Dhmaka New Samsung’s first Windows 8 phone

11:07 AM | Labels:

Samsung’s first Windows 8 phone: A first look
ATIV S is a steeled up device that seems ready to take on the best
Its that step we have been curious about, whether the brand would take what is a hot seller in the Android space to Windows 8. Well, we have got a glimpse of the ATIVA S, Samsungs first step into the Windows 8 arena. Impressive looking device, we must admit, massive 4.3” screen [AMOLED HD of course], 1.5GHz Dual Core ARM-based Krait processor, 2300mAh battery with a 16GB core memory expandable via micro SD and an 8MB AF+ LED Flash camera.

We loved that full brushed aluminum feel which is carried across the ATIV Smart PC options as well. It gives the phone a very solid feel, and the responsiveness pointed to a device that should be taken seriously in the days to come. Make that very.

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Victorinox is the most secure memory stick?

10:51 AM | Labels:

Victorinox has launched a memory stick design which is, says the company, the most secure of its kind available to the public. The Victorinox memory stick uses several layers of security including fingerprint identification and a thermal sensor.

Any attempt to forcibly open it triggers a self-destruct mechanism that irrevocably 

burns its CPU and memory chip. The data can only be accessed through recognition of your fingerprint or the password.
In addition to these functions, the Victorinox Secure also has a bright LED light that will reliably show you the way in the dark. With this tool as well, it goes without saying that you will not have to do without the indispensable Swiss Army Knife functions, such as a blade, nail file with screwdriver end, scissors and key ring.

A new version of the device, which will employ e-paper to give users a read-out of its contents, is already in the pipeline. Victorinox say they wanted to create not only a product for today’s modern lifestyle but a new generation of memory stick that had all the values of functionality and reliability that the iconic Swiss Army Knife has come to represent.

Victorinox secure memory stick comes in 3 models: Secure 8 GB, 16 GB and 32 GB.

Victorinox Secure Memory Stick Tools and Specs

  • blade
  • nailfile with screwdriver
  • scissors
  • key ring stainless
  • pressurized ballpoint pen
  • Fingerprint module
  • Length 58 mm
  • Width 18 mm
  • Height 19.5 mm
usb victorinox knife victorinox secure memory stick victorinox secure pro
Read more on Victorinox products

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Eye-Fi x2 Wi.Fi wireless memory cards

10:45 AM | Labels: ,

Eye-Fi wireless memory cards deliver the next generation Eye-Fi experience in the form of the the award-winning Eye-Fi Pro X2. We are talking about faster-than-ever wireless photo and video uploads, improved performance, and virtually endless storage capacity with Endless Memory mode.

 makes your camera wireless
The Eye-Fi card is the 1st wireless memory card. It looks, stores media, and fits into cameras just like a regular SDHC card. On top of that, the Eye-Fi card has built-in Wi-Fi that uses your wireless network to effortlessly transfer photos and videos.

uses your home Wi-Fi network
Upon setup, specify which networks the Eye-Fi card uses to transfer your media. Add up to 32 networks for your card to use. The next time your camera is on within range of a specified network, your photos and videos will fly to your computer and to your favorite sharing site.

wireless memory cards
 
gets media where you want it
During the quick set-up, you customize where you want your memories sent. The Eye-Fi card will only send them to the computer and to the sharing site you choose.

memory + Wi-Fi = Eye-Fi
It all started with a very simple idea: what if photos could just fly to where you want them to be? That’s how a memory card with antenna and magical superpowers was born.

More about Eye-Fi…
wi-fi memory cards

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USB Function Generator Based on AD9833

11:37 PM | Labels:

One tool that I’ve been missing at my lab at home is function generator. They tend to be a bit expensive, so I haven’t bought one. I thought this might be a good opportunity to try and make one myself. I found a pretty common DDS (direct digital synthesis) chip, called AD9833. Then just strap a USB-enabled AVR micro there and maybe some analog electronics.


USB Function Generator Based on AD9833

 
This board doesn’t do any of the special analog magic to allow for variable amplitude or offset for the signal. The output is fixed to 0-4v. I’m planning to make another completely analog board for adjusting amplitude and offset. [Link]

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LED Heart PWM Fading

11:33 PM | Labels:

The concept for this small birthday present was to create a small heart shape with red LEDs and then to draw a heart shape underneath it on the PCB as a backdrop. Then a small processor was added to control the heart shape of LEDs for both fade and pattern control. The method of control that we use (PWM) allows us to save precious battery life, control the exact brightness of each specific LED and create this tiny but awesome project. [Link]


LED Heart PWM Fading schematic

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Current Controlled Boost LED Driver and Black Soldermasks

11:32 PM | Labels:

The MAX16834 is a neat little chip (it's not the only one, there are plenty of others out there) that allows high efficiency designs for LED string driving. It provides a platform for a Buck or Boost converter design, as well as brightness adjustment via analog/PWM input pins, as well as a fault output (in case of open/short circuits for example) and also diverse other functionalities that can be quite useful. [Link]


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A Li-Ion Battery Charger with Load Sharing - MCP73837

11:27 PM | Labels:

Batteries often serve as the main energy source for portable electronic devices. Although they depend on batteries, portable consumer electronic products, such as GPS devices and multi-media players, often consume energy directly from an ac-dc wall adapter or accessory power adapter (or “Auto Adapter”) when the battery is low or the device is in a stationary mode. Due to their cost effectiveness over their useful life, rechargeable batteries are often used for the power source of the portable electronic device.


Designing A Li-Ion Battery Charger with Load Sharing - MCP73837

 
Attributes such as “relatively high energy density” and “maintenance free” make Lithium-Ion (Li-Ion) batteries popular in the portable consumer electronic products. Refer to the application note, AN1088, “Selecting the Right Battery System For cost Sensitive Portable Applications While maintaining Excellent Quality” (DS01088) for characteristics of Li-Ion batteries. Some examples of how to properly design with Li-Ion batteries will be discussed in this application note. [Link]

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