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+--- Forum: Scripting (https://forum.logicmachine.net/forumdisplay.php?fid=8)
+--- Thread: TCP receive with DENON Amplifier (/showthread.php?tid=5648)
TCP receive with DENON Amplifier - Hadeel - 03.10.2024
Hi!
I am trying to connect DENON Amplifier with TCP.
While I can send message successfully to DENON, I cannot receive reply from it.
With my laptop I tried TCP with telnet and confirmed that DENON gives back response to my terminal.
Following is what I have tried with resident script (interval = 0) but I got no message.
Thank you very much in advance!
Code:
if not server then
require('socket')
server = socket.udp()
server:setsockname('127.0.0.1', 5485)
end
if not tcp then
tcp = assert(socket.tcp())
local res, err = tcp:connect('192.168.0.1', 23)
if res then
return tcp
else
tcp:close()
return nil, err
end
end
function denon_receive(tcp)
res, err = tcp:receive()
if not res then
return nil, err
end
return res
end
while tcp do
res, err =denon_receive(tcp)
if res ~= nil then
log(res,err)
end
if (res == nil) then
log('no response')
end
endRE: TCP receive with DENON Amplifier - admin - 03.10.2024
receive without timeout will wait until a new line (\n) character is received.
Try this script instead:
Code:
sock = require('socket').tcp()
sock:settimeout(10)
res, err = sock:connect('192.168.0.1', 23)
if res then
while true do
res, err, partial = sock:receive()
if res then
log('receive', res)
elseif partial then
log('partial', partial)
elseif err == 'closed' then
break
end
end
else
log('connect failed', err)
end
sock:close()RE: TCP receive with DENON Amplifier - Hadeel - 07.10.2024
Thank you admin!
It did solve the issue and I can now get the reply from the amplifier!
The issue was, as you said, this amplifier replies message without a single new line (\n) character....
Thank you so much as always!