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2013
Another rip from the Edinburgh Hacklab archives (Definately go there if you get a chance!!!).   What do you do if you have a cheap Robot mechanism with all sorts of inaccuracy and slop but want repeatable high levels of acuracy. Optical localisation is the answer work out where you are with a camera on your hand ..simples     Tom et al did a good job of the article so I won't copy it all here ...take a look! ...
  Ha good advice, the world is indeed NOT FLAT!!!   I've had this in my bookmarks for many years and I thought I'd share it with the few HAMs who have failed to spot it. This Software makes a really good job at estimating the reception of yours or other person's signal based on height, frequency,and a raft of terain variables! the end result is aset of highly coloured charts overlayed on various map sources including the inevitable Google maps.   Diagrams galore   ...
I'm an occasional visitor to the Hacklab, besides their own projects they also run a number of workshops such as this one on the Arduino. Below is a copy of their post and the general HackLab link is here     On Saturday 22nd June 2013 the lab will running an Arduino workshop. Photo by beraldoleal – Creative Commons Arduino is a micro-controller platform designed for ease of use and learning. It allows the creation of electronically controlled projects, whether it be simple ...
  Byvac a small company in Yorkshire has produced this excellent little kit using the DIl varient of the PIC32 proessor which is programable in BASIC via it's on board serial port.   This is a kit of parts so that over 20 Projects can be carried out using the PIC32 IC with a BASIC like programming language on the IC can be purchased on its own if required but this kit includes the IC.   No programmer is needed as all the programs are compiled on the chip from text files. A s ...
So it looks like watching Animals is the next fashion for the PI.   The BBC have created a birdbox monitoring system based on the good ol' Pi   Analysing the information here:   BBC Blog POST here: ...
The Raspberry Pi has introduced a veritable Tsunami of Linux powered ARM SBCs.   The latest of which is the Marsboard which is a very spunky name for an Allwinner A10 SOC powered device with 1GB of RAM and a Mali Graphics core. Also very usefully it has a SATA interface and a large number of I/O Brought out  for our delight   The board is available here   For more information a WIKI is available   Happy hunting! ...
Just had the need to work on a remote lighting project and I was made aware of these rather nice modules from 8 Devices. The Carambola2  is based on the Atheros AR9331 chipset with 64MBRAM WIFI,USB i2s,Ethernet and 23 GPIO all for 19Euros.   The Carambola2 runs OpenWRT as it's Linux distribution.   There's also a development board available which acts as a carrier /breakout board for the module   ...
My nephew is totally addicted to minecraft and will continue to play until the wee small hours. I figured that this single mindedness could and should be directed some where else at least to mitigate his block bashing. To this end we bought a small soldering kit from CPC  for his birthday. It comes with the Iron,base,solder,cutters and most impressively two small kits to work his magic on.     He was suitably impressed with the present and the fact that some fool trusted him ...
I really didn't think the camera would be sensitive enough for a successful Astro camera and maybe for more distant objects the lack of lite/exposure time will be a problem but fear not some one has stopped talking about it and gone and done it  with some quite lovely results.   He's doing this on his Celestron NexStar 6" with a 20 second exposure using RaspiVid.   From here he converts the video back to seperat eimages and then uses standard astronomy software to "stack" the ...
EdX is apparently celebrating their First Birthday and as part of the celebration brough out a new range of courses Including One on Solar Energy from Delft university.     I've done the Electronics Course provided by MIT and another to learn Python in both cases I was truely amazed at the quality of the course and  as importantly the delivery though the edX system.   If you are interested in trying it out this Autumn  then take a look at what's available here. ...
Just taken a look at Pat Kelly's blog it had a nice little entry about people been nice. I like that we need more of this and less doom and gloom!!   I was reminded of a project a few years ago where students were given the problem of building a robot to navigate New York. Obviously this is a rather daunting task especially as a student project.   The  project I loved was the simplest of all, the Tweenbot instead of technical means relied instead on a big cardboard smile ...
Problemchild

QRP Computing

Posted by Problemchild Top Member Jun 5, 2013
With the Raspberry Pi and other SBCs been used to drive SDR radios of all varieties it's interesting to see that this computing has also been used for  QRP (Low power) Ham Radio.     A rather interesting mailing list has popped up with  Specifically for QRP and Computing. As you'd expect the bias is towards constructing and using your own equipment so has a nice home brew feel about it ....If you have even a passing interest to computing & Radio try it out ...
I saw this some time ago and was quite taken with just how much crude wiring you can put in a parcel and still not have the device detected on the X-Ray machine .   Basically  if you have ever wondered what happens to your parcelafter you take it to be posted then you are in good company. Ruben obviously had a very strong urge to find out because he built all this   It looks a little crude but certainly works!   Here's his video of the escapade      ...
Pitty I cant get the title read out in the same way as the famous Pigs In Space  but we're close   I was rather taken with LondonHacker Space's Starship Simulator, even more so now they built it into a caravan and are driving it around the country .         There's even a rather fun video for it all     Link to their site here ...