#WidgetMesh Gateway continued…

I’ve had some mixed success with the serial port hack on the Airlive device since my previous post.

After setting up the uclib development environment I have now successfully compiled avrdude so I can program the RFM12WidgetBoard located inside the device, however I had a couple of issues when trying to talk to the WidgetBoard.
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WidgetMesh Coordinator/Gateway Device

The WidgetMesh network development for the Widgets is now underway, the last couple of days I’ve been learning how everything fits together in Contiki OS, as far as drivers go and how they communicate with the upper stacks, lots of looking through existing code. I now have a reasonable idea of how things should work and how I need to write my driver.
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Eagle3D

These are components I’ve created for Eagle3D.

You may also want to check out the tutorials on how to create your own components.  http://blog.everythingrobotics.com/tutorials/eagle3d-tutorials/using-google-sketchup-to-create-components/

Components

HopeRF RFM12B SMD 433Mhz/915Mhz RF Module

RFM12BSMD

Microchip MR24J40MA FCC Approved 2.4GHZ 802.15.4 RF Module

MRF24J40MA

Sparkfun SMA PCB Edge

SMA_FEMALE_PCB

PJ-326 3.5mm Jack http://www.switchcn.com/

PJ326

900Mhz GSM SMA Antenna attached to PCB SMA Connector

SMA_connector_antenna_hor

Downloads:

Strobit Eagle3D Library (19/03/2009) Download

Links

Disclaimer:

These are provided AS-IS and may contain bugs and or discrepancies and may not be to scale.

If you find any bugs or problems or make enhancements please feel free to contact me so I can update the downloads.

Network Shutdown Agent

The last few weeks at work have been shocking with power outages, I think mainly to do with the summer heat ramping up, 38DegC yesterday,  at one site I we have a fairly overloaded UPS that does not stay up for very long, while a new 8500VA is on order, I have decided to write a small agent application to shutdown all our servers at that site in a graceful manner based on a UPS battery life remaining,  i.e. initially all non critical services are shutdown, than as battery life decreases then core servers get shutdown.  The servers are a mix are a mix of Windows 2000, 2003 and of course Linux 🙂  

Now being the glutton for punishment I am, I know there is probably something already out there that will send out a broadcast to shut things down, but always wanting to implement agent based solutions I think this would be a nice project.