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stacyh3's Content
There have been 47 items by stacyh3 (Search limited from 10-May 23)
#14240 CfrazyFlie Quadcopter
Posted by stacyh3 on 11 June 2011 - 10:24 PM in General Discussion
#10389 Chris the star!
Posted by stacyh3 on 28 February 2011 - 02:26 PM in General Discussion
#10350 Waterproof temperaturesensor for Netduino?
Posted by stacyh3 on 28 February 2011 - 02:45 AM in General Discussion
Thermometer from GHI
#10010 inPulse Watch
Posted by stacyh3 on 22 February 2011 - 09:08 PM in General Discussion
InPulse Hackable Watch
It would be cool if this could be flashed with the .NET Micro Framework. The rebirth of SPOT!
#9983 Color Sweeper
Posted by stacyh3 on 22 February 2011 - 01:38 AM in Project Showcase
Thanks,
Stacy
#9576 Color Sweeper
Posted by stacyh3 on 15 February 2011 - 07:32 AM in Project Showcase
With common cathode, you'll drive power to each of the colors using OutputPorts or PWM. With common anode, you'd pull current through the LEDs by doing the opposite (i.e. writing 'false' to OutputPort would turn the LED off).
I prefer common cathode because it's straight-forward, but common anode may be more popular. Also--how much current do you need to drive?
Chris
I see what you mean about common cathode being more straigh-forward. For now, the project is just a single RGB LED, so not much current draw. It's one that I picked up from Radio Shack. I think I might want to go bigger/brighter at some point, but I'm not sure yet. I may also attach an LCD display.
Stacy
#9380 Color Sweeper
Posted by stacyh3 on 13 February 2011 - 03:28 AM in Project Showcase
Funny that you should post this today - I've been playing around with a similar project this afternoon .
Regards,
Mark
Okay. Crazy coincidence! I've been playing with RGB LEDs today too! I found out that there are at least two types: common cathode and common anode. Does anyone have pros/cons for using the different types? Any tips?
Thanks,
Stacy
#3351 DNS functions
Posted by stacyh3 on 01 October 2010 - 01:04 PM in Netduino Plus 2 (and Netduino Plus 1)
Stacy
#3350 DNS functions
Posted by stacyh3 on 01 October 2010 - 12:50 PM in Netduino Plus 2 (and Netduino Plus 1)
Hi Stacy,
Interesting. In desktop .NET, does Dns.GetHostEntry("mymachine") resolve the IP address of local machines against a DNS server--or does it discover the local machines in another way?
Chris
Good question. I'll take a look to see what the code is doing on the desktop. I'm on Amtrak right now and tethered to my phone, so it'll be a while. Maybe I'll shoot an email to one of our networking guys.
Stacy
#3349 UART Shield
Posted by stacyh3 on 01 October 2010 - 12:43 PM in Project Showcase
#3314 DNS functions
Posted by stacyh3 on 01 October 2010 - 12:04 AM in Netduino Plus 2 (and Netduino Plus 1)
#3156 How to use the SD card and StreamWriter
Posted by stacyh3 on 29 September 2010 - 03:08 AM in Netduino Plus 2 (and Netduino Plus 1)
#3108 Taking sockets further
Posted by stacyh3 on 28 September 2010 - 12:42 PM in Netduino Plus 2 (and Netduino Plus 1)
Encoding.UTF8.GetBytes(s)will do the trick and save you a little bit in terms of memory allocations.
#2967 Netduino Plus Unable to connect to from MFDeploy or Visual Studio after loadi...
Posted by stacyh3 on 26 September 2010 - 10:53 PM in Netduino Plus 2 (and Netduino Plus 1)
#2499 Experimental Drivers for Wiznet-based Ethernet Shields
Posted by stacyh3 on 19 September 2010 - 05:20 PM in Beta Firmware and Drivers
P.S. Based on preliminary tests with the v4.1.1 alpha firmware (and a temporary jumper wire between D4 and D10), you can use the MicroSD card slot on the new Arduino Ethernet shield as well.
That seems cool. A two-for-one shield. Too bad, I already ordered the shield with no SD. Oh well. Maybe for a future project.
#2201 MP3 Shield
Posted by stacyh3 on 13 September 2010 - 01:50 AM in Netduino 2 (and Netduino 1)
.NET Micro Framework supports FAT file system so I believe you only need a shield with and an SD card card socket. Or use other net micro framework device that has SD/microSD card socket. There are several out in the market.
Yes, I understand that. That's why I thought the first shield would be good since it's MP3 and has SD built in. It seems that assembling the features of the first shield from separate components would come out to about the same cost, don't you think? Of course, it would be fantastic to do it for less money!
#2150 MP3 Shield
Posted by stacyh3 on 12 September 2010 - 04:28 AM in Netduino 2 (and Netduino 1)
#2142 MP3 Shield
Posted by stacyh3 on 11 September 2010 - 09:28 PM in Netduino 2 (and Netduino 1)
Here's another shield that would be interesting to test: MP3 Shield for Arduino. I've seen some posts out there for making a similar device sans-shield for around $30. I'll have to investigate that. It would be interesting to use something like this as a source device for my whole house audio system.
Stacy
#2066 SchmartBoard
Posted by stacyh3 on 09 September 2010 - 10:48 PM in General Discussion
#2058 Question about Netduino Idea
Posted by stacyh3 on 09 September 2010 - 10:28 PM in General Discussion
#2020 Power Converter? What are those things called?
Posted by stacyh3 on 09 September 2010 - 01:42 PM in General Discussion
#2016 Power Converter? What are those things called?
Posted by stacyh3 on 09 September 2010 - 01:24 PM in General Discussion
#1874 Real Time Clock
Posted by stacyh3 on 07 September 2010 - 12:04 AM in Netduino 2 (and Netduino 1)
This clock is pretty inexpensive and works well. I'm sure that there are better ones out there with alarms, etc.
#1735 Serialization
Posted by stacyh3 on 03 September 2010 - 12:23 PM in Netduino 2 (and Netduino 1)
I don't think Serialization is available on any of the .net platforms (Netduino or Fez). Besides, for a microcontroller serialization is SLOW.
Slow depends on the application don't you think? For my application it's okay it it's a bit slow. I need to deserialize once at startup and then the intervals between serialization are pretty long - on the order of minutes to hours.
In any case, if people are using the emulator, be aware that Reflection.Serialize and Reflection.Deserialize work fine, but they appear not to be in the Netduino firmware. This is not a major problem for me since I just implemented my own code for what I need, but it's good to know what's there and what's not.
#1707 Serialization
Posted by stacyh3 on 02 September 2010 - 10:29 PM in Netduino 2 (and Netduino 1)
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