ELK M1 Alarm panel

[admin]

Here's a basic SSL connection example:

Code:

socket = require('socket')
ssl = require('ssl')

ip = '192.168.1.1'
port = 2601

sock = socket.tcp()
sock:settimeout(5)
sock:connect(ip, port)
sock = ssl.wrap(sock, 'tlsv1')
sock:dohandshake()

Checksum calculation:

Code:

function checksum(str)
  local sum = 0
  for i = 1, #str do
    sum = (sum + str:byte(i)) % 256
  end
  return string.format('%02X', 256 - sum)
end