Process received data

[Rick]

Try this as a resident script. Edit serial.open with correct port name and settings.

Code:

if not port then
  require('serial')

  port = serial.open(...)

  function read()
    local buf = {}

    while true do
      local timeout = #buf > 0 and 0.5 or 15
      local char = port:read(1, timeout)
     
      if char then
        buf[ #buf + 1 ] = char:byte()
      else
        return buf
      end
    end
  end
end

res = read()
log(res)
if #res == 16 then
  -- process 16 bytes of data
end

Return value for read function is a table containing bytes that have been read converted to numbers. It assumes that there's at least 0.5 seconds between consecutive messages. You can edit the timeout value to suit your needs.

THANKS,I will try this.

---

Try this as a resident script. Edit serial.open with correct port name and settings.

Code:

if not port then
  require('serial')

  port = serial.open(...)

  function read()
    local buf = {}

    while true do
      local timeout = #buf > 0 and 0.5 or 15
      local char = port:read(1, timeout)
     
      if char then
        buf[ #buf + 1 ] = char:byte()
      else
        return buf
      end
    end
  end
end

res = read()
log(res)
if #res == 16 then
  -- process 16 bytes of data
end

Return value for read function is a table containing bytes that have been read converted to numbers. It assumes that there's at least 0.5 seconds between consecutive messages. You can edit the timeout value to suit your needs.

THANKS,I will try this.

In addition, I found that LM sometimes cannot be accessed through Google browser, and it is normal after waiting for about 30s. When it is not accessible, the logic function inside LM cannot be realized either.