Here is "KCS" firmware for KinCony KC868-A series (ESP32) board.
How to download and use, online guide: https://www.kincony.com/kcs-firmware-esp32-board.html
   
v1.0.24 improment:

1. Fix some text in webpage.
2. Fix timer bug for different channel reset problem.
3. Let MQTT message feedback only one time, before will be twice.
4. Support RS485 MODBUS Button Adapter – KC868-HA
5. Fix bug of DAC output with tuya app problem.

Attached Files

  KCS_KC868_A4_V1.0.24.zip (Size: 737.3 KB / Downloads: 449)
  KCS_KC868_A6_V1.0.24.zip (Size: 744.95 KB / Downloads: 238)
  KCS_KC868_A8_V1.0.24.zip (Size: 748.43 KB / Downloads: 285)
  KCS_KC868_A8S_V1.0.24.zip (Size: 755.91 KB / Downloads: 257)
  KCS_KC868_A16_V1.0.24.zip (Size: 756.16 KB / Downloads: 296)
  KCS_KC868_A32_V1.0.24.zip (Size: 756.24 KB / Downloads: 275)
  KCS_KC868_A64_V1.0.24.zip (Size: 756.17 KB / Downloads: 227)
  KCS_KC868_A128_V1.0.24.zip (Size: 756.25 KB / Downloads: 223)
  KCS_KC868_AI_V1.0.24.zip (Size: 750.33 KB / Downloads: 394)
  KCS_KC868_AK_V1.0.24.zip (Size: 738.35 KB / Downloads: 213)
  KCS_KC868_E16S_V1.0.24.zip (Size: 756.17 KB / Downloads: 221)
  KCS_KC868_A2_V1.0.25.zip (Size: 716.5 KB / Downloads: 191)

  H32B_Pro_V1.16_230404.zip (Size: 54.87 KB / Downloads: 209)

improvement:

add "MOTT feedback all channels" option in webpage setting. Support home bridge.

Enable= MQTT message will feedback all channels state
Disable= MQTT message will feedback single channel

   
   

Can anybody help me with information relating to the ESP32 GPIO pin used to connect the IRQ (nINT) from the PCF8574 (Digital inputs 1 to 6).

I need to be able to capture very irregular (maybe 10 per minute) but short pulses (< 10mS duration) pulses without missing any.

I would hate to have to schedule I2C reads every 5mS or less to make sure nothing is missed.

I have had a look at the KC868-A4 schematic and the DI1-DI4 pins are directly GPIO connect, not through a PCF8574 GPIO extender.

Hi
It's possible to use the bluetooth of the A8 ;
How to have access to bluetooth (esphome, tasmota, KCS); 

Thank you.

I am building a house, tell me what is better to use for a smart home:
16 group curtains and roller shutters (I have an RR06 receiver under the roller shutter and I need to connect it to a low current switch and see them in the home assistant) ).
I want to manage underfloor heating, I have 2 floors and warm floors everywhere, it is desirable to manage separately separately.
I will also have RGB in my room and the lighting will also control it (about 5 rooms with RGB), and around the house there will also be ice in the caecum, but an ordinary tape, 300 meters of tape in a circle.
There is also a snow melting system in a circle (ProfiTherm D-4, D-3, ProfiTherm Eko Plus), the shower would be controlled. Lighting will also be about 50 groups.
Cameras in a circle (I want to implement the structure of faces)
Also interested in IC management.
I have a rassbury pi 4 8gb.

   
   

esphome:
  name: a8s
  platform: ESP32
  board: esp32dev
 
wifi:
  ssid: "KinCony"
  password: "a12345678"

captive_portal:


uart:
  id: mod_bus
  tx_pin: 33
  rx_pin: 32
  baud_rate: 9600
  stop_bits: 1
  parity: EVEN

modbus:
  id: modbus1
  uart_id: mod_bus

modbus_controller:
  - id: a8s
    address: 0x01
    modbus_id: modbus1
    setup_priority: -10
    update_interval: 5s


sensor:
  - platform: modbus_controller
    modbus_controller_id: a8s
    name: "Voltage"
    id: modbus_voltage
    register_type: holding
    address: 0x64
    unit_of_measurement: "V"
    value_type: FP32
    accuracy_decimals: 2

  - platform: modbus_controller
    modbus_controller_id: a8s
    name: "Current"
    id: modbus_current
    register_type: holding
    address: 0x6A
    unit_of_measurement: "A"
    value_type: FP32
    accuracy_decimals: 2

  - platform: modbus_controller
    modbus_controller_id: a8s
    name: "Active Power"
    id: modbus_Active_Power
    register_type: holding
    address: 0x76
    unit_of_measurement: "kW"
    value_type: FP32
    accuracy_decimals: 2

  - platform: modbus_controller
    modbus_controller_id: a8s
    name: "Power Factor"
    id: modbus_Power_Factor
    register_type: holding
    address: 0x8E
    unit_of_measurement: ""
    value_type: FP32
    accuracy_decimals: 2

  - platform: modbus_controller
    modbus_controller_id: a8s
    name: "Grid Frequency"
    id: modbus_Grid_Frequency
    register_type: holding
    address: 0x90
    unit_of_measurement: "hz"
    value_type: FP32
    accuracy_decimals: 2

  - platform: modbus_controller
    modbus_controller_id: a8s
    name: "Total Energy"
    id: modbus_Total_Energy
    register_type: holding
    address: 0x0
    unit_of_measurement: "kWh"
    value_type: FP32
    accuracy_decimals: 2

# Enable logging
logger:

# Enable Home Assistant API
api:

yaml file for KC868-A8S download:

  HA_modbus_energy-meter.txt (Size: 1.91 KB / Downloads: 677)

KinCony energy meter RS485 modbus protocol document:

  KinCony-energy-meter-rs485-modbus-protocol.pdf (Size: 117.75 KB / Downloads: 793)

   
   
uart:
  id: mbus
  tx_pin: GPIO13
  rx_pin: GPIO16
  baud_rate: 9600

modbus:
  id: modbus1
  uart_id: mbus
  send_wait_time: 200ms

modbus_controller:
- id: a6
  address: 1
  modbus_id: modbus1
  update_interval: 1s

switch:
  - platform: modbus_controller
    name: 'modbus-switch1'
    address: 0  # 0:relay1  1:relay2 ......
    register_type: coil
    bitmask: 1

this is a demo , i have created one switch button in ESPHome, you can create many others.

KinCony Products use modbus command:
01 05 00 00 FF 00  turn on relay1
01 05 00 00 00 00  turn off relay1

make sure your relay board as these:
ON = 0xFF00  OFF=0000

if your relay board not use by this protocol. you can also write esphome as "write_lambda" way. i have tested, "write_lambda" to create switch also work fine. just need to create ON and OFF two command.

    write_lambda: |-
      ESP_LOGD("main","Modbus Switch incoming state = %f",x);
      // return false ; // use this to just change the value
      payload.push_back(0x1);  // device address
      payload.push_back(0x5);  // force single coil
      payload.push_back(0x00); // high byte address of the coil
      payload.push_back(0x00);  // low byte address of the coil
      payload.push_back(0xFF); // ON = 0xFF00 OFF=0000
      payload.push_back(0x00);
      return true;

   

Big HD file download:

  KC868-AIO_diagram.zip (Size: 9.01 MB / Downloads: 283)

Hello.
I need some help with the setup. I have bought a KC868-64 board and I would like to connect an RS485 meter to this board, specifically a DDS 238. Using ESP Home. Can you help?
Thank you very much.
Ladislav

use KC868-A16 work with KC868-H32BS by RS485 cable via modbus.

this is a demo , i have created one switch button in ESPHome, you can create many others.

KC868-H32BS use modbus command:
01 05 00 00 FF 00  CRC turn on relay1
01 05 00 00 00 00  CRC turn off relay1

make sure your relay board as these:
ON = 0xFF00 OFF=0000

if your relay board not use by this protocol. you can also write esphome as "write_lambda" way. i have tested, "write_lambda" to create switch also work fine. just need to create ON and OFF two command.

   
   
yaml files for KC868-A16 work with modbus switch:

  ESPHome_A16_modbus_relay.txt (Size: 6.5 KB / Downloads: 581)