1. Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
    Dismiss Notice

Junebug PORTB header mod

Discussion in 'Microcontrollers' started by futz, Dec 12, 2007.

  1. futz

    futz Active Member

    Joined:
    Sep 15, 2007
    Messages:
    2,043
    Likes:
    24
    Location:
    Vancouver, B.C.
    You didn't add the 5V and ground pins either! :p I wish I had. One day I'll redo it and add those.

    BTW: Pics look great. I still haven't built my light box. It's going to happen... Soon...
     
  2. Krumlink

    Krumlink New Member

    Joined:
    Aug 10, 2007
    Messages:
    2,080
    Likes:
    20
    Location:
    Michigan, USA
    I know that! That is basic stuff there buddy. I am simply saying that you might as well do some sort of off board 18F1320 so that way you won't have any limitations on what you want to do. Doing the MOD is etc, but you might as well make it a target board.
     
  3. AtomSoft

    AtomSoft Well-Known Member

    Joined:
    Feb 7, 2008
    Messages:
    5,670
    Likes:
    41
    Location:
    Brooklyn, NY US
    i left it onboard in case i use leds or other stuff on junebug
     
  4. dave

    Dave New Member

    Joined:
    Jan 12, 1997
    Messages:
    -
    Likes:
    0


     
  5. AtomSoft

    AtomSoft Well-Known Member

    Joined:
    Feb 7, 2008
    Messages:
    5,670
    Likes:
    41
    Location:
    Brooklyn, NY US

    i havent glued yet thanks for the tip will add 5+ and GND now
     
  6. 3v0

    3v0 Coop Build Coordinator Forum Supporter

    Joined:
    Jul 14, 2006
    Messages:
    9,404
    Likes:
    227
    Location:
    OKLAHOMA USA
    Good looking mod AtomSoft.

    This is just an idea.

    Change the new connector to a 2x5 so you can use a ribbon cable. They have been used on target boards for about as long as I can remember. The cables are cheap and fast to build. May be a little harder to solder and attach.

    EDIT:
    People who have ready access to custom PCBs do less moding or this sort because they often go right to custom PCBs with their design. I think that is where Krumlink was coming from. Context is everything.
     
    Last edited: Apr 9, 2008
  7. futz

    futz Active Member

    Joined:
    Sep 15, 2007
    Messages:
    2,043
    Likes:
    24
    Location:
    Vancouver, B.C.
    Now that's a good idea! :D

    I shoulda thought of that. Ah well, I have lots of single row ribbons too... And single row at the breadboard end is lots easier to deal with.
     
  8. AtomSoft

    AtomSoft Well-Known Member

    Joined:
    Feb 7, 2008
    Messages:
    5,670
    Likes:
    41
    Location:
    Brooklyn, NY US
    OK The below are the updates on portb mod... and the last image is my con3 connector for lcd old mod... Did you ever code the LCD with the PORTB mod?


    [​IMG]

    [​IMG]

    [​IMG]
     
  9. futz

    futz Active Member

    Joined:
    Sep 15, 2007
    Messages:
    2,043
    Likes:
    24
    Location:
    Vancouver, B.C.
    Yes I did. Do a search for it. Should have been posted here somewhere. Anyway, if you've already done an LCD on PortA, you'll find that converting it to use PortB is trivial.
     
  10. 3v0

    3v0 Coop Build Coordinator Forum Supporter

    Joined:
    Jul 14, 2006
    Messages:
    9,404
    Likes:
    227
    Location:
    OKLAHOMA USA
    If you have not glued them down yet change the pin layout so that + is on one end and - on the other. I helps prevent power supply shorts.
     
  11. AtomSoft

    AtomSoft Well-Known Member

    Joined:
    Feb 7, 2008
    Messages:
    5,670
    Likes:
    41
    Location:
    Brooklyn, NY US
    i The reason i asked about code is because i kind of blew my RA1 pin a while back but i got it to show some jibberish on the LCD using RB3 but could not get it to sho good stuff...
     
  12. futz

    futz Active Member

    Joined:
    Sep 15, 2007
    Messages:
    2,043
    Likes:
    24
    Location:
    Vancouver, B.C.
    When you build those perfboard breadboard adapters, what holds the pins firmly to the perfboard when you pull out? Is it just fatty solderballs on the backside? How well do they hold up to abuse?
     
  13. futz

    futz Active Member

    Joined:
    Sep 15, 2007
    Messages:
    2,043
    Likes:
    24
    Location:
    Vancouver, B.C.
    I was just going to suggest that. :p
     
  14. AtomSoft

    AtomSoft Well-Known Member

    Joined:
    Feb 7, 2008
    Messages:
    5,670
    Likes:
    41
    Location:
    Brooklyn, NY US
    3v0 that make so much sense but a little to late.. as i glued :( but ill make sure to make a note of the pinout on paper (print my image) and put it on desk to see all the time and remind myself
     
  15. AtomSoft

    AtomSoft Well-Known Member

    Joined:
    Feb 7, 2008
    Messages:
    5,670
    Likes:
    41
    Location:
    Brooklyn, NY US
    they hold up pretty well since its sort of a loop into 2 holes but i might add a small handle type wire to pull from
     
  16. AtomSoft

    AtomSoft Well-Known Member

    Joined:
    Feb 7, 2008
    Messages:
    5,670
    Likes:
    41
    Location:
    Brooklyn, NY US
    in fact since i didnt use much glue at all ill replace it 123
     
  17. futz

    futz Active Member

    Joined:
    Sep 15, 2007
    Messages:
    2,043
    Likes:
    24
    Location:
    Vancouver, B.C.
    I might start making my own sometimes. I usually use Technological Arts adapters, but sometimes I don't have one around. You saw the AVR cable trick on my site? Hacksaw a bunch of smaller adapters out of one 50-pin TechArts adapter? They're nice adapters, but sometimes it would be good to just quickly make one.
     
  18. AtomSoft

    AtomSoft Well-Known Member

    Joined:
    Feb 7, 2008
    Messages:
    5,670
    Likes:
    41
    Location:
    Brooklyn, NY US
    Here look, better?
    [​IMG]
     
  19. AtomSoft

    AtomSoft Well-Known Member

    Joined:
    Feb 7, 2008
    Messages:
    5,670
    Likes:
    41
    Location:
    Brooklyn, NY US
    yeah futz that was cool kinda like my all pin mod
     
  20. futz

    futz Active Member

    Joined:
    Sep 15, 2007
    Messages:
    2,043
    Likes:
    24
    Location:
    Vancouver, B.C.
    All pin mod? Refresh my memory. :confused:
     
  21. AtomSoft

    AtomSoft Well-Known Member

    Joined:
    Feb 7, 2008
    Messages:
    5,670
    Likes:
    41
    Location:
    Brooklyn, NY US
    Middle of page 2 in this thread
     

Share This Page