About Display/Screen

This page contains an archive of all entries posted to Gadget Master in the Display/Screen category. They are listed from oldest to newest.

Delay circuits is the previous category.

FPGA is the next category.

Many more can be found on the main index page or by looking through the archives.

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Display/Screen Archives

July 12, 2007

Build your own Interactive Multitouch Display

Now, we would hate for you to think that we are easily impressed.

But we are.

If you haven't got the £5,000 to buy your very own Microsoft Surface, just follow the lead of 'Turkey Tek' and build your own.

Continue reading "Build your own Interactive Multitouch Display" »

September 17, 2007

Build your own printer cable LCD display

Here are the full build instructions to help build your very own LCD display for your printer cable.

LCD%20display.JPG

Continue reading "Build your own printer cable LCD display" »

October 3, 2007

Digital displays the Best Damn Thing

Digital displays incorporating a new way of delivering video called ITrans have been used by Virgin Megastores in London and Glasgow to boost sales of Avril Lavigne's latest CD "The Best Damn Thing".

avril.JPG

Continue reading "Digital displays the Best Damn Thing" »

July 7, 2008

Charlieplexing - Cylon-eyes and Holoclocks

charlieplexing 2.jpg
Charlieplexing. The verb is an electronics technique apparently named after one Charlie Allen, an engineer at Maxim.

It involves minimising the use of I/O pins on a microcontroller to drive a maximum number of LEDs, for example using the same pin to alternate between driving digits (cathodes) and segments (anodes).

You can read an entry on Charlieplexing in Wikipedia. I quote:

"Much like standard multiplexed displays, all the cathodes of any particular digit are connected together to a single I/O pin which remains low. Much like standard multiplexed displays, each anode of each LED of a particular digit is tied to the current-limiting resistor of a different I/O pin.

Continue reading "Charlieplexing - Cylon-eyes and Holoclocks" »

November 10, 2009

Steve Wozniak's Nixie tube wrist watch



Long term readers of this blog know we have featured Nixie tube clocks a couple of times (see here and here), but this is the first one for a wrist watch. And worn by Apple co-founder Steve Wozniak, no less.

Continue reading "Steve Wozniak's Nixie tube wrist watch" »

February 5, 2010

Sleep Remaining laser clock display

a laser alarm clock.jpgWe've all been there. You wake in the middle of the night, it's still dark, but you are not sure how many precious hours you have before work (or minutes, even, in the winter).  

For some (not me) a clock will be clearly visible, but Gadget Master Nirav Patel needs glasses and the world can seem blurry without them....

Yes, he could stretch to put on his glasses and then clock the time (waking himself up in the process) or he could - as an ingenious inventor - create a device for displaying on the ceiling how much time remains for sleep, using a Lego-housed Arduino-based laser device.

(For more Arduino-based laser shows, see also - Build your own laser harp)

Continue reading "Sleep Remaining laser clock display" »

February 22, 2010

Portatouch multitouch performance

Thanks to Electronics Weekly's Technology Editor, Steve Bush, for flagging this one - the portable, self-built "porta~touch" multitouch display system.



As you can see from the intro screen, elements of the system include:

Continue reading "Portatouch multitouch performance" »

April 22, 2010

Video: Hacking into Vodka bottle LED displays

How do you hack a Vodka bottle? Well, we showed how to hack a calculator a couple of weeks ago and this time the challenge is for Medea Vodka bottles, which feature a scrolling blue LED display...

I don't believe this brand is on sale in the UK - tho I'm no vodka connoisseur - but it's an interesting post from Hackaday (via this Dutch site) challenging people to rise to the challenge. What follows is the official instructional video for programming the display.



Continue reading "Video: Hacking into Vodka bottle LED displays" »

June 8, 2010

iPhone 4? Just another glowing rectangle!

The Onion rectangles.jpg
As another desirable iPhone comes, and then passes me by, out of reach, I need cheering up. And right on cue, The Onion is on the button.

One for all gadget lovers, and not just those who don't posses a Super AMOLED or 960-by-640 backlit LCD display, check out its news report - 90% Of Waking Hours Spent Staring At Glowing Rectangles

It begins:

Continue reading "iPhone 4? Just another glowing rectangle!" »

September 8, 2010

The Worduino - Spelling out the time

word clocks.JPGHow cool is this? It is an Arduino project dubbed The Worduino, from the excellent WyoInnovations blog.

Basically, it is a clock that tells the time in highlighted words rather than the traditional dial.

You can see some pictures of the big and little word clocks and there are full instructions for assembly, in PDF form.

Anool writes:

Continue reading "The Worduino - Spelling out the time" »

November 4, 2010

Kindle 3G competition

Amazon Kindle JPG.jpg
Time for the last competition of 2010, and the prize is a good one!

The team in the office have been drooling over this one - its light weight, the e-ink display, the user interface.... It's an Amazon Kindle that's up for grabs, for one lucky reader who wants to get to grips with e-books. Or an Kindle 3G Wireless Reading Device with Free 3G + Wi-Fi, as Amazon describes it.

Here's the November/December compo!

The prize question

Continue reading "Kindle 3G competition" »

November 11, 2010

Video: BeagleBoard-XM drives video wall

Room had to be found on the Gadget Master blog for this one, a quick video we filmed at Hall A3 (Displays) at Electronica.

We know about the power of the mighty BeagleBoard - see Watch out, there's a new BeagleBoard about and A DIY Android Gadget Starter Kit, for example - and here is another impressive demonstration.



Continue reading "Video: BeagleBoard-XM drives video wall" »

January 28, 2011

Video: DIY 12-foot LED matrix display

There's no mistaking the messages left in the office by one very ingenuous Gadget Master, "kitesurfer". He has built a 12-foot long and 20" high LED matrix, to display text across 512 blue LEDs, which sit behind some frosted acrylic.

Apparently the display runs the length of his home office and his website gives full details and pictures of the kit, so make sure you check out his website. But note - he stresses this - the rig is not for sale!


Continue reading "Video: DIY 12-foot LED matrix display" »

September 28, 2011

Megapad modding brings Android to the kitchen table



We've previously mentioned a DIY Android Gadget Starter Kit and an Android IO breakout board, but now check out the Megapad, a large custom built touchscreen Android tablet built by one Martin Drashkov.

Measuring 23-inches, the screen supports some Minority Report-style swishing with Google Earth, and the whole device was built - in his kitchen - for less than $600.

Noting the success of touch computing, he anticipates that bigger will be better, enabling use by two people...

Continue reading "Megapad modding brings Android to the kitchen table" »

March 2, 2012

When you can't find the camera you want

GadgetMasterLegoCamera thumb.jpgGoing well beyond the call of duty, freelance photographer CF Salicath has built himself a camera out of Lego.

The twin-lens reflex design is called the Legoflex.

Not only is it not a simple pin-hole design - it has proper lenses, but it also has a winder mechanism for its 120 roll film, and a focal plane shutter.

Continue reading "When you can't find the camera you want" »