improvement:

1. when mqtt broker or server restart, KC868-H32BS can auto connect to mqtt broker again without reboot. such as if home assistant updated new version, after home assistant reboot, H32BS can work well without reboot.


  H32BS_V148_20220819.zip (Size: 53.47 KB / Downloads: 745)

Hi Team, is the KC868-AG ESP32 both 315Mhz & 433Mhz? The Aliexpress listing says it's both 315Mhz & 433Mhz but I can't find any reference to 315Mhz in the documentation. Cheers!

I was using this both KC868-H32B Relay modules with touch switches and MQTT with Home assistant. This was working fine. Suddenly one relay module reset to its ip address to 192.168.1.200 by itself and now nothing is working. Even touch switches are not working. I change the ip back to the existing one. but still doesn't work. Do you have any idea to fix this?

Hello,
I need for my project a cheap 2 line display.
Please suggest me how to wire the SDA and SCL Line.
And maybe you have small code? that would be wonderful.
Thanks

Here is web server demo source code for KC868-A32, use WiFimanager library, easy to config router's ssid and password by webpage. GPIO0 (download button) have use for wifi reset.
[attachment=1260]
   

Attached Files

  KC868-A32_Web_Server.zip (Size: 5.26 KB / Downloads: 1268)

some of KC868-A16 V1.5 hardware version, PCF8574 address is changed. (if you have seen PCB is V1.5 and have GREEN label, you need to use new address value)
before is :

Relay_IIC_address 0x24
Relay_IIC_address 0x25

Input_IIC_address 0x21
Input_IIC_address 0x22


new is :

Relay_IIC_address 0x3C
Relay_IIC_address 0x3D

Input_IIC_address 0x39
Input_IIC_address 0x3A

   

if you don't know your PCF8574 address, you can use this "I2C scan" arduino IDE source code to scan address, it will print value by serial port.

here is source code: 
  i2c-scan-a16.zip (Size: 645 bytes / Downloads: 1217)

Hi

At this video (https://www.youtube.com/watch?v=Obo3YHj2...ex=24&t=2s) you show the way how to connect multi controllers by RS485 and RS232. My question is: Is there a TOGGLE function possible?
One digital input open and cclose relay (TOGGLE)?

Regards

Sten

  Made_for_ESPHome_KC868-E16S.txt (Size: 5.64 KB / Downloads: 999)

esphome:
  name: kc868-e16s
  platform: ESP32
  board: esp32dev
 
 
# Example configuration entry for ESP32
i2c:
  sda: 16
  scl: 15
  scan: true
  id: bus_a


# Example configuration entry
ethernet:
  type: LAN8720
  mdc_pin: GPIO23
  mdio_pin: GPIO18
  clk_mode: GPIO17_OUT
  phy_addr: 0

  # Optional manual IP
#  manual_ip:
#    static_ip: 192.168.1.199
#    gateway: 192.168.1.1
#    subnet: 255.255.255.0 


# Example configuration entry
pcf8574:
  - id: 'pcf8574_hub_out_1'  # for output channel 1-8
    address: 0x21

  - id: 'pcf8574_hub_out_2'  # for output channel 9-16
    address: 0x25

  - id: 'pcf8574_hub_in_1'  # for input channel 1-8
    address: 0x22

  - id: 'pcf8574_hub_in_2'  # for input channel 9-16
    address: 0x24

# Individual outputs
switch:
  - platform: gpio
    name: "e16s-output1"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 0
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "e16s-output2"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 1
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "e16s-output3"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 2
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "e16s-output4"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 3
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "e16s-output5"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 4
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "e16s-output6"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 5
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "e16s-output7"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 6
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "e16s-output8"
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 7
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "e16s-output9"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 0
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "e16s-output10"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 1
      mode: OUTPUT
      inverted: true

  - platform: gpio
    name: "e16s-output11"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 2
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "e16s-output12"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 3
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "e16s-output13"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 4
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "e16s-output14"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 5
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "e16s-output15"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 6
      mode: OUTPUT
      inverted: true
     
  - platform: gpio
    name: "e16s-output16"
    pin:
      pcf8574: pcf8574_hub_out_2
      number: 7
      mode: OUTPUT
      inverted: true
     
binary_sensor:
  - platform: gpio
    name: "e16s-input1"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 0
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "e16s-input2"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 1
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "e16s-input3"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 2
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "e16s-input4"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 3
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "e16s-input5"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 4
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "e16s-input6"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 5
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "e16s-input7"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 6
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "e16s-input8"
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 7
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "e16s-input9"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 0
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "e16s-input10"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 1
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "e16s-input11"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 2
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "e16s-input12"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 3
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "e16s-input13"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 4
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "e16s-input14"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 5
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "e16s-input15"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 6
      mode: INPUT
      inverted: true

  - platform: gpio
    name: "e16s-input16"
    pin:
      pcf8574: pcf8574_hub_in_2
      number: 7
      mode: INPUT
      inverted: true

# Enable logging
logger:

# Enable Home Assistant API
api:

I am currently trying to connect a controller with 16 channels through esphome modbus communication.

https://esphome.io/components/modbus_controller.html

Tried with this example but failed.

uart:
  id: mod_bus
  tx_pin: 17
  rx_pin: 16
  baud_rate: 115200
  stop_bits: 1

Are the tx and rx pin numbers correct?

What part should I edit?
I really need your help.
We are preparing a plant factory, so if this succeeds, we plan to continue ordering 16-channel boards in the future.

to be able to help
Load the controller Modbus sheet.

http://www.koreadigital.com/pages/sensec...load_1.pdf

Hi, 

I'm interesting in controlling all (KC868-H32BS and KC868-E16s etc.) relay's by not only home assistant but with a robust HMI monitor for more reliability and customization; recently I bought KC868-E16s and I noticed that it has a 4 pin Serial interface Rx Tx... which mean that I can control it by UART with the proper HMI display, but also I have a KC868-H32BS & KC868-colb and wondered that could I control it by the HMI by RS485/ RS232 as Master 'if applicable' or there are other ways.


Moreover, I've found the datasheet of the kc868' RS485 protocol but not for RS232!


Note: I'm not an expert in serial communication field.


Thanks