The mini breadboard has 170 tie points and no power
bus. In my opinion, it has a problem — it is too darn dark
and hardly stands out against the background. So, I decided
to lighten it up a bit and in so doing, show yet another
example of how to modify a part by directly editing the
.svg (scaled vector graphic) file. I opened the file Fritzing\
parts\svg\core\breadboard\ miniBreadboard.svg in
Programmer's NotePad and changed the fill value from
#D9D9D9 to #F9F9F9:
<g id="background"> <rect x="0" fill="#D9D9D9" width="129.839" height="100.914"/>
<g id="background"> <rect x="0" fill="#F9F9F9" width="129.839" height="100.914"/>
This gives us the lighter image shown in Figure 6. This
is — of course — a matter of personal preference, but I
; FIGURE 6. Piezo .svg drawing.
prefer the lighter version, so that's what I'll use. This bit of
file editing is deceptively easy though, and you'll need to
be very careful when trying to figure out what other
sections of the file to do.
I suggest making a backup copy first; then for each
little change you make, save the change and open the
.svg file in a browser to see what you really did (drag
and drop, then refresh to see the changes). You can learn
a lot this way. You might also want to take a look at
; FIGURE 7. Arduino proto shield without
We've already looked
at Inkscape and decided
to let you learn how to
use that excellent
program on your own. It
isn't easy (none of the
vector graphics programs
are easy), but it is free.
If you want to make
illustrations like the ones
You can learn more about generating your own
custom PCB image at http://fritzing.org/learning/
You can get this Fritzing part at the article link for
this month's Workshop.
To use this in Fritzing, you add the shield to the
breadboard view, then right-click the board, and
select 'Raise and Lower' \ 'Send Backward as shown
in Figure 8. Then, slide the board under the mini
breadboard as shown in Figure 9.
; FIGURE 9. Proto shield with breadboard.
; FIGURE 8. Send board to back.