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bill.french

Member Since 28 Sep 2010
Offline Last Active Oct 16 2012 08:15 PM

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Trenton Computer Festival this weekend!!!

02 April 2011 - 01:47 AM

Hi there, I haven't been hanging around the forum as much, but have been busy, busy, busy! With Netduino projects and other things.

Anyway, this weekend is the Trenton Computer Festival! (in Trenton, NJ) There's going to be an all-day "Arduino Workshop", which could be of particular interest, including an open hack time, which I'm hoping to bring my Netduino+ to.

Also, the flea market has traditionally had a wider variety of computer stuff, some older stuff, junk, etc. -- as compared to most computer flea markets.

Either way, everyone enjoy your weekend!

Coding style discussion

23 January 2011 - 02:44 PM

Edit: Actually there is one other thing, what is DDD?: this http://www.gnu.org/software/ddd/?

my guess was this: http://en.wikipedia....n-driven_design

... i've added it to my extensive list of things to read about.

"Universal" LCD Shield

20 January 2011 - 03:40 AM

I etched a shield that can take two different LCD screens:
http://www.sparkfun.com/products/10168 (monochrome, about $10)
...and...
http://www.sparkfun.com/products/10090 (color, about $32)
It also includes a 5 way tactile switch:
http://www.sparkfun.com/products/10063

Attached is the etch pdf from Fritzing if anyone cares to make one themselves.

Here's some pics:
1. With the color screen, running a simple drawing program I made up using the joystick:
Posted Image

2. With the B&W screen:
Posted Image

3. The shield with no screens:

4. The copper side, my technique has really improved:
Posted Image

"Open Collector"

19 January 2011 - 12:30 AM

Form the manual for my uLCD-144: (emphasis mine)

Master Reset signal. Internally pulled up to 3.3V via a 4.7K resistor. An
active Low pulse greater than 2 micro-seconds will reset the module. If
the module needs to be reset externally, only use open collector type
circuits. This pin is not driven low by any internal conditions. The host
should control this pin via one of its port pins using an open
collector/drain arrangement.

From wikipedia, I feel like I have a good handle on what "open collector" means -- but how do I do that with a netduino?

Basic question about managing classes

19 January 2011 - 12:26 AM

Sorry if this is really dumb. Let's say I have a class in a .cs file that I want to use in multiple projects. Is there any easy way to do this so that if I fix a bug in the class while working in one project, all the other projects will get the latest version of the file? Hopefully I'm phrasing this in a way that makes sense!

bill.french

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