User Tools

Site Tools


Sidebar

Home



Expressions


About

Functions

  abs()
  acos()
  and()
  array_clear()
  array_copy()
  array_crc16()
  array_crc32()
  array_delete()
  array_getdata16()
  array_getdata32()
  array_getdata64()
  array_getdataflt32()
  array_getdataflt64()
  array_getdata()
  array_getstring()
  array_insert()
  array_isvalid()
  array_new()
  array_printdata()
  array_printstring()
  array_remove()
  array_resize()
  array_setdata16()
  array_setdata32()
  array_setdata64()
  array_setdataflt32()
  array_setdataflt64()
  array_setdata()
  array_setstring()
  array_size()
  asin()
  atan2()
  atan()
  beep()
  bin()
  bit()
  cam_color()
  cam_grab()
  cam_load()
  cam_rect()
  ceil()
  centerex()
  center()
  chr()
  clear()
  close()
  cmdlist()
  cmd()
  cos()
  crc16()
  crc32()
  datetime()
  date()
  day()
  debug()
  dec()
  defnz()
  def()
  deg2rad()
  dlg_new()
  dlg_show()
  dlg_delete()
  dlg_addimage()
  dlg_addlabel()
  dlg_addcheckbox()
  dlg_addinput()
  eq()
  estop()
  exec()
  exists()
  exit()
  exp10()
  exp2()
  exp()
  extout1()
  extout2()
  e()
  file_append()
  file_close()
  file_delete()
  file_flush()
  file_open()
  flood()
  floor()
  for()
  getparam()
  ge()
  gt()
  hex()
  hour()
  if()
  inc()
  isnum()
  isuiready()
  jog()
  land()
  le()
  lnand()
  lnor()
  lnot()
  log10()
  log2()
  log()
  lor()
  lt()
  lxnor()
  lxor()
  match()
  max()
  md5_f()
  md5()
  midiin_channel()
  midiin_ctrl()
  midiin_note()
  midiin_prog()
  midi_ctrl()
  midi_isplaying()
  midi_noteOff()
  midi_noteOn()
  midi_play()
  midi_prog()
  midi_stop()
  millisec()
  minute()
  min()
  mist()
  mmtosetunit()
  mmtounit()
  month()
  msg()
  msgex()
  nand()
  nan()
  ne()
  nop()
  nor()
  notexists()
  not()
  open()
  or()
  outpwm()
  out()
  pause()
  pi()
  pk_analog()
  pk_digital()
  pow()
  print()
  pythr()
  py()
  rad2deg()
  rand()
  remparam()
  return()
  rgb2hue()
  rgb2lum()
  rgb2name()
  rgb2sat()
  roundup()
  round()
  rubik()
  second()
  serial_addlistener()
  serial_close()
  serial_config()
  serial_info()
  serial_list()
  serial_open()
  serial_readarray()
  serial_readdata()
  serial_readflush()
  serial_read()
  serial_remlistener()
  serial_writearray()
  serial_writedata16()
  serial_writedata32()
  serial_writedata()
  serial_writeflush()
  serial_write()
  setparam()
  settings()
  setunittomm()
  setunit()
  sha256_f()
  sha256()
  shl()
  shr()
  sign()
  sin()
  siren()
  sleep()
  sound_isplaying()
  sound_load()
  sound_play()
  sound_stop()
  sound_unload()
  spindle()
  sqrt()
  sqr()
  startcode()
  startfn()
  start()
  status()
  stop()
  strlen()
  str()
  tan()
  tomachineuv()
  tomachinexy()
  tomachine()
  toworkuv()
  toworkxy()
  towork()
  trunc()
  unittomm()
  url()
  usb_addlistener()
  usb_close()
  usb_info()
  usb_list()
  usb_open()
  usb_readarray()
  usb_readdata()
  usb_read()
  usb_remlistener()
  usb_writearray()
  usb_writedata()
  usb_write()
  xnor()
  xor()
  year()

Operators

Events

expr:functions:func-serial_addlistener

serial_addlistener()

Reads data from from serial port and saves it in array. Each time port sends new data, array data is refreshed and callback function is executed.

Syntax

serial_addlistner(port, callback , hnd, size);

Parameters

port COM port name. Use string type ; e.g. “COM10”
function Callback function name
arg1 - port
arg2 - array handle
arg3 - length
hnd Array handle
size Number of bytes to read. Special values are: (optional)
0 - serial packet size.
-1 - serial packets are read without interruption, data is read until buffer is full.
timeout Timeout value in milliseconds. After time is elapsed, COM port will not read any incoming data. (optional)
Return Value Data size - integer number

Examples

hnd = array_new();
serial_addlistener("COM10", "#On_Serial_Event", hnd, 8); 
 
#On_Serial_Event
result = array_getdata(.arg2,8);

result:

255

See also

expr/functions/func-serial_addlistener.txt · Last modified: 2023/02/15 15:06 by 127.0.0.1

Page Tools