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by Chris.Rowland
Mon Feb 13, 2012 9:43 am
Forum: Other projects
Topic: Arduino-like custom breakout board
Replies: 21
Views: 8195

Re: Arduino-like custom breakout board

Would it be worth using the Arduino pin "standard" so that shields designed for the Arduino could be plugged in?  That would give the ability to hook up a lot of existing hardware and peripherals for no additional work.

Chris.
by Chris.Rowland
Sat Feb 11, 2012 10:53 pm
Forum: General discussion
Topic: Isn't this all too complicated?
Replies: 230
Views: 39350

Re: Isn't this all too complicated?

<t>The idea of giving people a command line prompt to start with bothers me as well.<br/> <br/> It may be heresy but I find the instant gratification of Visual Basic or C# very attractive.  I can drop controls onto a form and with a few clicks write a few lines of code to do the work.<br/> <br/> Is ...
by Chris.Rowland
Sat Feb 11, 2012 10:27 pm
Forum: Off topic discussion
Topic: What was your first computer?
Replies: 408
Views: 151337

Re: What was your first computer?

<t>My first computer was whatever Lancaster Uni was using in 1967.  Ferranti rings a slight bell, but the make doesn't really matter. I was taught Algol 60.<br/> <br/> Coding was done by filling in coding sheets and girls would type it onto paper tape - even for undergraduates. If you really worked ...
by Chris.Rowland
Sat Feb 11, 2012 9:21 am
Forum: General discussion
Topic: New here and feeling a bit overwhelmed
Replies: 36
Views: 6942

Re: New here and feeling a bit overwhelmed

The house is flooded because you didn't turn the tap off

Chris
by Chris.Rowland
Thu Feb 09, 2012 10:10 pm
Forum: General discussion
Topic: Dryrun on shop
Replies: 21
Views: 5022

Re: Dryrun on shop

<t>If you want to check that the ordering and payment method you are planning to use for the pi will work then make a real test purchase of the labels.<br/> <br/> If it works Liz will put your labels in a bag, send then to you, and extract the money from whatever payment method you choose. (Possibly...
by Chris.Rowland
Tue Feb 07, 2012 10:43 pm
Forum: General discussion
Topic: When does the second production batch start
Replies: 34
Views: 6599

Re: When does the second production batch start

We all need to bear in mind this isn't a new kidney...

Chris
by Chris.Rowland
Tue Feb 07, 2012 5:52 pm
Forum: General discussion
Topic: When does the second production batch start
Replies: 34
Views: 6599

Re: When does the second production batch start

<t>Trying to expand too quickly has caused cash flow problems that have killed companies.<br/> <br/> There's all sorts of things that can go wrong leaving the company holding a vast amount of unsold stock that has to be paid for.  Credit runs out and they go belly up.<br/> <br/> My guess is that the...
by Chris.Rowland
Mon Feb 06, 2012 6:06 pm
Forum: General discussion
Topic: Adding more voltage to r-pi?
Replies: 11
Views: 2361

Re: Adding more voltage to r-pi?

I wonder what the shortest time will be between someone getting a RP and it getting fried?

It may be worth pointing out that while it's robust to being bricked by software, electrically it will be no more robust than any other piece of electronics.

Chris
by Chris.Rowland
Wed Feb 01, 2012 7:47 pm
Forum: Other projects
Topic: Programatically lock SD Card to hardware unit?
Replies: 28
Views: 6050

Re: Programatically lock SD Card to hardware unit?

<t>From a look at the SD card on Wikepaedia - the font of all knowledge - there's part of the SD card that has some sort of DRM protection.  Maybe that could be used to protect a special SD card so the magic sauce can't be copied.<br/> <br/> Many years ago I was asked to put some protection in our s...
by Chris.Rowland
Sun Jan 29, 2012 8:14 pm
Forum: General discussion
Topic: 3d printer
Replies: 2
Views: 1620

Re: 3d printer

<t>Most of the cost in a 3D printer is in the hardware - motors and the physical stuff that causes them to put things in the right place.<br/> <br/> The Arduino may be better for the low level task of controlling the motors and extruder because it doesn't have an OS to get in the way of that low lev...
by Chris.Rowland
Fri Jan 27, 2012 10:55 pm
Forum: General discussion
Topic: How Does It Boot?
Replies: 16
Views: 4897

Re: How Does It Boot?

<t>I'm plugging the USB HDD into a laptop.  It doesn't work unless I have the power supply plugged into a second USB port.<br/> <br/> AFAIK the USB standard specifies a maximum of 500 mA so that's where I'm getting the 1A from - 2 * 500 mA. I'm running a 20G HDD so how that compares with your 0.5T d...
by Chris.Rowland
Fri Jan 27, 2012 10:37 pm
Forum: Staffroom, classroom and projects
Topic: BASIC - more harmful than useful?
Replies: 899
Views: 139174

Re: BASIC - more harmful than useful?

<t>My first language was Algol 60, then Fortran, ratfor, Basic, Assembler (Z80, 6402, DG Nova, 80186 some AMD DSP etc), C, VB, VB6, C++ (if there's no alternative) C# and WPF. There's also been some Pascal and Delphi.  That's in the course of being involved in software since 1967.  And I've a vague ...
by Chris.Rowland
Fri Jan 27, 2012 9:39 pm
Forum: General discussion
Topic: Future Plans
Replies: 31
Views: 6766

Re: Future Plans

What about a BLT?

Chris
by Chris.Rowland
Fri Jan 27, 2012 9:23 pm
Forum: General discussion
Topic: How Does It Boot?
Replies: 16
Views: 4897

Re: How Does It Boot?

<t>The USB HDD I have has a 5V power supply as well as a USB connection.  It's always needed the 5v power supply but that can be provided from a second USB connection.<br/> <br/> I guess that means the HDD needs about 1A so can't be powered directly from the Pi but can run if it's got it's own PSU.<...

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