<![CDATA[Smart Home Automation Forum - KinCony Server-Mini / Server-16 Raspberry Pi4 relay module]]> https://www.kincony.com/forum/ Sun, 08 Nov 2026 08:48:49 +0000 MyBB <![CDATA[It looks like it's broken.]]> https://www.kincony.com/forum/showthread.php?tid=9857 Tue, 06 Oct 2026 09:39:02 +0800 abc123]]> https://www.kincony.com/forum/showthread.php?tid=9857 <![CDATA[Getting inconsistent/wrong sensor readings from N20 over RS485 Modbus RTU]]> https://www.kincony.com/forum/showthread.php?tid=9850 Thu, 01 Oct 2026 14:27:51 +0800 Abubakar506]]> https://www.kincony.com/forum/showthread.php?tid=9850
Setup: N20 connected via RS485 to a Server16 running Home Assistant, using the Modbus RTU integration (baud 38400, matching the N20 Modbus protocol spec).

Issue: Reading the temperature register (offset 64, float, Chip 1) gives inconsistent results. N20's own display shows 33.7°C, but Home Assistant reads back 24.38°C — sometimes correct, sometimes way off (even negative values occasionally). Current/power/energy readings on the integer registers seem fine, it's mainly the float-type registers (temperature, power factor) that come back wrong or inconsistent.

I've already tried:
- Different byte-swap orders (byte swap gives correct values sometimes, but not consistently)
- Re-tightening A/B terminals

Questions:
1. Is there a known/confirmed byte order for the float registers (temp, PF) on N20? The protocol doc mentions "CDBA format" — is there a simpler way to interpret this?
2. Any guidance on termination/grounding recommendations for the RS485 bus on N20 and Server16 specifically?
3. Is there a minimum recommended polling interval to avoid read collisions?

Any help appreciated — thanks!

.png   2.PNG (Size: 42.79 KB / Downloads: 91)

.txt   code.txt (Size: 422 bytes / Downloads: 63) ]]>
Setup: N20 connected via RS485 to a Server16 running Home Assistant, using the Modbus RTU integration (baud 38400, matching the N20 Modbus protocol spec).

Issue: Reading the temperature register (offset 64, float, Chip 1) gives inconsistent results. N20's own display shows 33.7°C, but Home Assistant reads back 24.38°C — sometimes correct, sometimes way off (even negative values occasionally). Current/power/energy readings on the integer registers seem fine, it's mainly the float-type registers (temperature, power factor) that come back wrong or inconsistent.

I've already tried:
- Different byte-swap orders (byte swap gives correct values sometimes, but not consistently)
- Re-tightening A/B terminals

Questions:
1. Is there a known/confirmed byte order for the float registers (temp, PF) on N20? The protocol doc mentions "CDBA format" — is there a simpler way to interpret this?
2. Any guidance on termination/grounding recommendations for the RS485 bus on N20 and Server16 specifically?
3. Is there a minimum recommended polling interval to avoid read collisions?

Any help appreciated — thanks!

.png   2.PNG (Size: 42.79 KB / Downloads: 91)

.txt   code.txt (Size: 422 bytes / Downloads: 63) ]]> <![CDATA[Server 16 issues]]> https://www.kincony.com/forum/showthread.php?tid=8865 Wed, 31 Dec 2025 19:15:37 +0800 podlak]]> https://www.kincony.com/forum/showthread.php?tid=8865 I started working over new home automation project and I bought Server 16 with raspberry pi & nodered. Board is working fine with rs485 sensors, but I'm planning to use relays to control electric circuits and I have two major difficulties :
1) by default I want to have circuits off (NC), I changed settings of all relays in nodered to invert switches, but when board starts it triggers all relays for a moment ON and after moment all goes to OFF. It means that all connected electric equipment will start for a less a second - this is very unwanted behaviour, how to avoid that?
2) I'm planning to use digital inputs to control relays with momentary buttons, but input seams to be connected with relays and input has to be shorted with GND all the time, how to change that, so relay will be toggled wen button is pushed for a moment?  I don't want to use bistable buttons, as relay will be connected with nodered and homeassistant in parallel and wall buttons will have different state than circuit 

Beet regards 
Podlak]]> I started working over new home automation project and I bought Server 16 with raspberry pi & nodered. Board is working fine with rs485 sensors, but I'm planning to use relays to control electric circuits and I have two major difficulties :
1) by default I want to have circuits off (NC), I changed settings of all relays in nodered to invert switches, but when board starts it triggers all relays for a moment ON and after moment all goes to OFF. It means that all connected electric equipment will start for a less a second - this is very unwanted behaviour, how to avoid that?
2) I'm planning to use digital inputs to control relays with momentary buttons, but input seams to be connected with relays and input has to be shorted with GND all the time, how to change that, so relay will be toggled wen button is pushed for a moment?  I don't want to use bistable buttons, as relay will be connected with nodered and homeassistant in parallel and wall buttons will have different state than circuit 

Beet regards 
Podlak]]> <![CDATA[Connection Internet]]> https://www.kincony.com/forum/showthread.php?tid=8680 Sun, 26 Oct 2025 18:51:42 +0800 shochif]]> https://www.kincony.com/forum/showthread.php?tid=8680 <![CDATA[add webcam]]> https://www.kincony.com/forum/showthread.php?tid=8630 Tue, 07 Oct 2025 11:30:12 +0800 shochif]]> https://www.kincony.com/forum/showthread.php?tid=8630 if can what type of webcam must i use cause when i try using obsbot camera on hardware not detected]]> if can what type of webcam must i use cause when i try using obsbot camera on hardware not detected]]> <![CDATA[Connect RS485 KC868-HAv2 to Server Mini]]> https://www.kincony.com/forum/showthread.php?tid=8448 Wed, 13 Aug 2025 22:05:15 +0800 Mijoo]]> https://www.kincony.com/forum/showthread.php?tid=8448 Help: Connect RS485 I/O modules to the Raspberry Pi 4 Relay Board (Server Mini) + Home Assistant OS


Hardware

Goal
  1. Daisy-chain several KinCony RS485 I/O modules to the Server Mini’s onboard RS485.
  2. Control/monitor them from Home Assistant OS (HA Modbus if possible).
  3. Best-practice for addressing many modules (bulk provisioning) without connecting a laptop each time.




What I’ve found / tried so far
  • The board exposes RS485 via the Pi’s UART (I see pins marked GPIO14 = TX, GPIO15 = RX on documentation/pins).
  • On Home Assistant OS, I cannot just edit /boot/config.txt like on Raspberry Pi OS, so I’m not sure about the correct way to enable the UART for the onboard RS485 under HA OS.
  • I tried using generic HA Modbus config but I’m not 100% sure about the device path (e.g. /dev/ttyAMA0, /dev/ttyS0, or /dev/serial/by-id/...) and serial parameters (baud, parity, stop bits) for KinCony’s RS485 port on this board.




Questions

  1. Wiring
    • Do I need a 120 Ω termination resistor at the last device? Are there built-in bias resistors on the Server Mini’s RS485 transceiver, or should I add my own?
    • Any max bus length / topology recommendations? (I’ll use daisy chain, not star.)

  2. Protocol & parameters
    • Do those RS485 I/O modules speak Modbus RTU out of the box? If yes, what are the default serial parameters (baud, parity, stopbits) and the register map (coils/inputs/holding)?
    • If it’s not Modbus RTU by default, is there a Modbus firmware or config mode I should use?

  3. Addressing multiple modules
    • How do I set unique addresses for each module? DIP switches? Command?
    • For bulk installs, is there a recommended workflow to assign addresses without hooking up each module to a PC? (Auto-addressing, scan/assign tool, etc.)

  4. Home Assistant OS specifics
    • On this KinCony board with HA OS, what is the correct serial device path for the onboard RS485 (e.g., /dev/ttyAMA0)?
    • What is the recommended way to enable UART on HA OS for this board (since /boot/config.txt is read-only under HA OS)? Any KinCony-specific steps or an add-on?
    • A minimal, known-good Home Assistant modbus: YAML example for one RS485 I/O module would be super helpful.

  5. Examples
    • Could you share example register addresses (coils/inputs) for:
      • Reading digital inputs from a KinCony RS485 I/O module
      • Controlling a relay output (if the chosen module has relays)
    • Any sample configs for more than one module on the same bus?

]]> Help: Connect RS485 I/O modules to the Raspberry Pi 4 Relay Board (Server Mini) + Home Assistant OS


Hardware

Goal
  1. Daisy-chain several KinCony RS485 I/O modules to the Server Mini’s onboard RS485.
  2. Control/monitor them from Home Assistant OS (HA Modbus if possible).
  3. Best-practice for addressing many modules (bulk provisioning) without connecting a laptop each time.




What I’ve found / tried so far
  • The board exposes RS485 via the Pi’s UART (I see pins marked GPIO14 = TX, GPIO15 = RX on documentation/pins).
  • On Home Assistant OS, I cannot just edit /boot/config.txt like on Raspberry Pi OS, so I’m not sure about the correct way to enable the UART for the onboard RS485 under HA OS.
  • I tried using generic HA Modbus config but I’m not 100% sure about the device path (e.g. /dev/ttyAMA0, /dev/ttyS0, or /dev/serial/by-id/...) and serial parameters (baud, parity, stop bits) for KinCony’s RS485 port on this board.




Questions

  1. Wiring
    • Do I need a 120 Ω termination resistor at the last device? Are there built-in bias resistors on the Server Mini’s RS485 transceiver, or should I add my own?
    • Any max bus length / topology recommendations? (I’ll use daisy chain, not star.)

  2. Protocol & parameters
    • Do those RS485 I/O modules speak Modbus RTU out of the box? If yes, what are the default serial parameters (baud, parity, stopbits) and the register map (coils/inputs/holding)?
    • If it’s not Modbus RTU by default, is there a Modbus firmware or config mode I should use?

  3. Addressing multiple modules
    • How do I set unique addresses for each module? DIP switches? Command?
    • For bulk installs, is there a recommended workflow to assign addresses without hooking up each module to a PC? (Auto-addressing, scan/assign tool, etc.)

  4. Home Assistant OS specifics
    • On this KinCony board with HA OS, what is the correct serial device path for the onboard RS485 (e.g., /dev/ttyAMA0)?
    • What is the recommended way to enable UART on HA OS for this board (since /boot/config.txt is read-only under HA OS)? Any KinCony-specific steps or an add-on?
    • A minimal, known-good Home Assistant modbus: YAML example for one RS485 I/O module would be super helpful.

  5. Examples
    • Could you share example register addresses (coils/inputs) for:
      • Reading digital inputs from a KinCony RS485 I/O module
      • Controlling a relay output (if the chosen module has relays)
    • Any sample configs for more than one module on the same bus?

]]> <![CDATA[Server-Mini and RS485 - IO Module – KC868-HAv2]]> https://www.kincony.com/forum/showthread.php?tid=8447 Wed, 13 Aug 2025 21:44:50 +0800 Mijoo]]> https://www.kincony.com/forum/showthread.php?tid=8447 Help: Connect RS485 I/O modules to the Raspberry Pi 4 Relay Board (Server Mini) + Home Assistant OS


Hardware


Goal

  1. Daisy-chain several KinCony RS485 I/O modules to the Server Mini’s onboard RS485.
  2. Control/monitor them from Home Assistant OS (HA Modbus if possible).
  3. Best-practice for addressing many modules (bulk provisioning) without connecting a laptop each time.




What I’ve found / tried so far

  • The board exposes RS485 via the Pi’s UART (I see pins marked GPIO14 = TX, GPIO15 = RX on documentation/pins).
  • On Home Assistant OS, I cannot just edit /boot/config.txt like on Raspberry Pi OS, so I’m not sure about the correct way to enable the UART for the onboard RS485 under HA OS.
  • I tried using generic HA Modbus config but I’m not 100% sure about the device path (e.g. /dev/ttyAMA0, /dev/ttyS0, or /dev/serial/by-id/...) and serial parameters (baud, parity, stop bits) for KinCony’s RS485 port on this board.
  • I previously attempted the old rpi_gpio integration for direct GPIO, but HA OS doesn’t include that — so I want to use RS485/Modbus properly instead.
]]> Help: Connect RS485 I/O modules to the Raspberry Pi 4 Relay Board (Server Mini) + Home Assistant OS


Hardware


Goal

  1. Daisy-chain several KinCony RS485 I/O modules to the Server Mini’s onboard RS485.
  2. Control/monitor them from Home Assistant OS (HA Modbus if possible).
  3. Best-practice for addressing many modules (bulk provisioning) without connecting a laptop each time.




What I’ve found / tried so far

  • The board exposes RS485 via the Pi’s UART (I see pins marked GPIO14 = TX, GPIO15 = RX on documentation/pins).
  • On Home Assistant OS, I cannot just edit /boot/config.txt like on Raspberry Pi OS, so I’m not sure about the correct way to enable the UART for the onboard RS485 under HA OS.
  • I tried using generic HA Modbus config but I’m not 100% sure about the device path (e.g. /dev/ttyAMA0, /dev/ttyS0, or /dev/serial/by-id/...) and serial parameters (baud, parity, stop bits) for KinCony’s RS485 port on this board.
  • I previously attempted the old rpi_gpio integration for direct GPIO, but HA OS doesn’t include that — so I want to use RS485/Modbus properly instead.
]]> <![CDATA[Kincony Server-16 new install]]> https://www.kincony.com/forum/showthread.php?tid=8443 Wed, 13 Aug 2025 11:30:43 +0800 shochif]]> https://www.kincony.com/forum/showthread.php?tid=8443 but i cant connect, and when i check my connection to server 16 like this
how i can fix this ?

.jpg   RTO.jpg (Size: 208.02 KB / Downloads: 751) ]]> but i cant connect, and when i check my connection to server 16 like this
how i can fix this ?

.jpg   RTO.jpg (Size: 208.02 KB / Downloads: 751) ]]> <![CDATA[Kincony Server-Mini]]> https://www.kincony.com/forum/showthread.php?tid=8340 Thu, 24 Jul 2025 19:36:10 +0800 mst-28816]]> https://www.kincony.com/forum/showthread.php?tid=8340 please send us a help to control these ports. Will it work with udp ?

Thanks for short reply with solution to control these ports.]]> please send us a help to control these ports. Will it work with udp ?

Thanks for short reply with solution to control these ports.]]> <![CDATA[MCP23017 interrupt pin]]> https://www.kincony.com/forum/showthread.php?tid=8311 Wed, 09 Jul 2025 22:03:20 +0800 rboers]]> https://www.kincony.com/forum/showthread.php?tid=8311 <![CDATA[CM5 compatible?]]> https://www.kincony.com/forum/showthread.php?tid=8309 Wed, 09 Jul 2025 15:56:39 +0800 rboers]]> https://www.kincony.com/forum/showthread.php?tid=8309 Can a CM5 module be used in the Server-16 server?
If not, will there be a CM5 compatible Server-16 in the near future?]]> Can a CM5 module be used in the Server-16 server?
If not, will there be a CM5 compatible Server-16 in the near future?]]> <![CDATA[Kincony Server-16 new install]]> https://www.kincony.com/forum/showthread.php?tid=8296 Fri, 04 Jul 2025 12:22:28 +0800 shochif]]> https://www.kincony.com/forum/showthread.php?tid=8296 i try to type http://homeassistant.local:8123/ & http://homeassistant:8123/ nothing happen already refresh 30 a hours already check the connection
already check the tutorials https://youtu.be/oEjIZg6C_-Y stop at 9 minutes videos
please help me

.png   error web.png (Size: 28.72 KB / Downloads: 662)

.png   network.png (Size: 57.1 KB / Downloads: 572) ]]> i try to type http://homeassistant.local:8123/ & http://homeassistant:8123/ nothing happen already refresh 30 a hours already check the connection
already check the tutorials https://youtu.be/oEjIZg6C_-Y stop at 9 minutes videos
please help me

.png   error web.png (Size: 28.72 KB / Downloads: 662)

.png   network.png (Size: 57.1 KB / Downloads: 572) ]]> <![CDATA[Kincony Server-16]]> https://www.kincony.com/forum/showthread.php?tid=8295 Fri, 04 Jul 2025 11:50:14 +0800 shochif]]> https://www.kincony.com/forum/showthread.php?tid=8295 i want to install home assistant using LAN connector but when i type http://homeassistant:8123/ nothing happen
my ethernet already connected but still unidentified network
can someone help me?

.png   error.png (Size: 69.89 KB / Downloads: 783) ]]> i want to install home assistant using LAN connector but when i type http://homeassistant:8123/ nothing happen
my ethernet already connected but still unidentified network
can someone help me?

.png   error.png (Size: 69.89 KB / Downloads: 783) ]]> <![CDATA[Python code for digital inputs]]> https://www.kincony.com/forum/showthread.php?tid=7595 Mon, 10 Feb 2025 03:40:57 +0800 pietpoerrie]]> https://www.kincony.com/forum/showthread.php?tid=7595
Is there a python code example for reading the digital inputs on the kincony server 16?

Thanks in advance,
Pieter]]>
Is there a python code example for reading the digital inputs on the kincony server 16?

Thanks in advance,
Pieter]]> <![CDATA[Kincony Server 16 User Manual]]> https://www.kincony.com/forum/showthread.php?tid=7120 Wed, 27 Nov 2024 13:12:18 +0800 electronics engineer]]> https://www.kincony.com/forum/showthread.php?tid=7120