Hello all!

We are working on an art project which consists of 8 walls of server brushless fans that are separated from each other.  in each wall there are 30 12v 0.2a fans, and 18 24v 0.5 fans. 

We would like to create different cycling programs in each wall that are triggered by a message from a main controller (esp32 / RPi) 
The walls are separated from each other so we thought that going wireless should be the cleanest way to build it.

We thought to use a Kincony A6 for each wall, that reads the message through esp-now or controlled by esphome or KCS firmware (can it control several boards?). 

I'm a pretty technical guy but making first steps into home automation.. so.. 

1. Does this setup make sense or is there a more elegant solution? 
2. I have some arduino coding knowledge but tempted by the GUI offered through the other solutions - which one of them provides just what I need, including manual on/off triggering of all connected boards + program scheduling?
3. Will the relays bear 6 amps 24v each for several seconds, going on and off for half an hour year (5 days a week, 10 hours per day), or should I opt for SSRs?

Many thanks and a lovely week to come! 

Roee.

Improvement to be made:

I find it a shame that it is not specified in the documentation that to use the THT22 it must be in 5 volts.
You have to look on the forum.

In addition, it is not clean to go and get the 5v on the RF port, it is a DIY job.
An external terminal block would be more judicious.

Maybe in the future...




Board : KC868-A16

BUEN DÍA

PUEDES CONECTAR UN ARDUINO A D1 Y HACER COMUNICACIÓN SERIAL Y TENDRÁS UN EJEMPLO, TANQUES

While investigating the possibility of a hack to deal with this issue I had a look at the circuit diagram to see if there was a way to wire an output back to an input to get the necessary chaining of IFTTT rules (thanks to Kincony for publishing this, it would have been much harder trying to trace it on a multilayer board with SMDs).

In case this is useful to others, here's how things work.  In particular if you're confused about dry vs. wet contacts and so on, read on.  The circuit diagram is a bit tricky to read since there are elements scattered across it in different locations, there are groups of pullups, snubber diodes, and other things off by themselves that you have to link to the main circuit element, if I've made any mistakes please let me know.

For the inputs, one side of the optocoupler LEDs is tied to 12V and the other, which corresponds to the dry-contact inputs, has a pullup to 12V when the contact is open and gets connected to GND when the contact is closed.  So contact open = no opto LEDs lit, contact closed = opto LEDs lit.  This is how an input dry contact is turned into a wet contact.

For the outputs, there's a p-channel MOSFET that switches a voltage onto the output.  This one is a bit confusing because if you look at the board images there's a 12/24V DC input next to the output connectors rather than the expected GND.  What happens is that when the output is off there's an open circuit between the 12/24VDC input and the output connector.  When it's on the voltage from the input connector is switched onto the output connector, with the GND provided separately.  In other words you externally wire the GND to the board and whatever it is you're driving from the output, and only a single wire, the output, goes to the other device with the GND shared between them.

This possibly also means you can switch something other than 12V or 24V onto the output, the inputs on the, ah, outputs are labelled LO0 and LO1 and only appear on the output side of the output optocouplers, so you may be able to run 5V relays off them by feeding in 5V on the "12/24V DC" input.

The KC868 (almost) makes a great PLC for home automation, but one thing I can't find is any ability to chain IFTTT rules.  The rule table has "IF NUM" and "THEN NUM" entries which look like they would allow this but they're all set to zero and can't be edited.

To explain what I mean here, it's the ability to say IF <rule 1 condition met> THEN <goto rule 2>, where <rule 2> allows testing further conditions.  Let's say you want to use the device as an alarm controller, so you want to test:

Hi I am using KC868 AIO installed for my smart home project, I would like to interface 4 ws2812b led strips how can I do that? Which of the pins can be used as data pins for the same. An example circuit and Yaml also will be appreciated.

Regards
Krushi

I posted this question a few days ago but I can not see it on the forum.

I recently purchased a KC868-A16 but I can not connect to the board.
I have changed the static IP on my router to 192.168.1.1 and if I scan my network with IP Scanner I can see the the address 192.168.1.200 which I think is the KC868.
I can not see the 192.168.1.200 using the Kincony Scan List tool and I am unable to connect to the board using Firefox.

Is the board faulty or am I doing something wrong? Please help.

Not sure where to report this, but three bugs I've found with the KCS firmware, latest version (v2.2.8).

1. The LAN activity LED (green) flickers constantly even though there's no activity on the LAN.  Since this is a network activity indicator it should only be lit when there's network traffic.
   
2. The WiFi status indicator in the Network settings is wrong, it always displays enabled even if it's not.  To see this, go to Network -> WiFi, click on "enable" to make it disabled (greyed out), click Save, the system restarts and it's marked as enabled again.  The only way to tell its actual state is via a WiFi scanner to see if the KC868... AP is present or not.
   
3. Time handling is wrong, with the default time zone of UTC the board displays the current time as 17:41 but it's actually 12:41, so it's five hours out.  It's also not possible to set all time zones, it stops at UTC+12 but there are countries which are currently at UTC+13.  A better way to handle this would be to allow for DST, since UTC+13 is actually UTC+12 + DST offset of 1 hour.  Without this, it's necessary to manually change the time on the board every time a DST changeover occurs.
   

Hello everyone,

I recently got my hands on a KC868 smart controller and I am looking to integrate it with my home automation setup. I have a few questions and would appreciate any guidance from experienced users :-

Compatibility – Can the KC868 work smoothly with Home Assistant, Node-RED, or OpenHAB: ??
Setup Process – What’s the best way to configure the controller for Wi-Fi or wired connection: ??
MQTT & API – Does it support MQTT, and how can I use its API for custom automation: ??
Relay Control – Can I schedule relays to switch on/off automatically based on time or sensor inputs: ??
Best Practices – Any tips on ensuring stable performance and avoiding connection issues: ??

I would love to hear from anyone who has successfully set up their python certification KC868 system. Any tutorials or step-by-step guides would be a great help.

Looking forward to your insights !!

Thanks in advance.

With Regards,
Mitchel Johnsons

Hello

I was wondering why I am unable to use more than 1Wire temperature sensor (DS18B20)  on my KC868-A8
I have also tried to put a 4.7k resistor but I still have the same issue : only one sensor is recognized.
How can we plug more than 1 1wire sensor ?

Thank you.