rs232 - usb conversion

Discussion in 'Computing and Networks' started by jkj123, Jan 8, 2009.

  1. jkj123

    Thread Starter Member

    Nov 5, 2008
    22
    0
    Hello,I have an IR circuit which communicates between 2 pcs properly.Since rs232 cannot support power supply of 5v , I want to change to USB.Please guide me what are the changes I need to do to make it compatible to USB.attached is my curent ckt for rs232. RX and TX conects to rs232.Thanksjaison
     
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    Why don't you buy a ready one serial to usb adaptor?
     
  3. jkj123

    Thread Starter Member

    Nov 5, 2008
    22
    0
    --------------------------------------------------------------------------------Why don't you buy a ready one serial to usb adaptor?__________________I only want to know how can I modify my rs232 compatible (But TTL level, because it uses 5v) circuit to use as USB compatible.I dont want an adapter i want to design a new ckt.
     
  4. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    If your rs232 uses 5V I think it will be ok because USB uses 5V too.
     
  5. jkj123

    Thread Starter Member

    Nov 5, 2008
    22
    0
    My doubt is do we need any software to send and receive in USB as in RS-232 as hyperterminal.Or can we use hyperterminal?thanks
     
  6. leftyretro

    Active Member

    Nov 25, 2008
    394
    2
    USB serial convertors emulate standard PC COM ports via their device driver. Hyperterminal will work with them just by selecting the proper COM port address in Hyperterminal for the installed and plugged in USB serial adapter.

    Lefty
     
  7. jkj123

    Thread Starter Member

    Nov 5, 2008
    22
    0
    Thanks a lot.
     
  8. jj_alukkas

    Well-Known Member

    Jan 8, 2009
    751
    5
    You don't need a special software, but you will need to write the device drivers for that device to show up in windows. Also USB cannot be achieved without a microcontroller. The data sequence is not that simple and you will have to program that also.
     
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