Hello friends,

I am renovating an old house and would be interested in one of the two modules bellow for automating some lights, garage door, etc. 

The modules I am interested in are:
  1. ARDUINO ESP32 32 CHANNEL RELAY MODULE – KC868-A32 (I will refer to it as the "32 relays module")
  2. KC868-E16T ESP32 TUYA DIN RAIL RELAY MODULE (I will refer to it as the "16 relays module")

I have a few questions if anybody could shed some light:
    1. What are the differences between the 2 modules (except the different number of relays, the relays current rating and the lack of digital input like Ds18B20 on one of the models)?
    2. Does the 32 relay model support RF frequency control via a remote ? 
    3. Does the 32 relay model support Tuya App control and home assistant controll at the same time? 
    4. Does the 16 relay model support Tuya App control +  home assistant controll  + RF controll all at the same time? 
    5. For the 16 relay module, if I connect wired internet cable, is the Wifi Tuya antenna required to be installed in order for the tuya app part to work? (it will be placed in a location with wired internet, but very low quality wifi)
    6. In any of the 2 modules, the dry contact (digital inputs) require a momentary switch or it can be connected to a latching switch (standard wall light switch) ?
    7. What is the voltage present on the dry contact (digital inputs) (I would like if possible to connect in parallel with the wall switch, a led with resistor so I have a "night light" as a traditional light switch does have the indicator led)? 
    8. Does the 16 relay module support HMI Display ? 


P.S. I am asking for the 2 different models because for the start it may be enough 16 relays, but after further expansion/ adding new devices in the house I may require more then 16

Thank you in advance. 
      Best Regards,
                     DariusM

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Hi.

I have a 6 gang wall switch connected to KC868-Server and the issue that I'm  having is that when I connect Dx the LED is ON by default and when I turn on the relay the LED is OFF.

Cabling:
KCOM > GND
K1 > Digital Input 1
DCOM > +12v
D1 > Digital Output 1

I want LED to be ON when Relay 1 is ON... any ideas?

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We are looking for the implementation of automation in our home.
We have more than 32 inputs and outputs so we were looking at the following board: KC868-A64
What is the difference between this board with an esp32 and a board with a raspberry CM4? 
Or a board with both a raspberry and an esp.

Do traditional switches with KC868-HA work with KC868-server, KC868-A16 and KC868-D16?

Thanks.

Welcome,

I have a problem with loading bin-a 21.9,
I have loaded as at this screenshot
   
When i turn on monitor i have this information
   
I ask you for help at what i did wrong, i want to turn on this and use it.

Best Regard
Jacek

Hello
I'm very happy to be using your KC868-A6 card,
but I have a question: Is it possible to use the NVRAM memory of the RTC DS1307 to record information?
I can't use it with the RTClib Adafruit library.
Sincerely

Hi, I'm Anthony from PH and currently focused on Hospitality business resort and hostels.

I'm from Philippines and I want to start a business in automation specialty in resort management (Engineering and Maintenance)

Implementations:

1. Resort with 3km beach front

a. Automate water pumps (Done with DIY ESP32 WIFI Based sensors due to the distance) 300m distance each pumps to water tanks. We have 9 water pumps with 4 water tanks
b. Automate all lights within property (timer based) more than 300 lights
c. 5 Kitchen automation for exhaust fans and other temp monitoring
d. 20 Villas automation, I want to automate all switches for lights, AC, curtains, electric fans and main switch if not booked.
e. Power meter
f. water usage

2. Buildings

a. automate room all switches for lights, AC, curtains, electric fans and main switch if not booked.
b. automate lights in common areas
c. Power meter
d. water usage

Please contact me on viber or whatsapp +639620556065

Thank you!

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Hi there. I'm really liking your products and i will be starting a large DIY project sometime in the future so i'm creating a list of products to use. One thing i can't find are wall scene switches that would work by connecting them to digital inputs using RJ45 cable. I know you offer some but i'm aiming at something more customizable like: https://buyriteelectric.com/cdn/shop/fil...1705342406
So multiple push buttons (no touch) that could send a signal to digital inputs.
I'm from EU so i feel like my options are limited. I'm also open to suggestions if you know of another way to achieve this.

Thank you!

Hello. Can I use digital input for 24v AC signals? I want to receive signals from google nest thermostat. On the datasheet I see an optocoupler with two diodes. Does it mean that it can be used for alternating current? But it is signed as EL357. In the datasheet for the EL357 I see one diode. And can be used for DC-DC conversion. Can you help me figure it out? Thank you in advance.