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Latest Threads
Force sensitive sensor wi...
Forum: KC868-A series and Uair Smart Controller
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how to set "momentary" & ...
Forum: B16M
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[Bug] A16v3 (v3.24.3) - W...
Forum: "KCS" v3 firmware
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  SHT30 temp/humidity i2c sensor to Kincony B8
Posted by: zbarothi - 03-20-2026, 09:13 AM - Forum: B8 - Replies (6)

Hi,

I am trying to connect an SHT30 temperature and humidity i1c sensor to a Kincony B8 using free GPIOs 47 and 48. https://shop.kincony.com/products/sht30-...tion-cable

I have ESPHome firmware on the board with this config:

i2c:

  - id: bus_b
    sda: GPIO47
    scl: GPIO48
    scan: true
    frequency: 100kHz


sensor:
  - platform: sht3xd
    i2c_id: bus_b
    address: 0x44
    update_interval: 60s
    temperature:
      name: "Homerseklet"
      device_class: "temperature"
      state_class: "measurement"
    humidity:
      name: "Paratartalom"
      device_class: "humidity"
      state_class: "measurement"


I have tried many variations, switching the SDA and SCL etc but no luck. The device is not detected. Am I using the correct GPIOs?  (see attached photo)

black -> ground
yellow -> 47
blueish green -> 48
red -> 3V

   

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  E16V3 - Dimensions compatibility with domestic electrical enclosures
Posted by: ldebacker - 03-20-2026, 08:34 AM - Forum: Suggestions and feedback on KinCony's products - Replies (3)

The E16V3 can't be nicely integrated in domestic electrical enclosures.

This forces cutting the plastic of the enclosures, which is not nice.

It would be good to have a cover compatible with those standardized enclosures:
- Width equal to a number of standard module (18mm I think)
- Height of the prominent part = 45 mm.

BRs,

Laurent

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  E16V3 - Cover electrical insulation
Posted by: ldebacker - 03-20-2026, 08:22 AM - Forum: Suggestions and feedback on KinCony's products - Replies (1)

Hi,
The cover of the E16V3 seems to be coated metal.

Rigid or semi-rigid wires are screwed on the terminal block , with the risk that the tip of the wire will touch the cover.

Although the coated layer isolates the cover from the wire, this layer is very thin and the wire could scratch the coating so that the cover could quickly be submitted to high voltage.

There should be additional isolation between the terminal block and the cover, such as a plastic strip glued to the cover.

BRs,

Laurent

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  Github ... finally?
Posted by: spacerunner - 03-20-2026, 07:46 AM - Forum: Suggestions and feedback on KinCony's products - Replies (1)

Hi,

Being a long time user of Koncony products now, I wonder why not move the Kincony products codebase to GitHub?

I know this is asked a lot for existing projects / companies. But it would be a great, much more efficient experience for most, if not even all Kincony users / customers.

Most users today use GitHub, engineers do anyway. As well as the directly connected technologies, for example ESPHome and Tasmota.

I am confident that this would open a much wider audience on Kinconys products, make issues and pull requests possible and much, much more.

Do you see a chance of this happening?

Bet wishes,
Stefan

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  ESP32 Smart Controller – B4 (4CH Relay) Schematic
Posted by: Anne - 03-20-2026, 07:26 AM - Forum: Schematic & diagram & Dimensions of KinCony PCB layout CAD file - Replies (4)

Hi,

Is a schematic available for the "ESP32 Smart Controller – B4 (4CH Relay)"?

Kind regards,
Anne

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Photo AS-ESP32-S3 won't initialize
Posted by: scottq - 03-19-2026, 06:49 PM - Forum: Getting Started with ESPHome and Home Assistant - Replies (10)

I just purchased a AS-ESP32-S3 device to act as a voice assistant for my Home Assistant. When I received the unit, something inside it was rattling around loosely - like something had broken inside. Not sure if that's ultimately important or not. 

When I plugged the device into the HA server, all of the lights turned blue and a tone built up in about 3 steps to a steady tone. The tone continued without stopping for as long as I had the device plugged it (up to 15 minutes, when I unplugged it). It doesn't seem to me that it was flashed with any new firmware as described in this YouTube video: https://www.youtube.com/watch?v=g-KsrZjFljY

While the tone was sounding, I did try to configure the device in my home assistant. I selected "Add Device", saw ESPHome and selected it, and was presented with a modal asking for the host ip address, which I provided. I got a "Unable to connect to the ESPHome device. Make sure the device's YAML configuration includes an 'api' section." as shown in the attached screenshot. I have no way to access any YAML that the device might be using since I can't access the device and can't do anything with it in Home Assistant.

What do I do to get this thing working?

Scott



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  I don't understand the #Enable error on the protocols.
Posted by: H_spadacini - 03-19-2026, 05:12 PM - Forum: T16M - Replies (1)

Quand je reprends le programme pour le T16M diffuse en exemple : https://devices.esphome.io/devices/kincony-t16m/ sur site GIT, or je reçois une erreur a la compilation de cet exemple :
# Enable logging
logger:
# Enable Home Assistant API
api:
msg erreur 
 C:\Users\Herve\Downloads\Kincony\T16M\Programme_Base_T16M\Programme_Base_T16M.ino:10:3: error: invalid preprocessing directive #Enable
  10 | # Enable logging
      |  ^~~~~~
C:\Users\Herve\Downloads\Kincony\T16M\Programme_Base_T16M\Programme_Base_T16M.ino:13:3: error: invalid preprocessing directive #Enable
  13 | # Enable Home Assistant API
      |  ^~~~~~
exit status 1

Compilation error: invalid preprocessing directive #EnableC:\Users\Herve\Downloads\Kincony\T16M\Programme_Base_T16M\Programme_Base_T16M.ino:10:3: error: invalid preprocessing directive #Enable
  10 | # Enable logging
      |  ^~~~~~
C:\Users\Herve\Downloads\Kincony\T16M\Programme_Base_T16M\Programme_Base_T16M.ino:13:3: error: invalid preprocessing directive #Enable
  13 | # Enable Home Assistant API
      |  ^~~~~~
exit status 1

Compilation error: invalid preprocessing directive #Enable

comme je suis debutant en arduino/ESP32S3, il me semble que la syntaxe manquant devrait comprends une fonction disable par fonction mais sur pas encore un as en arduino..mdr
j'ai besoin de votre lumiere merci d'avance. cela parce preparant le code pour le relay T16M.
la config : AIO maitre , T16M : Esclave pour compense le manque d'entrées /sorties de l'aio Hybride en reseau modbus , avec un ecran 7 pouces en Modbus . pour la programmation suis partir sur un melange en arduino avec EditeurPlc pour la partir PLC.
en autre , pour ce dernier , on doit declarer les variables externes ESP32S3, donc partir programmation sur le T16M me semble une bonne idee , merci de votre reponse.

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  Advice for DIY underfloor heating (7 zones, 2 floors, boiler control) using KinCony b
Posted by: torokzoli - 03-18-2026, 06:21 PM - Forum: DIY Project - Replies (3)

Hi,

I would like to ask for advice on which KinCony products would be best for controlling my water‑based underfloor heating system.

System layout:
Upstairs: 4 heating loops (manifold circuits) to be controlled separately.
Ground floor: 3 heating loops to be controlled separately.

In addition, I need to:
Switch the ground floor zone valve and the upstairs zone valve. 
Provide a boiler enable signal via a volt‑free (dry) contact.

The existing “dumb” system should remain functional in parallel at first:
There is one programmable thermostat for the upstairs and one for the ground floor.These currently control the boiler and the two main zone valves.

Hardware idea:

I already have a KC868‑A8, which I plan to use for the ground floor (3 loops + ground‑floor zone valve  + upstairs zone valve + boiler enable + some spare relays).

For the upstairs I am considering a KC868‑A6, which would handle the 4 loops and the upstairs zone valve. 

A small amount of wiring between the floors is possible.

Control requirements:
I would like the basic heating logic (room thermostats, loop valves, zone valves, boiler enable) to run locally on the KinCony devices themselves, without depending on any central controller (so that heating continues to work even if Home Assistant or the network is down).

At the same time, I would like to be able to override or adjust the behaviour from Home Assistant when desired (setpoints, manual on/off, etc.).

Questions:
Does the combination KC868‑A8 (ground floor) + KC868‑A6 (upstairs) make sense for this scenario, or would you recommend a different KinCony board combination for 7 loops + 2 zone valves + boiler enable?
What is the recommended way to implement the local control logic on these boards (KinCony original firmware rules, ESPHome, Tasmota, custom ESP32 code, etc.), given that:
It should work safely and autonomously.
It should still be easy to integrate with Home Assistant.

Could you recommend any wireless room thermostats that can communicate directly with KinCony hardware (for example via LoRa, nRF24L01, 433 MHz, or another protocol supported by KC868‑A series), so that I could replace the existing wired thermostats completely in the future?

Any wiring diagrams, example projects or firmware configurations for a similar 2‑floor underfloor heating system would be very helpful.

Thank you in advance for your support!

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Sad A8 brick
Posted by: kid - 03-18-2026, 08:50 AM - Forum: KC868-A series and Uair Smart Controller - Replies (3)

Hi, unfortunately the flashing of the Kincony A8 failed. I flashed a compiled esphome bin file. It stopped always after a few percent. I tried multiple cables and an different baud rates. No success and now it is not responding anymore / seems bricked. I was working from a linux device:


.pdf   flash.pdf (Size: 74.75 KB / Downloads: 185)

It is the first time ever I had such an issue with an esp device. And I use them a lot - with WLED, custom procects etc. Is there maybe something wrong with the pcb design?

I hoped by buying a more expensive relais board to get not into trouble.

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  Kincony KC868-A16 (ESP32) - I2C PCF8574 entities visible in HA but not responding (I2
Posted by: bobbisasha - 03-17-2026, 05:41 PM - Forum: KC868-A16 - Replies (3)

Hi everyone,
I’m struggling with a Kincony KC868-A16 board (ESP32-based) integrated with ESPHome in Home Assistant. I can see all the entities (switches and binary sensors) in my HA dashboard, but none of the physical relays or digital inputs are responding.
The Hardware:

  • Board: Kincony KC868-A16 (V1.5 or similar with 4x PCF8574 IO Expanders).
  • Power: Externally powered with a stable 12V 2A DC supply.
  • Checked with Multimeter: PCF8574 chips are correctly powered at 3.3V.
The Problem: When I toggle a switch in Home Assistant, the UI icon turns "ON" for a split second and then immediately reverts to "OFF". This suggests an I2C communication timeout or write failure. No physical "click" is heard from the relays, and LEDs don't light up.
ESPHome Logs: The I2C scan successfully finds all 4 chips at the expected addresses:
  • Code:
    Found device at address 0x21
     (Inputs)
  • Code:
    Found device at address 0x22
     (Inputs)
  • Code:
    Found device at address 0x24
     (Outputs/Relays)
  • Code:
    Found device at address 0x25
     (Outputs/Relays)
Log output: 
Code:
[C][pcf8574:024]: PCF8574: Is PCF8575: NO, Address: 0x24
 However, when I trigger a relay, nothing happens physically.

here some .yaml config examples for my digital sensors and outputs: 
Code:
remote_receiver:
  pin:
    number: GPIO2
    ignore_strapping_warning: true # Could this be interfering with I2C boot?

remote_transmitter:
  pin:
    number: GPIO15
    ignore_strapping_warning: true
  carrier_duty_percent: 100%

i2c:
  sda: GPIO4
  scl:
    number: GPIO5
    #ignore_strapping_warning: true
  scan: true
  id: bus_a

pcf8574:
  - id: 'pcf8574_hub_out_1' # for output channel 1-8
    address: 0x24
  - 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: 0x21

binary_sensor:
  - platform: gpio
    name: 'Digital Input 01'
    id: input1
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 0
      mode: INPUT
      inverted: true
    internal: false

switch:
  - platform: gpio
    name: 'Ouput Relay 01'
    id: sensor_relay_1
    restore_mode: RESTORE_DEFAULT_OFF
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 0
      mode: OUTPUT
      inverted: false
    internal: false

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