HEOS by Denon

[admin]

Telnet is used data exchange, so you need to use LuaSocket for communication. Try this code, change IP variable and see if there's any data in logs. Errors will be logged as well.

Code:

require('json')
require('socket')

IP = '192.168.1.11'
PORT = 1255

sock = socket.tcp()
sock:settimeout(5)
sock:connect(IP, PORT)
sock:send("heos://system/check_account\r\n")

res, err = sock:receive()
if res then
  dec = json.pdecode(res)
  if dec then
    log(dec)
  else
    log(res)
  end
else
  log(err)
end

sock:close()