.php?tid=8181 Thu, 12 Jun 2025 13:49:49 +0800 itzek]]> https://www.kincony.com/forum/showthread.php?tid=8181 I want to send activation commands from 1 KC868-A to 2 different H32B PRO controllers.
I'm integrating a KC868-AK ESP32 board (as an input controller) with other KinCony relay boards (as slaves) using RS485 and your String Protocol. I've seen the KC868-A-series-protocol-String_firmware_V2-2.pdf document and understand that the String Protocol is supported over RS485.

  1. String Protocol DEV_ID: How is the DEV_ID (e.g., "255" in RELAY-KEY-255,id,1) set/configured on KinCony relay boards for RS485 String Protocol? Is there a default, and can it be changed?
  2. RS485 Settings: What are the exact default/recommended RS485 settings (Baud Rate, Stop Bits, Parity) for KinCony boards using the String Protocol?
  3. RTS Pin for KC868-AK RS485: Is an RTS pin required for RS485 communicationon the KC868-AK ESP32 with the String Protocol? If so, which GPIO pin and is it active HIGH/LOW?
  4. Relay ID Mapping:  Does the id in RELAY-KEY-DEV_ID,id,1 directly correspond to the physical relay number (e.g., id=1 for Relay 1, id=16 for Relay 16)?
Thank you for your help]]> I want to send activation commands from 1 KC868-A to 2 different H32B PRO controllers.
I'm integrating a KC868-AK ESP32 board (as an input controller) with other KinCony relay boards (as slaves) using RS485 and your String Protocol. I've seen the KC868-A-series-protocol-String_firmware_V2-2.pdf document and understand that the String Protocol is supported over RS485.

  1. String Protocol DEV_ID: How is the DEV_ID (e.g., "255" in RELAY-KEY-255,id,1) set/configured on KinCony relay boards for RS485 String Protocol? Is there a default, and can it be changed?
  2. RS485 Settings: What are the exact default/recommended RS485 settings (Baud Rate, Stop Bits, Parity) for KinCony boards using the String Protocol?
  3. RTS Pin for KC868-AK RS485: Is an RTS pin required for RS485 communicationon the KC868-AK ESP32 with the String Protocol? If so, which GPIO pin and is it active HIGH/LOW?
  4. Relay ID Mapping:  Does the id in RELAY-KEY-DEV_ID,id,1 directly correspond to the physical relay number (e.g., id=1 for Relay 1, id=16 for Relay 16)?
Thank you for your help]]> <![CDATA[RS485 usage]]> https://www.kincony.com/forum/showthread.php?tid=6976 Sun, 03 Nov 2024 06:46:28 +0800 charlesjabged]]> https://www.kincony.com/forum/showthread.php?tid=6976 https://www.kincony.com/forum/attachment.php?aid=2240
but it is really unclear to me.

I try coils, inputs reg, and holding with:
1 stop bit, no parity, 9600 baud.

I have 3 others devices that work well on the same modbus line ( with different MB address ).

Can you help me with the correct way to poll button status ? (i will do a request every 1sec).

thank you in advance.]]> https://www.kincony.com/forum/attachment.php?aid=2240
but it is really unclear to me.

I try coils, inputs reg, and holding with:
1 stop bit, no parity, 9600 baud.

I have 3 others devices that work well on the same modbus line ( with different MB address ).

Can you help me with the correct way to poll button status ? (i will do a request every 1sec).

thank you in advance.]]> <![CDATA[AK not connecting to controller]]> https://www.kincony.com/forum/showthread.php?tid=5655 Sun, 28 Apr 2024 11:23:39 +0800 mutaz]]> https://www.kincony.com/forum/showthread.php?tid=5655
My AK board is not connecting to controller. Only one light red showing. It was working before but suddenly stop.
I tried to use a different AK to the same controller but also didn't work.

What should I do?]]>
My AK board is not connecting to controller. Only one light red showing. It was working before but suddenly stop.
I tried to use a different AK to the same controller but also didn't work.

What should I do?]]> <![CDATA[AK circuit diagram]]> https://www.kincony.com/forum/showthread.php?tid=4037 Mon, 25 Dec 2023 11:04:36 +0800 KinCony Support]]> https://www.kincony.com/forum/showthread.php?tid=4037
.jpg   32B PRO AK E16V2-02.jpg (Size: 7.25 MB / Downloads: 737)

.jpg   32B PRO DC.jpg (Size: 2.68 MB / Downloads: 737)

.jpg   32B PRO-CURTAIN-03.jpg (Size: 3.95 MB / Downloads: 703) ]]>
.jpg   32B PRO AK E16V2-02.jpg (Size: 7.25 MB / Downloads: 737)

.jpg   32B PRO DC.jpg (Size: 2.68 MB / Downloads: 737)

.jpg   32B PRO-CURTAIN-03.jpg (Size: 3.95 MB / Downloads: 703) ]]> <![CDATA[KC868-AK ESPHome demo config for home assistant]]> https://www.kincony.com/forum/showthread.php?tid=2402 Sun, 20 Nov 2022 20:17:38 +0800 admin]]> https://www.kincony.com/forum/showthread.php?tid=2402   name: kc868-ak
  platform: ESP32
  board: esp32dev
 
 
# Example configuration entry for ESP32
i2c:
  sda: 4
  scl: 5
  scan: true
  id: bus_a

wifi:
  ssid: "KinCony"
  password: "a12345678"

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "A4 Fallback Hotspot"
    password: "ZvKhDPUYilHj"

captive_portal:



# Example configuration entry
pcf8574:
  - id: 'pcf8574_hub_in_1'  # for input channel 1-8
    address: 0x24

  - id: 'pcf8574_hub_in_2'  # for input channel 9-16
    address: 0x25

  - id: 'pcf8574_hub_in_3'  # for input channel 17-24
    address: 0x21

  - id: 'pcf8574_hub_in_4'  # for input channel 25-32
    address: 0x22

  - id: 'pcf8574_hub_in_5'  # for input channel 33-40
    address: 0x26



# Individual outputs

binary_sensor:
  - platform: gpio
    name: "ak-input1"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 0
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input2"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 1
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input3"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 2
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input4"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 3
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input5"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 4
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input6"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 5
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input7"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 6
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input8"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 7
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input9"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 0
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input10"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 1
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input11"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 2
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input12"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 3
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input13"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 4
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input14"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 5
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input15"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 6
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input16"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 7
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input17"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 0
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input18"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 1
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input19"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 2
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input20"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 3
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input21"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 4
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input22"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 5
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input23"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 6
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input24"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 7
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input25"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 0
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input26"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 1
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input27"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 2
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input28"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 3
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input29"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 4
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input30"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 5
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input31"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 6
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input32"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 7
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input33"
    pin:
      pcf8574: pcf8574_hub_in_5
      number: 0
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input34"
    pin:
      pcf8574: pcf8574_hub_in_5
      number: 1
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input35"
    pin:
      pcf8574: pcf8574_hub_in_5
      number: 2
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input36"
    pin:
      pcf8574: pcf8574_hub_in_5
      number: 3
      mode: INPUT
      inverted: true

# Enable logging
logger:

# Enable Home Assistant API
api:



.txt   KC868-AK_ESPhome.txt (Size: 6.06 KB / Downloads: 608) ]]>   name: kc868-ak
  platform: ESP32
  board: esp32dev
 
 
# Example configuration entry for ESP32
i2c:
  sda: 4
  scl: 5
  scan: true
  id: bus_a

wifi:
  ssid: "KinCony"
  password: "a12345678"

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "A4 Fallback Hotspot"
    password: "ZvKhDPUYilHj"

captive_portal:



# Example configuration entry
pcf8574:
  - id: 'pcf8574_hub_in_1'  # for input channel 1-8
    address: 0x24

  - id: 'pcf8574_hub_in_2'  # for input channel 9-16
    address: 0x25

  - id: 'pcf8574_hub_in_3'  # for input channel 17-24
    address: 0x21

  - id: 'pcf8574_hub_in_4'  # for input channel 25-32
    address: 0x22

  - id: 'pcf8574_hub_in_5'  # for input channel 33-40
    address: 0x26



# Individual outputs

binary_sensor:
  - platform: gpio
    name: "ak-input1"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 0
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input2"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 1
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input3"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 2
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input4"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 3
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input5"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 4
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input6"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 5
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input7"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 6
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input8"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 7
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input9"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 0
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input10"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 1
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input11"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 2
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input12"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 3
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input13"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 4
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input14"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 5
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input15"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 6
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input16"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 7
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input17"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 0
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input18"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 1
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input19"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 2
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input20"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 3
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input21"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 4
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input22"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 5
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input23"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 6
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input24"
    pin:
      pcf8574: pcf8574_hub_in_3
      number: 7
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input25"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 0
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input26"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 1
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input27"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 2
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input28"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 3
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input29"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 4
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input30"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 5
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input31"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 6
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input32"
    pin:
      pcf8574: pcf8574_hub_in_4
      number: 7
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input33"
    pin:
      pcf8574: pcf8574_hub_in_5
      number: 0
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input34"
    pin:
      pcf8574: pcf8574_hub_in_5
      number: 1
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input35"
    pin:
      pcf8574: pcf8574_hub_in_5
      number: 2
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "ak-input36"
    pin:
      pcf8574: pcf8574_hub_in_5
      number: 3
      mode: INPUT
      inverted: true

# Enable logging
logger:

# Enable Home Assistant API
api:



.txt   KC868-AK_ESPhome.txt (Size: 6.06 KB / Downloads: 608) ]]> <![CDATA[KC868-AK ESP32 I/O pin define]]> https://www.kincony.com/forum/showthread.php?tid=2401 Sun, 20 Nov 2022 20:16:38 +0800 admin]]> https://www.kincony.com/forum/showthread.php?tid=2401
SDA:GPIO4
SCL:GPIO5

PCF8574:U14 (DI1-8): 100 100 = 0x24
PCF8574:U31 (DI9-16): 100 101 = 0x25
PCF8574:U56 (DI17-24): 100 001 = 0x21
PCF8574:U57 (DI25-32): 100 010 = 0x22
PCF8574:U58 (DI33-40): 100 110 = 0x26
PCF8574:U32 (DI41-48): 100 011 = 0x23


free GPIO:
GPIO35
GPIO39
GPIO34
GPIO36

-----------------

RS485:
RXD:GPIO16
TXD:GPIO14

RS232:
RXD:GPIO33
TXD:GPIO32]]>
SDA:GPIO4
SCL:GPIO5

PCF8574:U14 (DI1-8): 100 100 = 0x24
PCF8574:U31 (DI9-16): 100 101 = 0x25
PCF8574:U56 (DI17-24): 100 001 = 0x21
PCF8574:U57 (DI25-32): 100 010 = 0x22
PCF8574:U58 (DI33-40): 100 110 = 0x26
PCF8574:U32 (DI41-48): 100 011 = 0x23


free GPIO:
GPIO35
GPIO39
GPIO34
GPIO36

-----------------

RS485:
RXD:GPIO16
TXD:GPIO14

RS232:
RXD:GPIO33
TXD:GPIO32]]>