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Bertrand Le Roy's Content

There have been 7 items by Bertrand Le Roy (Search limited from 27-April 23)


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#38383 LED Matrix

Posted by Bertrand Le Roy on 02 November 2012 - 04:03 PM in Netduino Go

I really recommend using a LED driver such as this one: http://nwazet.com/leddriver (disclaimer: that's my shop; but you can find the equivalent Maxim chip pretty much anywhere). Less than $9 and able to drive a 8x8 matrix. It's the right tool for the job. I have a post on my blog showing how to control an 8x8 matrix with a single shift register: http://weblogs.asp.n...a-netduino.aspx but doing it with a LED driver is a lot cleaner: http://weblogs.asp.n...-right-way.aspx We have a library for the Netduino to drive the chip and a matrix behind it: http://netduinohelpers.codeplex.com/ By the way, this LED driver is what we use to drive the screen of our little game console kit: http://www.pix6t4.com I hope this helps.



#36912 Nwazet Go Pro Kit

Posted by Bertrand Le Roy on 09 October 2012 - 11:45 PM in Netduino Go

one thing that I possible could live without, or with other design.. is that huuge knob for the potmeter. What were you thinking guys?? :)


That knob is gorgeous and feels great.



#36796 Nwazet Go Pro Kit

Posted by Bertrand Le Roy on 08 October 2012 - 07:14 PM in Netduino Go

The DAQ LEDS are visible through the special holes that we cut for them. The LEDs on the Go are also visible. That's 27 LEDs if my count is right. :)



#27965 Powering the Netduino Go! with a Lipo

Posted by Bertrand Le Roy on 23 April 2012 - 07:58 PM in Netduino Go

So drilling the plates works well? I was going to try that, but I was afraid of big chips along the edges, and I didnt want to ruin the beatiful plate!


No, it works beautifully. Wear safety goggles for chips but otherwise it should be pretty clean. That acrylic is fairly soft.



#27963 Powering the Netduino Go! with a Lipo

Posted by Bertrand Le Roy on 23 April 2012 - 07:33 PM in Netduino Go

Hi there. Bertrand here. I'm the guy who designed the plates, and they are imperfect, as there was stuff we didn't know when we cut them. There will be improvements on future batches, but I'd like our early customers to not be limited nonetheless. Here's what I did on my own prototypes, which were actually from smaller and earlier batches that had less holes than the ones you have: drill more holes. About the shield base, yes I've been using a small plate as an adapter of sorts, but it's not the only way. It's quite easy to add new holes with a Dremel tool if you mark the spot carefully first. I'm attaching a template that you can print to the right dimensions that has additional holes for the relay and shield base (shield base goes to the right of the go; is that an acceptable position?). Let me know what you think.

Attached Thumbnails

  • GoPlateMinimalest.png



#27199 Information on Nwazet Display Go! module

Posted by Bertrand Le Roy on 14 April 2012 - 12:28 AM in Netduino Go

I don't think the errors you are seeing have anything to do with your using VB. You are more likely missing references.



#26475 Redacted 00101100

Posted by Bertrand Le Roy on 04 April 2012 - 09:15 PM in General Discussion

What exactly is the higher-level protocol on top of go!bus, between Netduino Go and your display module? Are the drawing primitives related to common .NET abstractions?


Rendering commands from your .NET code on the Go are serialized and sent over the wire, then deserialized by the screen's controller and executed there. The screen itself is running those commands in native code. The API is a canvas-like vector graphics API. It will evolve in the future but already has some interesting features. You'll see a lot of activity from us just around the screen. We have surprises in stock. :)




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