Reverse Engineering the Sony Ericsson Vivaz High Resolution 640 x 360 Cellphone LCD

Oh it is so shiny – it draws you in.

Hackaday

In our opinion, reverse engineering may be one of the best ways to tease your brain. [Andy] just did that by reverse engineering the Sony Ericsson Vivaz high resolution LCD (cached copy here). In his (very) nicely written article, [Andy] explains all the steps that led him to the result shown in the picture above. He started by finding the repair manual of the Vivaz, to discover that the display could be interfaced with 8080 type parallel signals. That meant that he could use a standard microcontroller without high speed buses to interface with it, in this case the STM32F4. Next in his adventure, [Andy] ordered the appropriate connector and took a more educated guess for the onboard microcontroller. A long Google search brought up the R61523 from Renesas. So he designed his breakout board, got it produced and a few hours later a nice picture was being shown…

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Plotterbot Hangs on your Wall to Work

Great stuff!

Hackaday

illuminatedposter

Looking for a fun and easy to do project to begin your foray into the fun-filled world of Arduinos? How about your very own drawing robot, aptly named, the Plotterbot!

We first heard word of this project when [Jay] submitted a giant plotted version of the Hack A Day logo for our Trinket contest, and we liked the Plotterbot so much we had to give it a featured article!

It’s a very simple design that uses an Arduino, 2 stepper motors, a servo motor (for pen lifting), some fishing line and various odds and ends you can probably find around the house. Realistically it will cost around $100 to build, but if you can salvage some parts from an old printer or scanner, even less!

[Jay] is currently releasing a series of detailed posts on his blog explaining the process of building one, but if you’re excited to start…

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Why You Shouldn’t Care About The All-Metal 3D Printed Gun

Hackaday

Solid Concepts, one of the world’s largest rapid prototyping outfits, just printed a gun. Unlike previous 3D printed guns like the Liberator, this 3D printed version of an M1911 is made out of metal. It’s a real gun, with rifling in the barrel – something the Liberator doesn’t have – and has the look and feel of what the US military has been using as a service pistol for decades.

The Solid Concepts 1911 was made using the selective laser sintering process, using a combination of stainless steel and nickel-chromium alloys. Every single part of the gun, save for the spring, was 3D printed without any machining. It’s an impressive feat of rapid manufacturing – firing .45 ACP rounds, this gun will see 20,000 psi every time the gun is fired. It’s already chewed through a few magazines so far, and it apparently shoots pretty well, to boot.

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