How to add RF light switch with KC868-G to SmartHome app?

Hello, I bought the component to connect Alexa to my Home Domotic. Does it is possible to change the luminosity of the light? In Sinric or Alexa application I can change the luminosity, but from Alexa serial interface I read only RELAY-SET-255,2,1 (for ON) or RELAY-SET-255,2,0 (for OFF).
The KC868-Hx Alexa Voice Module does not change the "value", for example from 255 to 125 for 50% of luminosity. 
How it is possible to send the "value" to the serial port?

Thanks in advance

Massimo

Field Hold time: 2S in execution wait 20S, mean 10x than you set.

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KC868-H32 relay controller PC software add "auto off" option. If enable this option, when you press "ON" button, will auto OFF after 2 seconds.
update version V20201119
download link: https://www.kincony.com/download/PC-KC868-H32B.zip

KC868 relay controller integrate to domoticz soon making the plugin file. It will support by KC868-H32,KC868-H16,KC868-H8,KC868-H4,KC868-H2 all relay controller.

we have recorded many videos will help you.

1. How to wire? you need to know the hardware interface and diagram.
https://youtu.be/_EbfwEPhMUo

2. Config network setting,maybe you will use ethernet or WiFi.The default setting is "DHCP" by "UDP" work mode.
https://youtu.be/X3FSWfuWImg

3. How to install mobile phone app for remote control by cloud server.
https://youtu.be/FyPVUguU_h8

4. How to install mobile phone app for local control without internet.
https://youtu.be/xdWlEuIxOhA

5. How to use PC software for remote control by cloud server.
https://youtu.be/r-DN_30dNrg

6. How to use PC software for local control without internet
https://youtu.be/I2twUvE_C4o

7. How to use wall switch panel and wireless remoter for manual control
https://youtu.be/Qknel82vPOI

8. How to use voice control by Amazon Alexa speaker
https://youtu.be/t62vhuKnsr8

9. How to use voice control by Google home speaker
https://youtu.be/ShLsjd22oiU

10. If you already have one user account of mobile phone, but more people want to use.Then you can use grant authorization function to share deivce.(Note: one controller only can add to one phone account)
https://youtu.be/j2pb9JPJgZA

11. If you want to relay controller's input port trigger output. Such as input 1 -> relay1 ON,relay2 OFF.
  step-1: create the scene for relay output actions.  https://youtu.be/XzfLEUbYxI0
  step-2: set input port trigger with which scene you have created.(Note:when you press relay for ON/OFF,must press the relay name text position when save)  https://youtu.be/-JuWCZC39rY

12. If you want to relay controller's input port trigger for a alarm message send to all user.
https://youtu.be/-JuWCZC39rY

Somebody try register new account on existing controller, where I already registerd. After open app. how they can see my controller, and other definitions.

Do you plan make automatic refreshing switch states on mobile and PC application. When both application running and change for example relay over mobile it not automatic refresh on PC display. I see it can manually 'refresh' but it should be better if all application synchronized every some seconds automatically.

I try to development software for connect and turn ON/OFF relay
I can connect with Local network 
but I need to connect outside network 
I have public IP server for install or config but I don't know how to config
And I develop Software with Java language



when I connect with Local network I config at attachments

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We have written a development and debug software tool for KC868-Hx smart relay controller. There are two test versions available:
[b]1.TCP Server Version tool:[/b]
Debugger download:
KC868Hx-Debug-Server (use in Local LAN)
Source code download:
KC868-Hx Debug-Server local LAN control demo source code.rar (C++Builder 10.2.3)
[b]2.TCP Client Version tool:[/b]
Debugger download:
KC868Hx-Debug-Client (use in Local LAN)
Source code download:
KC868-Hx Debug-Client local LAN control demo source code.rar (C++Builder 10.2.3)
KinCony GitHub for sample demo source code download
KC868-Hx Communication protocol:
KC868-H2/4/8/16/32 Comminucation Protocol for development.pdf
KC868-Hx Communication protocol guide:
Anlysis KC868-Hx Controller Communication Protocol

[b]How to choose debugging tools and their differences?[/b]

A.TCP Server Version tool:


In the VirCom network configuration tool, set the KC868-Hx controller  “Work Mode” to “TCP Client”. At this time, the PC debugger is the server, and the KC868-Hx controller is the client. The server is in “Listening” state. After the controller is powered on, it will actively establish a socket communication connection with the server to realize data interaction. In the debugger, we demonstrate how to control the single relay switch, how to control “ALL ON”, “ALL OFF” with one button, how to control the specified relay switch, how to read the current state of one relay switch, how to read the current state of all relay switches at one time, and how to read the dry node sensor state connected at the input port of controller. The bottom left of the window is the content of “send buffer”; the bottom right of the window is the content of “receive buffer”. Before use, set the “port” value, then click the “Listen” button to listen and wait for the client controller to connection. After the connection is successful, the IP address and port number of the connected client device will be displayed in the software status bar.

B.TCP Client Version tool:


In the VirCom network configuration tool, set the KC868-Hx controller  “Work Mode” to “TCP Server”. At this time, the KC868-Hx controller is the server, and the PC debugger is the client. The controller is in “Listening” state. After click “Connect” button on PC debugger, it will establish a socket communication connection with the controller to realize data interaction. In the debugger, we demonstrate how to control the single relay switch, how to control “ALL ON”, “ALL OFF” with one button, how to control the specified relay switch, how to read the current state of one relay switch, how to read the current state of all relay switches at one time, and how to read the dry node sensor state connected at the input port of controller. The bottom left of the window is the content of “send buffer”; the bottom right of the window is the content of “receive buffer”. Before use, set the server’s “ip” and “port” , then click the “Connect” button to connection with controller.

[b]If you need to build a web server to control the devices with web pages, you can do it in the following ways:[/b]


Build a web server. Server establishes a communication connection with the controller through the socket to realize the control of the relay switch. For user through PHP, Java, HTML and other web pages to log in, so as to realize the online control of the relay switch by the website.