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by winwaed
Tue Dec 27, 2016 3:46 pm
Forum: Other projects
Topic: Hacking the Code-a-pillar?
Replies: 21
Views: 15262

Re: Hacking the Code-a-pillar?

Finally have ours unwrapped (btw it works on carpet but can have problems with hollows in the pile - but yes tile or wood would be better) As expected it is a little advanced for our son, but still interested in hacking it. Franck: Sounds like you've had the most experience hacking it. I don't have ...
by winwaed
Fri Nov 18, 2016 7:56 pm
Forum: Other projects
Topic: Hacking the Code-a-pillar?
Replies: 21
Views: 15262

Re: Hacking the Code-a-pillar?

Yes I was thinking about how it might work, and (to me) it would make sense if it was like a shift register. So the head just queried the first segment, and that queries the next, and so on, so the instructions shift forward towards the head with each "move". There would be global "reset" instructio...
by winwaed
Fri Nov 04, 2016 7:12 pm
Forum: Other projects
Topic: Hacking the Code-a-pillar?
Replies: 21
Views: 15262

Hacking the Code-a-pillar?

(apologies if this is the wrong 'folder') Has anyone had a go at hacking the Fisher Price "Code-a-Pillar"? (here's the Fisher Price product page: http://fisher-price.mattel.com/shop/en-us/fp/code-a-pillar-dkt39 ) We have one lined up for a Christmas present for our son. Seems like there should be sc...
by winwaed
Wed Sep 05, 2012 2:20 pm
Forum: Teaching and learning resources
Topic: edX (free online courses from MIT and Harvard)
Replies: 1
Views: 3234

Re: edX (free online courses from MIT and Harvard)

There's also Coursera ( coursera.org ) which has been running a little longer and was started by two Stanford professors. Coursera has expanded a lot in the past few months into other subject areas and other universities, but contains a lot of computer science / mathematics courses.
by winwaed
Tue Aug 28, 2012 2:08 am
Forum: Other projects
Topic: Natural Language Toolkit computational linguistics on a Pi
Replies: 6
Views: 7707

Re: Natural Language Toolkit computational linguistics on a

I don't know of one, and if there is, it is almost certainly a set of wrappers for a library coded in C++ or something like that.

Yes, only used it with text and humans.
by winwaed
Sat Aug 25, 2012 3:12 pm
Forum: Off topic discussion
Topic: inventor of the 555 Dies ;-(
Replies: 5
Views: 1228

Re: inventor of the 555 Dies ;-(

One of the unsung heroes. I see the Wikipedia 555 page claims 1 billion made every year - amazing! I see he recently wrote a book "A Much Ado About Almost Nothing": Has anyone read it? Any good? Like many people, my childhood included a 555 synthesizer. Mine used fixed resistors but was 'tuned' usin...
by winwaed
Fri Aug 24, 2012 8:26 pm
Forum: Other projects
Topic: Natural Language Toolkit computational linguistics on a Pi
Replies: 6
Views: 7707

Re: Natural Language Toolkit computational linguistics on a

I was going to start a new thread, but perhaps this is the best place to post... When I was a kid there were a lot of cool or potentially cool things that could be done with a compute. Of course most were beyond the immediate abilities. Things like photorealistic 3d, robotics, AI, etc. (as an aside,...
by winwaed
Fri Aug 24, 2012 7:31 pm
Forum: Other projects
Topic: Natural Language Toolkit computational linguistics on a Pi
Replies: 6
Views: 7707

Re: Natural Language Toolkit computational linguistics on a

Worked for me here with Wheezy too. Note that you need to use a larger SD card and expand the Wheezy partition if you want to do anything more than a minimal install. Eg. a user will probably want to install some of the corpora, data models, etc. Also I had a lot of trouble with nltk.download() - it...
by winwaed
Fri Aug 24, 2012 6:33 pm
Forum: Other projects
Topic: how good is the magpi
Replies: 26
Views: 7570

Re: how good is the magpi

Generally good. Someone has already commented about photos behind text. I've seen the pros do this (New Scientist especially went through a phase not that long ago), and it is bad. It can make an article unreadable. The magazine as a whole has lots of colour and has a "glossy" look to it. This would...
by winwaed
Fri Jun 29, 2012 5:07 pm
Forum: For sale
Topic: BRAMBLES - finger jointed wooden case
Replies: 26
Views: 13906

Re: BRAMBLES - finger jointed wooden case

(finally got my invitation to order, so I've started to investigate 'everything else') You know what you could do, is to cut holes in the top and base, in the shape of a simplified Raspi logo... Most of us coult cut our own circular holes, but the logo includes leaves. I assume that is no problem if...
by winwaed
Mon Mar 12, 2012 12:59 pm
Forum: Other projects
Topic: Digital Geology
Replies: 52
Views: 14291

Re: Digital Geology

<t>@bjs The magnetometer looks like it could be a possible peripheral project.<br/> <br/> re. geophones: After seeing the seismometer thread I went looking online and someone had some used ones for sale - they were using them as a hobby seismometer (local earthquakes only, of course). However, for f...
by winwaed
Sun Mar 11, 2012 4:32 pm
Forum: Other projects
Topic: Digital Geology
Replies: 52
Views: 14291

Re: Digital Geology

<r>@bjs I like the field idea. Affordable ion probes that don't require re-agents would be ideal for our Costa Rica stuff. We really don't want to take "chemicals" by plane/customs, and try to avoid expensive electronics if possible. We've used "garden" pH meters in the past - they're more likely to...
by winwaed
Sun Mar 11, 2012 4:09 pm
Forum: Other projects
Topic: Digital Geology
Replies: 52
Views: 14291

Re: Digital Geology

<t>@Andre_P: No, that is still pretty much where things are. All the vendors still claim to support NMEA-0183 - even though their devices are usually USB. So for Windows PCs you typically need a vendor-supplied driver that makes makes the USB look like an NMEA COM Port!  Windows 7 introduced a new "...
by winwaed
Fri Mar 09, 2012 7:24 pm
Forum: Other projects
Topic: Digital Geology
Replies: 52
Views: 14291

Re: Digital Geology

<t>No not negative at all - I didn't know how far you were and so I was throwing ideas in!<br/> <br/> I agree about the importance of observation. And it is all well and good not learning about shading maps (cf. that article), but I think it is still very valuable to be able to visualise the 3d stru...
by winwaed
Fri Mar 09, 2012 6:07 pm
Forum: Other projects
Topic: Digital Geology
Replies: 52
Views: 14291

Re: Digital Geology

<t>Yes the GPS USB devices are readily available. My day job is maps/navigation: I would probably recommend against the "USB pen drive" type. They look tempting (small, etc) but we've found their reception is not as good due to interference from the host laptop. Some have reported using a USB extens...
by winwaed
Fri Mar 09, 2012 4:03 pm
Forum: Staffroom, classroom and projects
Topic: ARM Assembly / Operating System
Replies: 48
Views: 16585

Re: ARM Assembly / Operating System

<t>You know, I was actually thinking of a Baby-Forth this morning. Such a system could be very basic and supplied complete with source code. It could then be hacked / extended by kids. Instructions could be added to directly access a GertBoard - making it ideal for tinkering.<br/> <br/> I know as a ...
by winwaed
Fri Mar 09, 2012 4:00 pm
Forum: Other projects
Topic: Digital Geology
Replies: 52
Views: 14291

Re: Digital Geology

<t>I think such a system is going to be memory limited - but out in the field, you probably only need a few tens of square miles of data.<br/> <br/> Do you need a bluetooth connection? Keeping costs down, a wire connection to a PC would be cheaper.<br/> <br/> The Raspi's very low battery requirement...
by winwaed
Thu Mar 08, 2012 2:21 pm
Forum: Automation, sensing and robotics
Topic: Raspi-powered seismometer/seismograph
Replies: 63
Views: 38274

Re: Raspi-powered seismometer/seismograph

<t>I come from a geological / geophysical background, as well as a member of GeolSoc (so put "FGS" after my name! lol);  so this is the first RasPi educational project I've seen that I could really get behind.<br/> <br/> As with most people here I dabbled with electronics as a kid but I'm probably n...
by winwaed
Wed Mar 07, 2012 9:19 pm
Forum: General discussion
Topic: How many sold so far?
Replies: 19
Views: 5299

Re: How many sold so far?

<t>I think a lot of people (myself included) are waiting until there's more supply.<br/> <br/> I have ideas as to what to do with it (model railroad applications and a Bramble both come to mind)  but already have a hundred things on my plate - also one might make it transatlantic baggage in a few we...

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