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Niels R.

Member Since 16 Aug 2010
Offline Last Active Jul 26 2013 08:07 AM
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Topics I've Started

Hardware watchdog support

26 July 2013 - 08:12 AM

Hi,

 

I was wondering when the hardware watchdog on de N2+ will be supported.

 

As the network stack is a bit buggy, this really needs to be implemented. I have to manually reset my device twice a day as the network thread has blocked all other threads (and a software watchdog is unusable).

 

I'm currently looking at an external watchdog circuit using the 74HC4060, but I don't see the point adding hardware complexity when it is already there...

 

Kind regards,

Niels R.


N+ 2 "hangs" after a while. How to debug?

03 July 2013 - 06:24 AM

I have a N+ 2 running a simple program: get the values of 2 sensors every 30 seconds and send it to a web service.

 

After a while the web service stops receiving requests from the N+. When I look at the N+ I still see the LAN LED flicker from time to time.

 

I've deployed the same code with some additional Debug.Print() lines to another N+ an ran it connected to VS.

 

After a while I see the debug messages (and requests at the web service) have stopped, but no Exception message is shown in the debugger window.

 

How do I start debugging this? Any tips?

Additionally: How can I monitor the memory/CPU usage of my device?

 

Niels


Wifi bridge (e.g. Vonets VAP11G)

07 May 2013 - 07:24 PM

I'm currently building a device to monitor and control the fermentation of our home brewed beer using a Netduino Plus 2.

 

Since I don't want to drag an ethernet cable to the cellar I was planning on using a wifi bridge. After some searching I've bought a Vonets VAP11G. I tested the device using a desktop PC without a wifi adapter (also, a Windows computer is needed to set up the wifi bridge. It worked flawless, although the range is bit disappointing.

 

The next step is testing the wifi bridge with my little Fermentator project. And here started the frustration...

 

Although I see DHCP requests on my router log, the IP on the device is reported as 0.0.0.0. Opening a socket for listening or sending results in a SocketException. Changing the IP to static doesn't change a thing.

 

Once I was able to perform some network stuff, but the next reboot of the device resulted in the above behaviour.

 

Plugging in a ethernet cable makes the device run my code happily...

 

My question: does anyone have experience using a wifi bridge on a Netduino Plus? If so, which one did work for you?

 

Kind regards,

Niels

 

PS: I've found one mention of "Vonets" on the forum, but nothing useful.


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