FIGURE 3. Blinking LED.
FIGURE 4. Freetronics
Eleven with DMD adapter.
to run on your Arduino, and the
driver is necessary to get your
computer to recognize the Eleven so
that you can download the
programs on to it. An included USB
cable provides the power and data
connection to your PC.
The Eleven comes with a
preloaded “Blink” program (they are
called sketches). So, once everything
is installed correctly and you connect
the Eleven to your computer, you
can see that it’s working correctly
with a blue LED power indication
and a red LED that blinks on and off
You can then quickly test the
ability to upload a new sketch by
following the clear instructions to
load the Blink sketch that comes as
an example with the IDE, and then
play around with changing values in
the sketch to make the LED flash on
and then off at various speeds. I
found this was all pretty easy and
was feeling pretty confident when I
moved on to attach the DMD.
FIGURE 5. Bright LEDs.
44 SERVO 02.2013