Contents tagged with Netduino
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Etching sketches with a Netduino Go
Netduino Go
is designed for much more than toy projects, but one has
to recognize that toy projects are fun and also great
learning experiences. Today, I want to take you through
the process of reproducing the behavior of a famous toy
that you will surely recognize. That toy, that has
helped many of us realize what poor motor skills we
possess, has two knobs that control the horizontal and
vertical coordinates of a pen that draws into the dust
on the back of a simple screen. It’s a great mechanical
device that is part of western culture.
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Electronics for developers with Netduino Go
Wouldn’t it be great if you could build your own
stuff? Microcontrollers let you do that, but they
usually require dealing with a lot of complexity and
unknowns. If you’re a software developer, chances are
you don’t really know how to use a capacitor, or how a
transistor works, even though it is at the heart of all
computers.
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Building a simple Fritzing component
This is me shaving a yak. Shaving the yak, if you
don't know, is what you do when a seemingly simple task
necessitates many recursive and unforeseen sub-tasks in
order to be carried out.
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Authoring SVG with a text editor
SVG
definitely is an increasingly interesting skill,
especially as it's making its way into HTML 5 as an
officially allowed grammar inside of HTML documents.
Most SVG is authored through some kind of tool, and it's
absolutely the way to go for artistic drawings. I used
Inkscape (open
source) and
Expression Design
in the past for that (I can't afford
Illustrator), and I've been happy with the results (to your right
and left).
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Driving a LED matrix from a Netduino one more time: The Right Way
In previous posts, we've seen two ways one can drive a
small LED matrix from a
Netduino.
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Mandatory look back at 2010
Yeah, it's one of those posts, sorry.
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Displaying an image on a LED matrix with a Netduino
In
the previous post, we’ve been flipping bits manually on three ports of
the Netduino to simulate the data, clock and latch pins
that a shift register expected. We did all that in order
to control one line of a LED matrix and create a simple
Knight Rider effect.
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Doh! Use the right constants when you talk to a Netduino
When programming a Netduino microcontroller, you are
going to use constants from the
SecretLabs.NETMF.Hardware.Netduino namespace. In
particular, there are constants defined for each of the
microcontroller’s output and input ports, enabling you
to write for example:
var button = new InputPort(
Pins.ONBOARD_SW1,
false,
Port.ResistorMode.Disabled); -
Improving the Netduino Knight Rider effect with a shift register
In
my last Netduino post, I showed how to create a simple Knight Rider effect.
One of the problems of that implementation was that we
were occupying one digital port of the Netduino for each
light in the ramp. It’s fine for that simple effect, but
in future posts we’ll look at controlling our whole 8x8
LED matrix, which has 16 pins whereas the Netduino has
only 14 digital ports.
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More Netduino fun
Last time, we ran a very simple program on the
Netduino. This time around, we’ll actually connect some
real hardware to that microcontroller and blink some
lights! You know what? Let’s go crazy! Let’s go for
Knight Rider lights! Woohoo!