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Chuckles's Content
There have been 39 items by Chuckles (Search limited from 06-June 23)
#50728 Netduino + Video Experimenter shield
Posted by Chuckles on 23 June 2013 - 12:43 AM in Netduino Plus 2 (and Netduino Plus 1)
#50706 Turnkey RTC?
Posted by Chuckles on 21 June 2013 - 08:00 PM in General Discussion
Can anyone recommend a time keeping solution for a non-networked Netduino Plus 2 that does not require soldering anything anywhere? I have seen a few kits from some favorite vendors, but nothing ready-to-go.
Thanks.
#50692 OT: Why no Long Jumper Wires?
Posted by Chuckles on 21 June 2013 - 01:12 PM in General Discussion
#50640 Cheap + Good Cases / Enclosures - Continuing to Beat on this Topic
Posted by Chuckles on 19 June 2013 - 06:30 PM in General Discussion
Like many other newbies/lightweights, I looked around for something permanent-ish to hold my Netduino ][+ with an LCD and/or other gadgets. I followed a link to http://www.thingiverse.com/thing:48939 and uploaded it to www.sculpteo.com, who quoted me ~$80. When an open holder costs more than my device, I am sure I am doing something wrong.
So.... Can anyone recommend a "big enough" case for a Netduino Plus 2 in the $20-$30 range? It seems like this should be easier to find than it is. I am sure I am missing something. Or maybe this is a market waiting to be cracked?
Thanks.
#50571 Mocking Inputs?
Posted by Chuckles on 17 June 2013 - 04:32 PM in General Discussion
I have gotten a lot of mileage out of .NET using Mocks for unit and integration tests in Visual Studio.
Is there an equivalent for the Micro Framework?
My eventual goal is to read from 4 sensors and do something with the captured information. Before I get to that goal, I was thinking that I could exercise the other parts of the system by creating "fake inputs", injecting known data into their structures/wrappers, and then debugging with that fake stuff.
Is that possible?
Thanks.
#50524 OT: Why no Long Jumper Wires?
Posted by Chuckles on 17 June 2013 - 02:43 AM in General Discussion
#50523 Serial LCD and Netduino Plus 2
Posted by Chuckles on 17 June 2013 - 01:45 AM in Netduino Plus 2 (and Netduino Plus 1)
Thanks.
#50520 Another Newbie Steps into the Arena
Posted by Chuckles on 17 June 2013 - 12:59 AM in General Discussion
#50519 Source for an HD47780 ?
Posted by Chuckles on 17 June 2013 - 12:55 AM in General Discussion
I saw this blog post:
http://10rem.net/blo...th-the-netduino
as well as the codeplex library, but cannot seem to find anything on the "usual" online retail places that have the part I can wire up to a breadboard, and then a Netduino //+, without soldering anything.
All ideas appreciated.
Thanks.
#50509 Another Newbie Steps into the Arena
Posted by Chuckles on 16 June 2013 - 02:00 AM in General Discussion
Thanks for the thoughts and responses.
The cars have weight restrictions, so putting things like magnets on them is off-limits. I think that takes me back to the idea of having some kind of sensor facing "up" and detecting when a car passes over them by casting a shadow. The raceway has fluorescent lights, so I think something like embedding a mini photocell (https://www.sparkfun.com/products/9088) might be a good move; but I wonder how long the wiring can be between the cell and the Netduino, what/where resistors need to be, and also if I can read 4 at a time with a Netduino Plus 2.
What do you think of using the light-detection strategy and that particular part, which was mentioned on http://johnnycode.co...h-the-netduino/ ?
Thanks again.
#50485 Another Newbie Steps into the Arena
Posted by Chuckles on 14 June 2013 - 04:55 PM in General Discussion
It did... I actually web-searched a bit, read through his stuff, and that is how I landed here and discovered the Netduino platform. And it was a happy discovery!
I plan to attempt something a little different than what Jarrod created.
I was thinking of a configuration where space for each sensor is cut into the track, and as a car rolls over them, time is captured (via IR or pressure or sound or something (I need at minimum thousandths of a second precision, prefer ten-thousandths). I am trying to remove the need to have a paired sensor, remove the need to have hardware above/below the finish line. Just something that points "up" and can tell when something is over it.
I saw the below sensors via web searches but am not sure if Netduino driver support exists for 4 simultaneous sensors, and if they would actually "work" for that purpose and can be powered by the Netduino itself.
http://www.adafruit.com/products/164
or
http://www.amazon.co...=A10EAPE4CAYC9P
or
https://www.sparkfun.com/products/9375
or ?
The time captured would be displayed on a simple web page and also on a 4-line LCD (reason why I'm leaning towards a Netduino Plus 2).
I am also trying to think through how to start the timing (open/close start gate?). The sky is the limit there.
I have several months to get this done, so all thoughts appreciated on how to get started properly.
#50471 Library for HC_SR04 Ultrasonic Rangefinder
Posted by Chuckles on 14 June 2013 - 02:21 AM in Netduino 2 (and Netduino 1)
This looks really cool.
Could 4 sensors be connected to a single Netduino Plus 2? I am thinking of using a set to collect simultaneous data at the same time; 4 are lined up within 1" of each other, pointing at the sky, and when something rolls over each one, the Datetime could be saved/displayed for each acquisition.
#50464 Another Newbie Steps into the Arena
Posted by Chuckles on 13 June 2013 - 01:38 PM in General Discussion
#50420 Simple Kind of Touch Sensor, Pinewood Derby Timer?
Posted by Chuckles on 11 June 2013 - 10:41 AM in General Discussion
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