Ara

Thank you @mLipok my problem was timing, I was reading it too late

Hi There, I'm trying to read from my Com port but I can't. I'm able to send it successfully and i know that my com port gets the characters (tried it with TeraTerm) but when i try to read the COM port with Auto it it just gives me 0. Following is my code to read the Com port Func FUNC_021_Read_From_Com($i_com_num) Local $ports = _ComListPorts() Local $ports_arry = _ComListPorts() ;an array with com ports Local $s_ComPort='COM' & $i_com_num ;a com port, e.g. COM1 Local $s_Def='baud=57600 data=8 parity=n stop=1' Local $h_ComPort ;serial port handle Local $s_Info = 'cbOutQue' Local $i_num_chars = 16 Local $b_rtn Local $i_Length Local $i_comp Local $s_Readstr $h_ComPort = _ComOpenPort($s_ComPort & $s_Def) if ($h_ComPort <> 0) Then __PurgeComm($h_ComPort, '0x000F') __ComClearCommError($h_ComPort,$s_Info) Sleep(5000) $s_Readstr = _ComReadString($h_ComPort, 26, 2) MsgBox($MB_OK," Programming Serial Number!"," This is What I Get: " & $s_Readstr) ; I Get 0 _ComClosePort($h_ComPort) EndIf EndFunc Any suggestion is appreciated Thank you