Go to advanced search

by chrisryall
Wed Jun 11, 2014 9:14 pm
Forum: Python
Topic: Plotting with Python
Replies: 4
Views: 1579

Re: Plotting with Python

mathplotlib is awesome, but uses the X gui interface, which takes a few seconds to update. On my PC that was a manual job. The necessary python object and methods were easy (once you have sussed Python)!
by chrisryall
Wed May 07, 2014 6:09 pm
Forum: Off topic discussion
Topic: Antivirus - Yay or Nae?
Replies: 24
Views: 32268

Re: Antivirus - Yay or Nae?

.
:? Last anyone should wonder, AFAIR the GIF in question was the Perth University logo
by chrisryall
Wed May 07, 2014 9:45 am
Forum: Off topic discussion
Topic: Antivirus - Yay or Nae?
Replies: 24
Views: 32268

Re: Antivirus - Yay or Nae?

A GIF attachment from a trusted (University) source caused me no end of trouble once, and actually replaced every GIF on my PC kit with itself. Hard to see what people get out of writing these things, and I do think exemplary sentences are appropriate as it causes millions of people grief. I'm a lot...
by chrisryall
Tue May 06, 2014 7:48 am
Forum: Python
Topic: Python - do 3 things at once?
Replies: 7
Views: 1247

Re: Python - do 3 things at once?

The dictionary would simply hold pointers to the functions, joined to index values (perhaps 0,1,2,3,etc here). The actual functions could be in same file or included from another file, it doesn't matter. This http://stackoverflow.com/questions/10369537/using-dictionaries-in-python-in-place-of-case-s...
by chrisryall
Tue May 06, 2014 7:15 am
Forum: Python
Topic: Python - do 3 things at once?
Replies: 7
Views: 1247

Re: Python - do 3 things at once?

I believe the favoured pythonic method is to put a line of functions in a dictionary (they are just objects) and do lookup. not had to do it, and I suspect that if the actions are only a line or so the line of ifs might be more efficient. Depends on the job, of course. Python's requirement for white...
by chrisryall
Mon May 05, 2014 8:10 am
Forum: General discussion
Topic: Account "upset"
Replies: 5
Views: 849

Re: Account "upset"

for debug purposes then .. I usually use Safari on an ipad, away from home that may be iphone, but you have to be keen to read the forum! About 20% of reads are Firefox/windows7 on my desktop Occasionally I use MSIE at work, tends to be about 4 years behind current version. In all cases I leave the ...
by chrisryall
Sun May 04, 2014 7:03 pm
Forum: General discussion
Topic: Account "upset"
Replies: 5
Views: 849

Account "upset"

The forum keeps logging me out, and even after logging back in it made me reenter password and the word "chocolate" even to post this. It says "too many sign ins" … I have used it from work and on my phone, so those could remain open. Closing off on my Pc had no effect. Am presently on a tablet. Any...
by chrisryall
Fri May 02, 2014 8:31 pm
Forum: Other projects
Topic: Electronic Medical Records package for the developing world
Replies: 16
Views: 4164

Re: Electronic Medical Records package for the developing wo

I've been involved in electronic medical records "EPR" for a long time, with my first conversation wrt the hammersmith system, back in 1979. It's still not totally solved short of an expensive RAID based system, with multiple layers of hack protection, given the Draconian low on personal data in the...
by chrisryall
Fri May 02, 2014 10:10 am
Forum: Other programming languages
Topic: BASIC is 50 today!
Replies: 52
Views: 9084

Re: BASIC is 50 today!

I think BASIC's still useful, and if you regard it as essentially a scripting tool it's often fine, also nice to have same/similar syntax wherever you are? As for goto - well, I rarely used it even in those BBC BASIC days. But I did use it in high level language, to escape cleanly from deeply nested...
by chrisryall
Wed Apr 30, 2014 5:43 pm
Forum: Other programming languages
Topic: BASIC is 50 today!
Replies: 52
Views: 9084

Re: BASIC is 50 today!

The new user interface for iPad/Phone released in December is "TechBASIC" and it even offers GOTO statements!

There's life in the old dog yet!
by chrisryall
Tue Apr 29, 2014 4:55 pm
Forum: Advanced users
Topic: [Tutorial] How to move away from NOOBS
Replies: 23
Views: 8974

Re: [Tutorial] How to move away from NOOBS

Masterly. (And thanks)

I cannot imagine why naive newcomers to Linux find this sort of thing difficult ;)
by chrisryall
Mon Apr 28, 2014 8:29 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Arduino IDE/avrdude for barebones atmega328 programming
Replies: 3
Views: 2611

Re: Arduino IDE/avrdude for barebones atmega328 programming

The Pi co-op shield is essentially a bare bones arduino clone, controlled by the serial pins. It's worth reading the stuff at http://www.dawnrobotics.co.uk/pi-co-op-raspberry-pi-arduino-add-on-board/ though I have to say I couldn't get it to load the sketch (seemed to be visual interface issues - I ...
by chrisryall
Wed Apr 23, 2014 10:45 pm
Forum: Off topic discussion
Topic: html5 - click to download
Replies: 10
Views: 2072

Re: html5 - click to download

I'm sure it is. But I think that the issue in the coming HTML5 world (this merely "another improvement"?) is whether protocols designed to preserve bandwidth in the dialup and HDMI era need to be continued, or gracefully retired?
by chrisryall
Wed Apr 23, 2014 8:54 pm
Forum: Off topic discussion
Topic: html5 - click to download
Replies: 10
Views: 2072

Re: html5 - click to download

if ".7z" (whatever that is) isn't standard, and only works in Linux ( and I do have Linux kit) then I'd suggest that it isn't the future. The days of tight bandwidth are long gone, eg I triple downloaded the Atmel studio suite today, eventually finding the 2 registry entries that stopped it installi...
by chrisryall
Mon Apr 21, 2014 7:03 am
Forum: General discussion
Topic: Pi Hater?
Replies: 20
Views: 3236

Re: Pi Hater?

I have always felt that the default boot into desktop was a design error, trying to be what it's not? So fair criticism there, and something that caused me some pain to workaround as a noob. Not quite sure what is his, what is edit at present, but it looks balanced just now. Nothing is perfect, eg I...
by chrisryall
Mon Apr 21, 2014 6:50 am
Forum: General discussion
Topic: new website too slow and heavy!!
Replies: 22
Views: 4032

Re: new website too slow and heavy!!

Spent some time last year persuading my son that his business site didn't need three different 5MB backgrounds :? I run on a 1G network at work, but standard net sites make such assumptions all too often, and at their peril. Personally I've always tried to mirror the level of complexity, CSS deploym...
by chrisryall
Thu Apr 17, 2014 5:31 am
Forum: General discussion
Topic: new website too slow and heavy!!
Replies: 22
Views: 4032

Re: new website too slow and heavy!!

[deleted]
by chrisryall
Wed Apr 16, 2014 9:33 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: An experiment in bit-banging SPI
Replies: 22
Views: 19571

Re: An experiment in bit-banging SPI

Clever idea. A robot with say a Pi-brain and up to 4 (should be enough?) "spinal reflex" level arduino/whatever's to control subsystems could read info off them simultaneously and then use a 16 byte single lookup to get the bits into positions 0,8,16,24. You could then AND in, and bit shift into the...
by chrisryall
Mon Apr 14, 2014 7:09 pm
Forum: Off topic discussion
Topic: html5 - click to download
Replies: 10
Views: 2072

Re: html5 - click to download

W3schools says

Code: Select all

<a href="/images/myw3schoolsimage.jpg" download="w3logo">
It isn't fully implemented yet, but then nor is HTML5? As ever one will be at the mercy of the browser, which does tend to "display" images. But the intent looks clear
by chrisryall
Mon Apr 14, 2014 6:52 pm
Forum: Off topic discussion
Topic: html5 - click to download
Replies: 10
Views: 2072

Re: html5 - click to download

I routinely avoid zips on the internet. You never know what's in there! certainly only "trusted site" stuff.

Why zips anyway. They download in seconds. Nowadays so does the zipped content! Ok, its useful for a package of files, but quite hard work then, unzipping :( They seem a relic from the past.
by chrisryall
Mon Apr 14, 2014 10:33 am
Forum: Off topic discussion
Topic: Twins separated at birth?
Replies: 7
Views: 1838

Re: Twins separated at birth?

.
.
Ever looked at pictures of Eben Upton and Jason Statham .. and Mikerr (of this parish) side by side? ;)

Seriously, it's a common appearance for men of a certain age. :? What's the link to tiny Unix systems, though?
by chrisryall
Sat Apr 12, 2014 7:20 pm
Forum: Troubleshooting
Topic: Bluetooth to iPhone help!
Replies: 13
Views: 3997

Re: Bluetooth to iPhone help!

No experience of Pi bluetooth, but the recent techbasic release gives programable access to all the iPhone (or iPad) methods including bluetooth (and maps, compass, accelerometers, gyroscope, magnetometer, email ….)!

. http://www.byteworks.us/Byte_Works/techBASIC.html
by chrisryall
Tue Apr 08, 2014 9:21 pm
Forum: Networking and servers
Topic: Rpi as wireless access point for a church
Replies: 18
Views: 4396

Re: Rpi as wireless access point for a church

Surely a standard wireless router would be simpler, even cheaper? You need a router to plug the pi into anyway, and wifi often comes free. I'd change the password occasionally and post it above the hymn list to keep open to congregation, but force any local hackers to at least attend church? I think...
by chrisryall
Sat Apr 05, 2014 8:07 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: software +IDA opens up iOS objects/methods!
Replies: 0
Views: 479

software +IDA opens up iOS objects/methods!

I'd sort of given up on this one. People were reporting control interfaces via Bluetooth and WiFi on Androids. But I standardised to iGadgets last year, and due to Apple's, shall we say uncooperative nature … hope springs eternal as they say ;) Then while insomniac this early morning I found TechBas...
by chrisryall
Fri Apr 04, 2014 8:52 pm
Forum: Off topic discussion
Topic: Holy smoke!
Replies: 8
Views: 1699

Re: Holy smoke!

The concertina player in my old Morris team was a "proper" electrical engineer, controlling 100MW power stations … using early "4-bit" microprocessors (believe it or not). One day on a test "sudden disconnect from grid" it all went wrong, 150MW of superheated steam flowing into the turbines with no ...

Go to advanced search