Homebrew CAT and Programming Cable

Discussion in 'Amateur Radio News' started by M1MRB, Jul 5, 2020.

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  1. M1MRB

    M1MRB Ham Member QRZ Page

    ICQPodcast Episode 328

    In this episode, Martin M1MRB is joined by Chris Howard M0TCH, Martin Rothwell M0SGL, Ed Durrant DD5LP, Frank Howell K4FMH and Bill Barnes WC3B to discuss the latest Amateur / Ham Radio news. Colin M6BOY rounds up the news in brief and this episode’s feature is Homebrew CAT and Programming Cable


    We would like to thank our monthly and annual subscription donors for keeping the podcast advert free. To donate, please visit - http://www.icqpodcast.com/donate

    News stories include: -
    • First Ireland & Slovenia Contact made on 40 MHz Band
    • Transatlantic Emergency Call
    • UK Radio Ham Answers Call for Help
    • Ham Radio Saved My Life!
    • Presenter Article: Prominent Ham Operators Lead Major Covid-19 Pandemic Effort
    • First Annual “Dream Rig” Youth Essay Contest
    • Online Remote Invigilation Expanding
    • GB100RS Special Event
    • Wales Special Event GB0WMZ
    • NRRL form Vision and Action Working Group
    The ICQPodcast can be downloaded from http://www.icqpodcast.com

    K4FMH likes this.
  2. YD1MCD

    YD1MCD Ham Member QRZ Page

  3. ZS6EGB

    ZS6EGB Ham Member QRZ Page

    I'd like to know the pin layout of those 6 pins.
    K4FMH likes this.
  4. M1MRB

    M1MRB Ham Member QRZ Page

    Hi Emil

    These boards are usually silkscreened with labels for each of the pins. I’m sure they have a standard pinout arrangement because they are for programming microcontroller boards.

    Viewed from the top my boards are from left to right:

    DTR / RX / TX / VCC / CTS / GND

    I have used RX, TX and Ground

    DTR and CTS are for handshaking if required.

    The boards need to be TTL (5volts and Ground) not RS232 (+12volts and – 12volts)

    I hope this helps.

    73 Martin
    K4FMH and M0TCH like this.
  5. N8DC

    N8DC Ham Member QRZ Page

    A better option is to buy the cable with the FTDI chipset built in already. Its neater and all you have to do is add the 1/8 mono plug and your good to go and it can be extended with just a patch cable .
    Dave N8DC
  6. PE1PZU

    PE1PZU Ham Member QRZ Page

    I love the possibility to switch between 5v and 3v level output of these boards!
    K4FMH likes this.

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