we have updated KC868-A8 PCB V1.4
V1.4 up to use 4 digital input by DS18B20/DHT11/DHT21 or WS2812/B LED strips.
   

1. select a cloud server for MQTT broker, suggest to use Linux server by Amazon AWS or Alibaba cloud.

2. install MQTT broker applicatoin to your server, such as mosquito or EMQ X, chose open source type.

3. allow MQTT ports by cloud server's security group.

4. start MQTT service.

5. set controller's network setting for MQTT Server Domain/IP address, port.

6. use MQTTBox debug tool to send command remote control relay for a testing.


MQTTBox debug tool download: 
https://www.kincony.com/download/client_MQTTBox-win.zip

EMQ X: https://www.emqx.com/en/downloads?product=broker

improvement:

support set domain for your own server. old version only set server IP address by number. This verison can set by a server domain name for TCP and MQTT server, added DNS function.

download the ZIP file , unzip update the bin file for KC868-H32B relay controller by USB-RS232 cable.

  Relay32_V439_211024.zip (Size: 46.96 KB / Downloads: 277)
firmware update tool download: https://www.kincony.com/download/KC868-C...loader.zip

LED Strip chip model: WS2812B

every LED have R,G,B colors:
every LED cost R: 20mA+G: 20mA+B: 20mA=60mA

if you using 1 meter = 30 LEDs 
total cost:60mA*30=1800mA=1.8A  so chose DC5V 2000mA power supply

if you using 10 meter, so will use 300 LEDS
total cost:60mA*30*10=18000mA=18A  so chose > DC5V 18A power supply

-------------------ESPHome Config---------------------------------------------

esphome:
  name: light_strip_30
  platform: ESP32
  board: esp32dev

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

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "KC868-A4 Hotspot"
    password: "12345678"

captive_portal:

# Enable logging
logger:

# Enable Home Assistant API
api:
  password: "1"

ota:
  password: "1"

web_server:
  port: 80
light:
  - platform: fastled_clockless
    chipset: WS2812B
    pin: GPIO13    # Pin Define connected with LED strip
    num_leds: 30  #LEDs number
    rgb_order: GRB
    name: "light_strip_A4"
    effects:
      - addressable_rainbow:        ##defined 7 effects styles
      - addressable_color_wipe:
      - addressable_scan:
      - addressable_twinkle:
      - addressable_random_twinkle:
      - addressable_fireworks:
      - addressable_flicker:

HI

I recently made a device with KC868-H32b that allows me to communicate with HA. It works as expected, 

and I am able to send and reserve messages to and from the KC868-H32b.

The issue I am facing is that when the KC868-H32b is unplugged from power  


HA remembers the last known state the KC868-H32b was in, rather than updating the front end to show that the device has 

gone offline.


So, Is it possible to publish custom topic on kc868-h32b?

For example. 

payload_available and payload_not_available 

Thank you

I have been using the MultiBoard Control interface for KC868-ColB and H32L.  It provides a very nice display of status of all relays and inputs.  However, the six digital inputs to the relay controller (-H32L) are not included.  (Also not included in KBox-Pad).  Is it possible to add these to the MultiBoard panel for KC868-H32L?

IOT application and practice of smart home engineering book published in China. This book have wrote for 2 years. There are some smart home application case and IOT development resource for smart control system. The book we wrote in Chinese words.

here is download tool for ESP32 or ESP8266: https://www.espressif.com/en/support/dow...ther-tools
router firmware:
  esp32_nat_router-master.zip (Size: 692.46 KB / Downloads: 598)
set 3 file address:
0x1000
0x10000
0x8000

  dashboard raw code.txt (Size: 32.83 KB / Downloads: 433)
  automations.zip (Size: 1.08 KB / Downloads: 358)
  binary_sensor.zip (Size: 748 bytes / Downloads: 360)
  configuration.zip (Size: 744 bytes / Downloads: 341)
  light.zip (Size: 745 bytes / Downloads: 361)
  node red dimmer flow 2021 10 15.zip (Size: 3.38 KB / Downloads: 359)
  Nodered heating flow.zip (Size: 2.03 KB / Downloads: 335)
  Nodred Switch flow.zip (Size: 3.04 KB / Downloads: 357)
  sensors.zip (Size: 1.49 KB / Downloads: 341)
  switch.zip (Size: 1.76 KB / Downloads: 341)
  temperaturos ESP home.zip (Size: 823 bytes / Downloads: 349)