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Finally there is content here. Check out the Tips and Tricks  and the Projects sections.

More to be added soon 

 
Minimal Arduino Circuit
Written by Wayne Stallwood   
Sunday, 08 January 2012

I thought as a template this might be handy for somone out there.

It's pretty much the minimum circuit you need to run up an Arduino project from a bare board, i.e. not using your Arduino board but just a ATMega chip with the Arduino bootloader.

The power and GND rails on the right of the chip can be safely omitted if you don't need the ADC. D1 can also be omitted if you are sure you aren't going to connect the supply round the wrong way. The Serial programming header can be omitted if you don't want to program the chip in situ.

LM7805 is comfortable supplying a small Arduino project at a supply voltage of 6.2 to 12V. However if your total consumption approaches 100mA then you need to fit a heatsink, limit the incoming voltage to about 8 or 9V or update the design to use a more efficient switching regulator. I'd recommend the later because linear regulators aren't cool. If your project is to be battery powered then I would move to switching regulators as a matter of course.

Here is the PDF

Here is the gEDA source file (this version has a hand build ATmega component so works with just a standard component library) Use it as a template for your project. Sorry Windows users gEDA is fully available for Linux and Mac but only experimental builds exist for Windows.

 

 

 

Last Updated ( Sunday, 08 January 2012 )
 
Obsessive Compulsive Hoarder
Written by Wayne Stallwood   
Wednesday, 21 December 2011

Can I just say that after watching "Obsessive Compulsive Hoarder" on Ch4 I am disgusted with the Councillor who didn't visit, the “Mental Health Expert” who walked away and reported Richard Wallace for fire safety, the Vicar who sat on the fence and the neighbours who first extended the long arm of the law rather than the hand of community.

However I am touched by the humanity of one Landscape Gardener who looked at the ill and damaged man rather than eyesore in the garden and hence made more progress than anyone else in over 30 years of one man's suffering. Bravo to that man and everyone he managed to turn around to provide positive help at the end.

 
Lenovo Thinkpad Colour Profiles
Written by Administrator   
Saturday, 15 October 2011

 

Installing a Color Profile for a Lenovo Thinkpad W510 in Ubuntu Linux

Download the monitor drivers exe file from Lenovo's Support Site

Ok won't unpack as an exe archive or cabextract...bah ok install wine and unpack it in that.

wine 79oi26ww.exe

Open the self extracting installer in wine and capture the files it writes out to Drivers/Win/Monitors within the .wine directory.

Bah first problem........get-edid is thowing a fit so I don't know what panel I have

Let's see what options are there for my resolution

grep -i 1920x1080 TPLCD.INF

Ok only 2 options LEN40B2 and LEN40B3 now I know I have the 95% Gamut display and one is listed in the ini as

%TPWFHD% = TPLCDWFHDG95.Install, Monitor\LEN40B2 ; 15.6" Wide FHD 16:9 LED B/L 1920x1080 Gamut95

Right so that's me then :)

Sooo lets look around in the same ini file and see what colour profile that really maps to shall we ?

grep -A 2 \\[TPLCDWFHDG95.Install] TPLCD.INF

[TPLCDWFHDG95.Install] ; Wide FHD 16:9 1920x1080 Gamut95

DelReg=DEL_CURRENT_REG

AddReg=HD1920, DPMS, ICMG95

Almost there, so it maps to the ICMG95 profile which in turn

grep -A 1 \\[ICMG95] TPLCD.INF

 

[ICMG95]

HKR,,ICMProfile,0,"TPLCD95.icm"

So there we go...that's the file I need to load into gnome-color-manager, Who said Linux wasn't easy huh ?

(update, this is now broken in Ubuntu 11.10 as you cannot load a Colour profile for an "unknown" display so now I really do need to fix edid)

 

Last Updated ( Saturday, 15 October 2011 )
 
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