Junebug PORTB header mod

[futz]

Hey futz look.. I liked your portb mod so i made one

Will hot glue soon! But try to make it small amount

You didn't add the 5V and ground pins either! 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...

 

[Krumlink]

The portb mod only brings out the I/O pins, the ICSP is not affected. It brings out RB0 thru RB5.

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.

 

[AtomSoft]

i left it onboard in case i use leds or other stuff on junebug

 

[AtomSoft]

i havent glued yet thanks for the tip will add 5+ and GND now

 

[3v0]

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.

 

[futz]

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.

Now that's a good idea!

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.

 

[AtomSoft]

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?


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[futz]

Did you ever code the LCD with the PORTB mod?

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.

 

[3v0]

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.

 

[AtomSoft]

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...

 

[futz]

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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?

 

[futz]

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.

I was just going to suggest that.

 

[AtomSoft]

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

 

[AtomSoft]

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

 

[AtomSoft]

in fact since i didnt use much glue at all ill replace it 123

 

[futz]

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

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.

 

[AtomSoft]

Here look, better?
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[AtomSoft]

yeah futz that was cool kinda like my all pin mod

 

[futz]

yeah futz that was cool kinda like my all pin mod

All pin mod? Refresh my memory.

 

[AtomSoft]

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