Board for window contact sensors

[threadstone]

Dear Kincony-Team,
 
I'm currently looking for a suitable circuit board to realize a new project. At my search I found your website and some boards that could be the right one (for example the KC868-AI) but I’m not sure which one is the right one. Can you possibly tell me if the KC868-AI is the right one respectively which of your boards would be suitable?
 
I have 13 windows in my house and every window has an sensor for the status (open, closed and tilted). I want to integrate these sensors in my already existing Home Assistant installation. I think the integration via ESP could be one solution.
Here the information about the sensors:
 

• 7-wire cable
  • 2 wires for the sabotage loop / sabotage line
    
  • 2 wires for the signaling contact (generally open/closed)
    
  • 3 wires for the open/tilted state (common "ground")
    

 
According to the instructions, there are also the following technical data:

• General:
  • Switch voltage max. 48V DC
    
  • Contact resistance max. 150mOhm
    
• Surveillance:
  • Switching current max. 0.5A
    
  • Transport current max. 1.0A
    
  • Switch performance max. 10W pure ohmic load
    
• or for the tilt status query:
  • Switching current max. 0.25A
    
  • Transport current max. 1.2A
    
  • Switch performance max. 3W pure ohmic load
    

 
Attached you can find an extrude of the installation instructions.
 
It would be nice if you could tell me if the KC868-AI is suitable. If it is not, which of your boards would be suitable? Is there eventually already a program / yaml for ESP or Home Assistant is existing?
 
Thank you in advance.

[admin]

KC868-AI have 48 channel digital input ports. 0V means ON, 12-24v DC means OFF. so you need to confirm your switch wire's voltage level. if only use by dry contact signal, it's no problem.

here is yaml file for KC868-AI , it can directly use in home assistant:
https://www.kincony.com/forum/showthread.php?tid=2017

[threadstone]

Sorry, I'm no electrician. So this is not so easy for me.
Is it possible to use KCOM of the KC848-AI for the wire to the sensor and the inputs for the wire from sensor to board? Or did I need an separate power source instead of KCOM?
Like it is written here:
https://www.kincony.com/forum/showthread.php?tid=3771

[admin]

most window sensor have two wires, not need power supply. two wire connect to KCOM and INPUT for KC868-AI, very easy.

[threadstone]

most window sensor have two wires, not need power supply. two wire connect to KCOM and INPUT for KC868-AI, very easy.

Thank you for your confirmation. I think I will give it a try and order the board.

But two last Questions: Can you give me information what is present at KCOM (voltage / current)? And do you have an manual for the board?

[admin]

ok

[threadstone]

Can you give me information what is present at KCOM (voltage / current)? And do you have an manual for the board?

[admin]

KCOM just GND. digital input short with GND means "trigger".
here is our firmware details: https://www.kincony.com/guide
i think you can using KC868-AI board, when have questions post at here is better do understand.

[threadstone]

@admin

Now I want to install the board and integrate it in my Home Assistant. The problem is, ESP32 is a complete new world for me and I'm not sure what the next steps are / the right order is.

Is the following doing correct?

1) Connect the Board with the PC
2) Install the sketch from https://www.kincony.com/forum/showthread.php?tid=2017 via https://web.esphome.io/
    -> Before I need to modify the Home Assistent API because they have changed it. But where do I get the API-Key?
    -> Where do I set my Wifi access data?
3) Add the board via ESP integration to Home Assistant

Thank you in advance!

[admin]

1. install home assistant on your server.
2. install ESPHome addon on home assistant
3. create controller in ESPHome, just copy our yaml file
4. download firmware by USB-Serial port.
here is video tour for ESPHome beginner: https://www.youtube.com/playlist?list=PL...w6S3y9YM2V