Read RS232 send to KNX Group adress

[admin]

Try this script (resident, sleep time = 0) as is without changing anything and post what you get in Alerts tab:

Code:

if not port then
  require('serial')
  port = serial.open('/dev/RS232', { baudrate = 9600 })
  port:flush()
  line = ''
end

char = port:read(1, 1)
if char then
  if char == '\r' then
    line = line:trim()
    alert(line)
    line = ''
  else
    line = line .. char
  end
end