■ FIGURE 20. “Move to other side of the board.”
■ FIGURE 21. Is this the final wiring?
fabricated in Europe. For an Arduino shield, it costs
$38 + shipping. Frankly, I’d like to see these guys get
rewarded for their efforts (which would also give them
incentive to improve their product), but I know there
are much less expensive options for those of us in the
US, so let’s take a look at one: SparkFun’s BatchPCB.
Of course, there is always a down side for every
choice. BatchPCB is cheaper but it takes longer to get
the board (to the US, 3-10 days for Fritzing; 3+ weeks
I chose BatchPCB to fabricate this board since it is
relatively cheap and easy to work with. Be aware though
that none of the fab houses are exactly novice friendly
and you have to eat your mistakes. Fortunately, making
mistakes and living with the consequences is one of the
best ways to learn.
PCB fab houses require files in certain specific
SMILEY’S WORKSHOP ☺
■ FIGURE 19. PCB — we have a problem.
■ FIGURE 22. The RTC shield in Viewplot.
formats. We’ll use the Gerber format supported by
Fritzing. Notice that the Fritzing ‘Export for PCB’ has an
‘Extended Gerber (RS-247X)…’ option, so let’s go with
that. This generates the following files:
Breadboard RTC 1_contour.gm1