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by jasongreen
Sun Jan 11, 2015 8:39 pm
Forum: Python
Topic: Breaking out of a code block via a callback
Replies: 2
Views: 547

Re: Breaking out of a code block via a callback

My problem is that if the callback function is triggered while the main thread is waiting for an input(), the global will never get checked. Is there something I can use to poll the keyboard for a whole string that won't make everything else wait?
by jasongreen
Sun Jan 11, 2015 7:11 pm
Forum: Python
Topic: Breaking out of a code block via a callback
Replies: 2
Views: 547

Breaking out of a code block via a callback

Here's what I have (in concept) Inside a while true: loop is an if that starts a code block when a GPIO pin changes. In that block are a couple of points where the code waits for keyboard input with an input(). I'd like to use a callback function on another GPIO pin to break out of the code block an...
by jasongreen
Fri Sep 30, 2011 8:08 pm
Forum: General discussion
Topic: Some very good audio news
Replies: 32
Views: 6207

Re: Some very good audio news

I'm imagining R-pi as an audio front end. I wonder if one could be the back end as well with something like ampache? The more I think about it, the more of these I imagine myself buying.
by jasongreen
Fri Sep 30, 2011 7:56 pm
Forum: General discussion
Topic: Total Cost of Ownership
Replies: 28
Views: 5306

Re: Total Cost of Ownership

<t>The only item I worry about asking end users to supply is the PSU. If you get the voltage wrong you fry the board, and hoping that you have something with the right diameter & polarity can be quite hit or miss. I do recognize that global distribution makes the PSU question more difficult as o...
by jasongreen
Fri Sep 30, 2011 6:07 pm
Forum: Other projects
Topic: Diaspora "SEED"
Replies: 15
Views: 8072

Re: Diaspora "SEED"

<t>Quote from barnaby on September 28, 2011, 20:34<br/> <br/> Hosting a pod on a raspi would be more tricky — in terms of compilation, would a ruby web app need it? And in terms of performance, you would only be able to host a very small pod on a raspi. Any more than one or two users and it would pr...
by jasongreen
Fri Sep 30, 2011 5:53 pm
Forum: General discussion
Topic: Backup/restore, Image update and distribution
Replies: 7
Views: 1805

Re: Backup/restore, Image update and distribution

Will you have to have an 802.11 USB dongle to use the package manager on a Model A? I'd consider getting A's for my kids (cheaper, no built in NIC= easier to know what's installed) but I worry the update process would be a huge headache without RJ45 on board.
by jasongreen
Fri Sep 30, 2011 5:10 pm
Forum: Other projects
Topic: Cases for the Raspberry Pi
Replies: 866
Views: 396095

Re: Cases for the Raspberry Pi

<t>This looks familiar,but I can't place it.<br/> <br/> Quote from Chris on September 3, 2011, 22:31<br/> This may seem a little corny but with all the people wanting to make or have made cases, why dont we focus on a unified design.<br/> <br/> <br/> <br/> You can probably guess what I have just wat...
by jasongreen
Fri Sep 09, 2011 2:13 pm
Forum: General discussion
Topic: Thoughts on Solving a Use Case with the B version?
Replies: 18
Views: 3789

Re: Thoughts on Solving a Use Case with the B version?

Quote from ahven on September 9, 2011, 06:26

USB 2.0. Sadly it will not matter - the Ethernet is also connected via USB.

I thought the $35 model had a dedicated RJ-45 for wired networking. Am I wrong?
by jasongreen
Tue Sep 06, 2011 5:28 pm
Forum: General discussion
Topic: What have we missed?
Replies: 286
Views: 51280

Re: What have we missed?

<t>If I read the FAQ correctly, the initial release won't include a case. I don't have a RepRap or MakerBot sitting around, so this is kind of a big deal since I wanted to give R-Pi's to my kids. I don't think you can give them to children until they have some sort of case. How soon will there be so...
by jasongreen
Tue Sep 06, 2011 4:39 pm
Forum: General discussion
Topic: STICKY: Introduce yourself!
Replies: 3544
Views: 114492

Re: Introduce yourself!

<r>Quote from james on September 2, 2011, 15:35<br/> <br/> What I'd like to be able to do is produce a practical course called "raspberries all the way down", covering computing from the reset vector to the 3d rendering, from machine code to functional languages, from raw bits and bytes to aspect or...
by jasongreen
Thu Sep 01, 2011 8:26 pm
Forum: Staffroom, classroom and projects
Topic: Teaching Youngsters Programming
Replies: 131
Views: 31524

Re: Teaching Youngsters Programming

How are the python graphics libraries? I remember that most of my early months of BASIC self study at around age 10 were spent trying to get an Apple IIe to draw pictures.
by jasongreen
Thu Sep 01, 2011 6:48 pm
Forum: Staffroom, classroom and projects
Topic: Teaching Youngsters Programming
Replies: 131
Views: 31524

Re: Teaching Youngsters Programming

I always found the java inherited overhead of Processing [ void setup() etc.] sort of off putting for a beginner, although I think the graphic emphasis is a plus.
by jasongreen
Wed Aug 31, 2011 3:38 pm
Forum: General discussion
Topic: Welcome Pack
Replies: 14
Views: 3470

Re: Welcome Pack

Beyond which programming language, there's also the question of which human language(s) you would translate the documentation into and who would do all that translating.
by jasongreen
Mon Aug 29, 2011 7:08 pm
Forum: General discussion
Topic: STICKY: Introduce yourself!
Replies: 3544
Views: 114492

Re: Introduce yourself!

<t>I'm an e-learning administrator in the USA. When I first heard of the R-Pi, I imagined it as a computer inexpensive enough to give to my kids (The 8 year old fiddles with Alice and coaxed me into installing Blender, though the tutorials were too intimidating). Now that I've thought more about it,...
by jasongreen
Mon Aug 29, 2011 6:41 pm
Forum: Staffroom, classroom and projects
Topic: Teaching & Learning Music Notation
Replies: 27
Views: 15220

Re: Teaching & Learning Music Notation

If you want something programming like that could generate music, I'd think something like CSound would be a better fit.
by jasongreen
Fri Aug 19, 2011 7:02 pm
Forum: General discussion
Topic: How would you use a Raspberry Pi device?
Replies: 514
Views: 205134

Re: How would you use a Raspberry Pi device?

Diaspora has already been mentioned. There's also the https://www.freedomboxfoundation.org/, a software stack for privacy. It's Debian based already.
by jasongreen
Fri Aug 19, 2011 5:54 pm
Forum: Staffroom, classroom and projects
Topic: Teaching & Learning Music Notation
Replies: 27
Views: 15220

Re: Teaching & Learning Music Notation

@ Mark - Thanks for the link to omet.ca. Lilypond seems a bit steep for Theory I students notating part writing examples. I wonder how something like Denemo would work on a RaspberryPi. It does MIDI in and playback.

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