■ FIGURE 23.
parts of the
show you how
to design and
build your own
real time clock,
but if you just
want one to
play with you
contains all the
a PCB (better
than the one
here) that we
the July issue.
Of course, you
can get it from the Nuts & Volts Webstore.
■ FIGURE A. The
Breadboard RTC 1_copper Top.gtl
Breadboard RTC 1_drill.txt
Breadboard RTC 1_maskBottom.gts
Breadboard RTC 1_maskTop.gts
Breadboard RTC 1_silkTop.gto
■ FIGURE 24. BatchPCB ready to build.
Look at the Files
You can get Viewplot for free at
www.viewplot.com. Click ‘File’ and
‘Load files,’ then navigate to the
Gerber files in your Fritzing
directory and load them.
You’ll get a couple of cryptic
windows, but just click okay on
them and you’ll see something like
what is shown in Figure 22.
Viewplot gives you the
opportunity to carefully inspect
each layer before sending it to the
fab house. I won’t go into the details
on how to use Viewplot since it is
Our board is pretty simple and
there doesn’t appear to be any
potential problems, so let’s submit
these files to BatchPCB and let them
run them through some programs
that look for common errors.