Domoticz

Posted: **Friday 04 January 2019 16:46**

Hi.

I have connected my Rotel-RSP 1068 receiver (RS232 port) to a shareable TCP-server. If I use a normal TCP client program on a Windows PC. I can read status change and write HEX command to client and then turn on / off, change volume.

Example: Turn On receiver HEX - FE 03 A1 10 4B FF

How can I do this in a script and then update received data to a text file.

I use a Raspberry PI (Stretch) for Domoticz

I found this code which connects to the TCP server

Code: Select all

  local host, port = "192.168.10.134", 10232
local socket = require("socket")
local tcp = assert(socket.tcp())

tcp:connect(host, port);

while true do
    local s, status, partial = tcp:receive()
    print(s or partial)
    if status == "closed" then break end
end
tcp:close()

If I do any chance on my receiver, it shows up in the log.
But I get a Error that the script has been running for more than 10sec
And it continues to connect to server as multiple client. So if I don't set allow client to 1 on the server, it will continue to connect as multiple client's

So I need a "If connected then stop connecting" and a way to send HEX command from dummy switches

Posted: **Saturday 05 January 2019 22:41**

Okay so I managed to send ON/OFF command

Code: Select all

IP = '192.168.10.134'
Port = '10232';
local hex = {
              "FE","03","A1","10", "4B", "FF"
            }
local binary = "";
for i, v in ipairs(hex) do
  binary = binary .. string.char(tonumber(v, 16))
end

function send(msg) 
   runcommand = "echo "..msg .."| nc "..IP.." "..Port.." "
   print (runcommand)
   os.execute(runcommand)
end
commandArray = {}
if(devicechanged['Rotel']=='On') then
     print(binary)
     send(binary)
end
end
return commandArray

I have to convert HEX into binary for it to work.
Now I have one script for ON and one for Off. Any way I can have one script for all the HEX code I want to convert? It's one HEX for Off, On, Volume Up, Volume down and changing source.

Help please

Posted: **Sunday 17 March 2019 8:47**

This is how I conrol the amp.

Create bash script for every command

Code: Select all

#!/bin/bash
echo -n -e "\xFE\x03\xA1\x10\x08\xBC" | nc 192.168.10.110 20108 &

and execute it in "run script" line in switch option.

But!
I'm struggling to get a stable respons from amp. I tried io.popen and lua socket. But it seem both of them loops over and over, and eventually, Domoticz stops working. I do get a respons and manage to update a text device. Not a stable one.

No one can help to get data from telnet / netcat in to Domoticz?

Posted: **Monday 18 March 2019 1:34**

@deve87,

Stitching Lua and bash scripts together will always give you a laggy hard to debug solution. Why don't you make a Python plugin for your hardware?

There are an examples shipped with Domoticz to connect to a device over:

a serial port (https://github.com/domoticz/domoticz/bl ... s/RAVEn.py) if you wanted to direct connect it
a TCP/IP port (https://github.com/domoticz/domoticz/bl ... Marantz.py) which you are currently doing. This example is actually telnet to an amplifier

and documentation on the wiki (https://www.domoticz.com/wiki/Developin ... hon_plugin).

If you turn on debugging in the plugin Domoticz will hex dump all messages to and from the device for you, also you can debug the plugin while its running in Domoticz (https://www.domoticz.com/wiki/Developin ... #Debugging).

Posted: **Monday 18 March 2019 8:54**

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Posted: **Monday 22 April 2019 21:49**

Thanks for replying.

I don't have enough skills to make a python plugin

I was hoping someone knew a simple way to get this telnet session in Domoticz (text device)

Domoticz

Read / Write HEX (RS232 TCP-server)

Read / Write HEX (RS232 TCP-server)

Re: Read / Write HEX (RS232 TCP-server)

Re: Read / Write HEX (RS232 TCP-server)

Re: Read / Write HEX (RS232 TCP-server)

Re: Read / Write HEX (RS232 TCP-server)

Re: Read / Write HEX (RS232 TCP-server)