Hi,

On the KC868-A6 board, there are no directly accessible GPIOs like on the KC868-A6 v3.
Is it possible to reuse or repurpose some GPIOs without soldering or desoldering components?
I was considering IO13 from the internal serial port (P17 interface), but I’m unsure because the CPU schematic shows IO13 as not connected (marked with a red cross).
Are there any other GPIOs that might be available?

Thanks in advance for your help.

Attached Files

  KC868-A6-schematic.pdf (Size: 576.02 KB / Downloads: 56)

Board Model: KC868_A64
Software Version: v1.0.27
HAOS
Core: 2026.2.1
Supervisor: 2026.02.1



I have to use KCS v1 because of problems with newer versions.

I have problems exacly like in this post link

SET topic works corectly but STATE dont update entities. I believe this is not a problem with STATE json 

its  correct to connect the 8 port in the energy meter to the a port a in thr rs485 and the 7 port in the b in the a24 kincony?

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Hello,
I am experiencing two possibly related issues with my Kincony A-128 controller.

• One section has 8 LEDs dimly ON
  
• Another section has 4 out of 8 LEDs dimly ON
  
• The remaining 14 sections work correctly
  
• The issue always affects the same sections
  
• LEDs are visible directly on the board
  
• I may have accidentally caused a short circuit on these outputs during wiring
  

• The module freezes
  
• All channels turn OFF
  
• Home Assistant shows the device as offline
  
• The module does not reconnect automatically
  
• I have to disconnect power completely and power it on again for Home Assistant to discover it again
  

• If I turn the outputs on slowly / step by step, the problem does not occur
  
• The problem only appears when switching many outputs ON simultaneously
  

• Most outputs are connected to 6A relays
  
• Some outputs are connected to WAGO 16A relays (higher current consumption)
  
• All relays and the A-128 module are powered from the same 24V power supply
  
• Control voltage and relay supply voltage are both 24V
  

1. Could the dimly glowing LEDs indicate damaged output channels?
   
2. Could the freeze/offline behavior be caused by power supply overload or voltage drop when switching all outputs at once?
   
3. Is this a known behavior of the A-128 when driving many relays simultaneously?
   
4. Has anyone experienced similar issues with A-128 and Home Assistant?
   

• Firmware version
  
• Power supply specifications
  
• Voltage measurements during switching
  

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Hi Admin,

I am planning to add a relay module to the G1, and I was wondering if you have any diagrams that I could use as a reference for how to properly add it.

This correct?

GPIO12 → relay IN
GND    → relay GND
5V    → relay VCC

12V+  → COM
NO    → Siren+
Siren- → GND


Thank you for your help.

Hi,

I have an existing home automation setup and need your advice please.
I have multiple modules of relays as on the picture below, they are DPDT relays, 12v coil.
32 relays in total that I control with a device I bought online 5 years ago (Arduino with 8x4 (32) outputs), it listens to MQTT brocker on Home Assistant and basically turns the relays ON/OFF, which are controlling all my lights and a few ceiling fans/exhausts.
This device becomes unreliable and freezes from time to time so I need a replacement.
Can you please recommend a Kincony device so I can manage my existing relays.
Thank you.

Hi all,
i have some B16 currently with the 3.80 kcs firmware.
I had the need to control an output on the module 2 when a DI on module 1 is pressed.
I saw i can do it with custom protocol. I tried with UDP message, but it seems a bit loosy, in some ways each 10 clicks, 2 or 3 are lost,  alternatively i thought i could do it with http call (POST or GET).
The problem is that i don't know how to do it with the KCS firmware, i don't know if there are some preconfigured urls to let the modules relays to be switched on off or toggled.
I saw on ESPHome there are some documentations talking about this possibility, but i'm not sure these are usable on KCS firmware.

Sorry i'm a bit new and i cannot find a way to do this, but i'm pretty sure it can be done easily, and i'm just not able to do it.
Could someone please help me?

Hello,

On the E16V3, is there a way to reduce the intensity of the LEDs (throuh a modbus register setting, for example) ?

Thanks in advance,

BRs,

Laurent

Hi,

The E16V3 works great so far.

I would just like to suggest an enhancement for future versions...

The relays, when changing state, generate some noise, which is normal.
However, the added cover is metallic, and it resonates quite a lot when the relays are changing state.

May be some internal isolation could be added to reduce the noise levels ?

Thanks in advance for considering the suggestion.

Best regards,

Laurent

I have kc868-A16 and kc868-AP board, both connected with ethernet cable to the router. Both has their own IP-address.

Is it possible without using homeassistant to have an input on one board to control an output on the other board ?

With a long push on a button on input 1 from board KC868-A16, all outputs on KC868-a16 and KC868-AP has to go OFF.

Is this possible ? I cannot find an example in the description how to do this.