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Jeffa

Member Since 07 Nov 2011
Offline Last Active Jul 21 2013 06:28 PM
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Posts I've Made

In Topic: Netduino Plus 2 and Communication with Windows Forms

12 July 2013 - 12:09 PM

On that specific project it was right on a prototyping shield. However in another project using Phidgets(before I discovered NerdKits, arduino and netduino etc.) I ran one ~ six feet from the controller using some cat5 wire I had handy. The LM34 data sheet has some notes about length of the wire and some additional discreet component circuits. My application worked fine with the sensor soldered to the end of the wire. 

 

Check out this article: "The Long Arm of the Nerdkit" This guy went thirty feet. 

 

I've got a Dallas DS18B20  programmable resolution 1-wire digital thermometer sensor sitting on my bench just itching to be experimented on. Multiple addressable sensors on the same wire. This device does not suffer from analog noise interference as the LM34 may experience. I believe fifty meters wire length is not unheard of with the DS18B20. (see this discussion)

 

c ya.. - jeffa


In Topic: Netduino Plus 2 and Communication with Windows Forms

10 July 2013 - 10:56 PM

I published some .netmf source to read temperature from an LM34temperature sensor and serve it up as XML. It also sets the time from an NTPserver. I mapped a path through my router so I can read the temperature served from home while on the road. Some project resources are available at http://homeamation.azurewebsites.net/ I have some mocked up data on that same Azure site which allowed me to publish the app without my home network data logger exposed to the general public. XML example:  http://homeamation.a...TemperatureData

 

FWIW I also wrote a Microsoft Windows 8 and Windows Phone 8 app to consume this XML as well as some JSON which I published in the respective MS stores. I also published the application sourceon gitHub.I wrote it with MVVMLightToolKit and a shared Portable Class Library View Model.

 

I'm off to check out @iced98lx project as I happened by this thread wondering how I want to deal with some biDirectional data over Bluetooth.

 

c ya... - jeffa aka @jhalbrecht


In Topic: AnalogInput constructor

08 July 2013 - 05:42 PM

Actually found the documentation. Posting a question is always good for finding it myself... I removed the SecretLabs.NETMF.Hardware.AnalogInput .dll and added the following found in the MS documentation http://msdn.microsof...(v=vs.102).aspx

 

Wonder why '10' worked in 4.3.... -1 gives maximum precision. Code working now.

 static AnalogInput a0 = new AnalogInput(AnalogChannels.ANALOG_PIN_A0, 3.3, 0.0, -1);

c ya.... 


In Topic: AnalogInput constructor

08 July 2013 - 05:25 PM

Reading around the forms... I tried: adding the SecretLabs.NETMF.Hardware.AnalogInput .dll and explicitly called it: 

static SecretLabs.NETMF.Hardware.AnalogInput a0 = new SecretLabs.NETMF.Hardware.AnalogInput(AnalogChannels.ANALOG_PIN_A0, 3.3, 0.0, 10);

Apparently there is only one parameter for that constructor. So still searching....


In Topic: Inconsistent behavior; P1 vs: P2

20 February 2013 - 03:30 PM

Found the STDFU

Flashed

Can't update the MAC address. I get: "Unable to erase configuration sector memory" however when I run the application it updates the IP address, name server and default gateway. Tried the mfdeploy config again. Still can't write config mem.

 

At any rate deploying new code is far more consistent now. I guess I can live with the default (00-04-a3-00-00-00) MAC address for now while I'm behind NAT with a unique MAC address.


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