DIY Quadcopter: Build Your Own Quadcopter III

Last time we talked about the Frame (house all the other components), Motors (flying power), Propellers (flying power maker). These components are relatively simple and it is easy to understand how they work and what they will do to let the quadcopter fly. This time we are going to talk about some complex components. But first, let’s start with something simple.

Battery

Since we need something light to be our quad’s component, the Li-Po battery becomes our only choice. Maybe some people would say NIMH is cheaper, but sadly, the NIMH does not have the right weight. The other reason we choose LIPO is because its current ratings meet our requirement.

Next we need to know something about the battery voltage. Normally LIPO battery can be found in single cell which is 3.7V. Usually we group them to 11.1V, which means 3PCS pack as 1 pack. We can DIY different battery voltage by the same way.

As for the battery capacity, you need to do some calculations on:

  • Ÿ   How much power your motors will draw?
  • Ÿ   Decide how long flight time you want?
  • Ÿ   How much influence the battery weight should have on the total weight?

A good rule of thumb is that you with four EPP1045 propellers and four Kv=1000 rated motor will get the number of minutes of full throttle flight time as the same number of amp-hours in your battery capacity. This means that if you have a 4000mAh battery, you will get around 4 minutes of full throttle flight time though with a 1KG total weight you will get around 16 minutes of hover.

The battery discharge rate is also an important factor we should notice, which also be called C-value. The C-value together with the battery capacity indicates how much current can be drawn from the battery.

Another important factor is the discharge rate which is specified by the C-value. The C-value together with the battery capacity indicates how much current can be drawn from the battery.

Maximum current that can be sourced can be calculated as: MaxCurrent = DischargeRate x Capacity

For example if there is a battery that has a discharge rate of 30C and a capacity of 2000 mAh. With this battery you will be able to source a maximum of 30Cx2000mAh = 60A. So in this case you should make sure that the total amount of current drawn by your motors won’t exceed 60A.

ESC – Electronic Speed Controller

The brushless motors are multi-phased, normally 3 phases, so direct supply of DC power will not turn the motors on. That’s where the Electronic Speed Controllers (ESC) comes into play. The ESC generating three high frequency signals (with different but controllable phases) continually to keep the motor turning. The ESC is also able to source a lot of current as the motors can draw a lot of power.

The ESC is an inexpensive motor controller board that has a battery input and a three phase output for the motor. Each ESC is controlled independently by a PPM signal (similar to PWM). The frequency of the signals also vary a lot, but for a Quadcopter it is recommended the controller should support high enough frequency signal, so the motor speeds can be adjusted quick enough for optimal stability (i.e. at least 200 Hz or even better 300 Hz PPM signal). ESC can also be controlled through I2C but these controllers are much more expensive.

When selecting a suitable ESC, the most important factor is the source current. You should always choose an ESC with at least 10 A or more in sourcing current as what your motor will require. Second most important factor is the programming facilities, which means in some ESC you are allowed to use different signals frequency range other than only between 1 ms to 2 ms range, but you could change it to whatever you need. This is especially useful for custom controller board.

(To be continue…)

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DIY Quadcopter: Build Your Own Quadcopter II

In our last article we just introduced 3 different ways to build a personal quadcopter. It is important to decide where you should start your road of DIY quadcopter according to your own situation. However, no matter which way you choose, it is necessary to understand these basic parts of a quadcopter or multicopter.

Last time we just have a simple look of these basic parts, to know what they usually look like. This time let’s talked them in details.

Frame

Every quadcopter or other multirotor aircraft needs a frame to house all the other components. The Frame should be rigid, and be able to minimize the vibrations coming from the motors. So what you need to consider is size, weight and material.

A quadCopter frame consists of two to three parts which don’t necessarily have to be of the same material:

  • Ÿ   The center plate where the electronics are mounted
  • Ÿ   Four arms mounted to the center plate
  • Ÿ   Four motor brackets connecting the motors to the end of the arms

Materials you should consider:

  • Ÿ   Carbon Fiber
  • Ÿ   Aluminum
  • Ÿ   Wood, such as Plywood or MDF (Medium-density fiberboard)

Although it is expensive, we highly recommend carbon fiber here because of it is the most rigid and vibration absorbent out of the three materials. The other two materials have their own disadvantage, which is not good for a quadcopter.

As for arm length, the term “motor-to-motor distance” is sometimes used, meaning the distance between the center of one motor to that of another motor of the same arm in the QuadCopter terminology.

The motor to motor distance usually depends on the diameter of the propellers. To make you have enough space between the propellers and they don’t get caught by each other.

Brushless Motors

The reason we mentioned about brushless motors here is because this kind of motor is most effective motors for DIY Quadcopter. Generally brushless motors spin in much higher speed and use less power at the same speed than DC motors. Also brushless motors don’t lose power in the brush-transition like the DC motors do, so it’s more energy efficient.

Brushless motors come in many different varieties, where the size and the current consumption differ. When selecting your brushless motor you should take care of the weight, the size, which kind of propeller you are going to use, so everything matches up with the current consumption. When looking for the brushless motors you need to notice the specifications, especially the “KV-rating“.

The KV-rating indicates how many RPMs (Revolutions per minute) the motor will do if provided with x-number of volts. The RPMs can be calculated in this way: RPM=Kv*U An easy way to calculate rating of motor you need.

Make sure you buy the counter-rotating to counteract the torque effect of the props.

Propellers

On each of the brushless motors there are mounted a propeller.

You might not have noticed this on the pictures, but the 4 propellers are actually not identical. You will see that the front and the back propellers are tilted to the right, while the left and right propellers are tilted to the left.

Like we mentioned before, 2 rotors rotates in the opposite directions to the other two to avoid body spinning. By making the propeller pairs spin in each direction, but also having opposite tilting, all of them will provide lifting thrust without spinning in the same direction. This makes it possible for the Quadcopter to stabilize the yaw rotation, which is the rotation around itself.

The propellers come in different diameters and pitches (tilting). You would have to decide which one to use according to your frame size, and when that decision is made you should choose your motors according to that

(To be continue…)

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DIY Quadcopter: Build Your Own Quadcopter

Introduction

After a long time development of quadcopter technology, we can now enjoy many cheap quadcopters. Like Syma, WLtoys:

We can buy the READY TO FLY quadcopters online and we can fly them when we take them out of the box.

As a hobby, flying a quadcopter indeed brings us a lot of fun, however, when we tired of just flying them, what fun can we get from this hobby?

The answer is the topic today: We build a quadcopter ourselves. We decide what our quadcopter looks like and what functions they have.

There are three kinds of ways that we can build a quadcopter ourselves.

Kits

Kits means that you can buy a package that contains all the basic parts of a quadcopter, you don’t need to spend too much time on finding the parts. Also it is great for people who don’t have much time to understand which components will work well together.

The components in a kit are usually carefully matched and pre-soldered making them easier to build.

DIY

On the contrary, the DIY means you need to find all the quadcopter parts yourself. It will take more time and perhaps even appear to cost more initially. However, it will be much cheaper to replace a part since you have lots of choices and are not forced to buy a part made by the kit manufacturer.

Also, you can buy and configure any flight control board with whatever features you require. This gives you total flexibility of which features you need and want. It also allows you to change boards as your demands change. Here are the basic parts of DIY the quadcopter.

  • Frame

  • 4 Motors

  • 4 ESCs

  • 4 Props

  • 1 Flight Controller

  • 1 Lipo Battery

  • l  Transmitter and Receiver

  • Miscellaneous Parts (Wire, connectors, etc)

  • l  Battery Charger

The Third Situation

OK, maybe you don’t have the talent on rebuild a quadcopter or the mood to collect those quadcopter parts separately. There is also a choice for those guys: we can buy the quadcopter which provides DIY version. For example, the Walkera Runner 250 Series, which has one basic version and other three kinds of DIY versions.

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New Revolution and More playability of Hot UC40 Projector

There is no doubt that smartphone has played a more and more important role in both our working and daily life. It is easy to be seeing that we human being are using cellphone everywhere and everytime. Yes, cellphone has brought us so much fun and convenient. Can you imagine a life without cellphone? Can you imagine a so-called multiple-media without Mobile Application Port? You must say “Are you kidding me?”

Today, I highly recommend you a star product-UC40 Mini Pico Projector. The performance parameter of this projector has been over talked for so many times. This time, let us find some details about the extended function of it that really makes this machine stand out of the rest. It featured with abundant interface and excellent extensibility. It has these interface and multi-functions:

1. HDMI.You can easily connect with a computer, DVD, XBOX one, PS4 and other devices conforming to the HDMI output& support MHL function. You also can Easily connected with mobile phones support MHL functions.  And can freely expand a variety of peripherals such as Android Smart TV Stick, Wireless same screen, etc.

2. 3-in-1 AV interface is able to connect with DVD and STB system.

3. SD Card Slot and USB interface can support USB2.0 and Mobile Hard Disk.

4. It Comes with 5V output port make  you enjoy the big screen while supplying power for your mobile device like mobile,ipad etc.

(Connect with HDMI Effect Picture)

You can use it to connect with almost Digital Equipment such as Desktop Computer, Tablet PC, TV set-top box, Digital Camera, PSP, MP4/MP5, VCD/DVD, Laptop, as well as Smartphone. Here we can through the picture have a look at how it works:

(Connect with Samsung Smartphone through MHL Cable Effect Picture)

(Connect with iPhone6 through HDMI Adapter + HDMI to HDMI Cable Effect Picture)

In general, this projector represents the developing direction of the future projector industrial. And UC40 Mini Pico Projector has already made a big step among the rest projector producers and it does have a excellent performance in both Playability and Expansibility. Users really will get more fun and convenient from this machine, especially the heavy users of cellphones. 

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【Perfect Match】UC40 Mini Pico Projector with USB Powered Super-bright 10-LED Touch Switch Night Light

Nowadays, UC40 this featured as Simplified Micro Projector Mini Pico Projector has hit a big time. It carves a niche in the market by its unparalleled high cost-efficiency with reliable product quality.

The right saddle must be set on the right horse. The excellent projector must be equipped with the best of the best accessory. As we all know, the low Luminous Intensity of the projector has been criticized for a long time. This projector itself has high output brightness which can be up to 800 lumens. It is 3 times brighter than competitive models, while with the  USB Powered Super-bright 10-LED Touch Switch Night Light, it will create even more vivid and clear color and image performance and bring you perfect  movie-viewing experience.

The USB powered 10-LED energy saving light lamp with touch switch has following fantanstic features:

  • Human ergonomic design, 360 degree rotated freely
  • Powered by USB, plug and play
  • Super bright
  • Low power consumption, energy saving
  • Aluminum material,  compact and sturdy to use
  • Mini and portable size, light and easy to carry

Here, I’d like to explain the role of this powerful touch lamp.

Why do I say a big role in this light, let me explain to you:

This projector is not only suitable for home theater, also, is very suitable for office meetings. When we are in a dark environment to turn on the projector, and you may encounter some problems, such as you cannot see the projector key operation, or if you want to check the accessories of the projector in the dark, at this time, this touch lamp is you much needed, you can feel this lamp is give a big help for you.

More powerful is that this light is by touch-sensitive: touch for light up, touch for light off.

It is undeniable that when we are in a dark environment, there will always want to have lighting.

We all hope you can use it to light up for prepare, light off for enjoy

This 10-LED touch switch light surely will be the perfect match for your UC40 Projector and make your dream of having you own home theater become into reality.

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Tronfy U40 Multi-media Mini 800 Lumens Portable LED Simplified Micro Entertainment Home Cinema Projector With 1080P FHD Decoding HDMI

A Simplified Micro Projector is Here!

What is a  Simplified Micro Projector?

SMP is short for simplified micro projector. It is one kind of projector which has simplified system structure design, but with multifunction. (Also means easy handing micro projector.)
What can we do with a Simplified Micro Projector?

Features 800 x 480 native resolution, support 1080P HD input the scale of screen is 4:3 or 16:9, delivers great image quality.
High output brightness can be up to 800 lumens, 3 times brighter than competitive models.
● Picture switch from 16:9 and 4:3 to meet your different demands.
Manual focus adjusting get picture from 34 to 130 inches, and the distance of projection is from 1.07 to 3.8 meters.
● Comes with keystone correction function to get wonderful picture and clarity, easy image adjustments.
Increase multiple ports, including AV, HDMI, SD card, earphone, USB, directly playing SD card and USB disk files.
● LED lamp, works for over 20000 hours, never need to replace.

How does a  Simplified Micro Projector make it happen?

Simplified micro projector usually uses LCD as the image system and LED as light source, which ensures high brightness can be up to 800 lumens and long LED lamp life up to 20000 hours. In addition, it includes simple setup with HDMI connectivity, easy-slide keystone correction and more, for a new level of flexibility and convenience. No matter where you meetings take you, you’ll be ready with the UC40.

This high definition portable LED Projector is specially designed for Home theater, Business conference, Entertainment, Education training, etc. It will bring you munch convenient and unexpected experience. no matter in your daily life or in your work.

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Android M has arrived: here’s what you need to know

The Android M developer preview was recently launched at Google I/O 2015 in SanFrancisco. At the conference, Google senior VP of Products Sundar Pichai said the company had “gone back to basics” with this new version of Android. While Android Lollipop introduced a new visual aesthetic, Android M brings some much-needed stability and usability improvements which might not be as eye-catching, but may prove to be significant additions for a while to come.

Buy Android 5.0 tablets >>

1. App permissions

First up, app permissions. As had previously been speculated, app permissions have been overhauled in Android M, with users now being able to choose to accept or deny individual permissions as they see fit. Permissions have also been simplified.

Permissions will now be requested the first time you try to use a feature, not at the point of installation. “You don’t have to agree to permissions that don’t make sense to you,” Burke said, and used WhatsApp to give an example of how this works.

If you want to record a voice message, WhatsApp will prompt you with a one-time request for permission to use your mic: if you still wish to give it access and record the message, you can, but you don’t have to. Android M is giving users greater control of the information apps can access, and this is a truly positive step forward for Android.

You can modify the permissions granted to apps at a later date in your Settings, or you can view permissions by type and see which apps have that permission granted. It’s all about giving the user complete control over their Android.

2. Web experience

Google has been exploring trends in the way web content is consumed to provide a better user-experience when interacting with websites and apps. “Chrome Custom Tabs is a new feature that gives developers a way to harness all of Chrome’s capabilities, while still keeping control of the look and feel of the experience,” said Burke.

Chrome Custom Tabs will allow apps to open a customized Chrome window on top of the active app, instead of launching the Chrome app separately. This will provide a faster and more intuitive user-experience when navigating between apps and the web.

Chrome Custom Tabs supports automatic sign-in, saved passwords, autofill, and multi-process security to assist the integration of the app and web experience. So, for example, a Pinterest custom tab will have a Pinterest share button embedded in it, can include custom overflow menu options and doesn’t require the Pinterest developers to build their own web browser.

3. Fingerprint support

Google will “standardize support” for fingerprint scanners on phones running Android M. The new functionality will allow fingerprint scanners to be used not only to unlock phones, but to make purchases shopping in real-life or within Play Store apps.

Of course, your device will need a hardware fingerprint scanner to begin with, but with Google’s full support, expect to see these appear on many more devices in the future.

4. Mobile payments

Android Pay is Google’s new mobile payments system designed to make the checkout process easier and faster. Google is aiming to provide “simplicity, security, and choice,” with Android Pay, allowing you to use your existing credit cards to pay for products in more than 700,000 stores in the US.

Compatible with any device housing NFC capabilities (and running 4.4 KitKat or above), the Android Pay platform is being supported by American Express, Visa, Mastercard, and Discover, as well as carriers such as AT&T, Verizon and T-Mobile. Google’s response to Apple pay is here.

5. App links

“When a user selects a weblink from somewhere, Android doesn’t know whether to show it in a web-browser, or some other app that claims support for the link,” this was the problem facing the Google developers before Android M.

You may be familiar with the “Open with” dialogue box which appears when you try to open a link within an app on Android. You might be asked if you want to open a link with YouTube, or with Chrome, for example.

App links are being changed in M so that Android has a greater awareness of which apps can open content directly, instead of stopping users every time with the dialog box. If you tap a Twitter link in an email, for example, the Twitter app will open automatically instead of prompting you to ask if you want to use Twitter to view it.

This is almost a blink-and-you’ll-miss-it improvement, but it’s representative of Google’s attention to detail: Android M is probably going to feel more usable without the user ever understanding why.

6. Power and charging

Android M makes use of a new function known as Doze to improve device standby time. By using motion detectors, Android will recognize when devices haven’t been interacted with for a while, such as when a person is asleep or a device has been left on a table, to reduce background processes.

Burke said that Google tested two Nexus 9 devices, one running Lollipop and one running the Android M preview, and learned that M will provide up to two-times longer standby time. Even in Doze mode, your Android can still start alarms or notify you of priority notifications.

Android M also supports USB Type-C which provides faster charging, and lets users charge other devices with their phone.

Android M release date

The Android M Developer Preview is available now for Nexus 5, Nexus 6, Nexus 9 and Nexus Player, and the final version is due to launch in Q3, 2015.

What else is in new in Android M?

Auto Backup and Restore for Apps

Possibly the most interesting aspect of Android M not discussed in Google’s I/O keynote speech was Android Auto Backup and Restore for Apps. This feature will be used in conjunction with Google Drive to automatically backup app data and settings with a file size of 25 MB or less.

These backups occur no more than once per day, and run only when the device is idle and connected to Wi-Fi and power. The uploaded data does not count towards your Google Drive storage quota, and is encrypted.

If you lose your device or delete the app, your previous progress will be restored the next time you install it, and it even works with apps which are side-loaded or accessed through a third-party app store.

New app drawer

One of the most immediately noticeable visual changes to Android M is the new app drawer. This now scrolls vertically instead of horizontally, and is held against a white background, rather than a muted shade of your homepage wallpaper. Across the top of the menu you will see your four most recently used apps, and down the left-hand side are the letters of the alphabet.

Android M RAM manager

Google has introduced a new RAM manager to Android M with the aim of providing users with more accurate and comprehensible information regarding the maximum and average RAM usage of apps.

The menu can be found in Settings > Apps > Options (three dots button) > Advanced > Memory. Though it’s a little hard to navigate to, the page offers a far clearer insight into app demands, and the overall effect they will have on your device.

With a reading of an individual app’s RAM consumption, as well as how often it is running in the background, users will be able to better determine which apps should be removed in endless bid to increase device performance and battery life.

Android M even includes a simple bar at the top of the page displaying the current performance status of a person’s handset; if it says “good performance”, you’re likely running an efficient set of apps.

Adoptable Storage Devices

Though Google has in the past tried to step away from external storage use (the reason why none of its Nexus devices house a microSD card slot), it appears that Android M is striking a compromise.

Adoptable Storage Devices is Google’s new storage feature which essentially takes an external storage source (such as an SD card or USB drive) and formats it like an internal storage space. This means that app and personal data can be moved freely between a devices internal storage and its “adopted” storage source.

Adopted storage devices are wrapped in a layer of encryption to soothe security concerns and both microSD cards and USB OTG drives are currently supported.

Dark Theme

Buried within the Android M settings is a “Dark theme” option which transforms the menu background to a dark grey color rather than the normal pale shade. Currently this only affects the settings menu, not the app drawer, and its function is purely cosmetic. Still, it looks nice on our Nexus 6 and we hope it gets developed further.

Google Now

Google Now has been improved upon once again in Android M. Focusing on three key ares: being aware of different contexts, providing answers and helping you take action, Google Now is now smarter than ever.

Google Now’s context awareness understand over 100 million different places, so when you ask ”How far is it to there?” Google Now know exactly which ”there” you’re referring to. This awareness is compounded by Google’s Knowledge Graph, which understands one billion different entities, from sports teams to gas stations, TV shows to recipes.

Google Now is also rolling out a pilot program called ”Now on Tap” with 100 popular apps. Now on Tap provides Google Now-like content right where you are, without having to leave the app you’re in. So if you’re in Spotify and say ”Ok Google, what is his real name?” Now on Tap will know you’re talking about the musician you’re listening to and provide search results right there an then.

The same goes for content in emails. If someone asks you a question about a restaurant and to not forget something on your way home, Now on Tap can automatically pop up a restaurant card with Maps info, Yelp, OpenTable and the dialer, as well as offer to set a reminder for whatever it was you were supposed to not forget.

Google Chrome

Chrome is also leaner and faster than ever before. Initially revamped with Android One devices in mind, where stable and speedy internet connections are not always possible, Chrome’s new optimizations are set to arrive for everyone.

Chrome is now aware of network strength and can modify what you see as a result. For example, if your connection is bad, you might see colored squares rather than preview images in Search results. Optimized web pages will load four times faster and use 80 percent fewer bytes. You’ll also see a memory usage reduction of up to 80 MB. Chrome will also support offline mode.

Google Photos

As expected, Google pulled the wraps off its new Google Photos service. Previously a part of Google+, Google Photos is now standalone photo and video storage and sharing service that provides unlimited free storage for up to 16 MP photos and 1080p video. That is seriously impressive.

The Google Photos service stores high-quality compressed versions of your photos and movies but doesn’t store anything on your device, so you can search through thousands of photos at high speed and without bogging your device down with gigabytes of photos.

Popular features like Auto-Awesome and Stories are a key highlight, accessible through a new Assistant feature, which will automatically suggest creative uses of your images and footage. Through simple pinch gestures you can see tiled images for particular days, weeks, months or even years and then zoom right back in at any point you like.

Google Photos is also powerful for search, as you’d expect. You can search by People, Places, Things and Types, which are all automatically created, and you can drill down in each of those categories to see, for example, every picture you have of a particular person, all without ever tagging them.

Sharing is also a breeze. You don’t even need you contacts to have the Google Photos app. You can simply share a link that they can view in Chrome. If they are logged in they can easily download an entire album in seconds.

Are you impressed by what Google has been up to in Android M? What would you have liked to have seen?

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Little Giant Desktop Air Conditioning Fan Specs Review

Still suffer the scorching heat from the hot summer? This revolutionary evaporative cooling fan is the closest thing to a hand held mini air conditioner which can help you out. Using it outdoors or keep it indoors as a desk fan. It adopts evaporative cooling technology to provide gentle cool breeze which means it actually does not have air condition compressor in it, so it has much lower power consumption and lower voltage that is much safer for users. Compared with traditional air conditioning fan, mini desktop air conditioning fan is much smaller than it and thus takes less space and it’s more convenient to carry and move.

As for functions, mini air conditioning fans and tower fans share some similarities. They both provide gentle cool breeze that very close to the natural wind and have low power consumption. What makes mini air conditioning fan stands out is that it combines humidification and cooling function into one body. Just adds water to the water tank to soak the cooling filter. Ambient air is forced through the wet cooling filter and cools down. It has 350ml large tank for cooler air output. Humidify the air through the principle of water evaporation. It could make mist as a humidifier. 4 hours timing function and automatically power-off protection. Extreme low noise, super mute, great for working & studying. This product is designed with control panel and indicator lamp. 3 Wind-speeds Switch: high-medium-low (III-II-I). Adjustable air outlet blades allow angular adjustment of the cool breeze of air blowing.

It works well in dry and hot climates. Fully portable and mobile, take it literally anywhere you want.

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Asus ZenFone 2 Specs Review

The Asus ZenFone 2 is one of the very pleasant surprises unveiled at CES 2015. Asus really outdid itself in its signature value-for-money territory, outing a phone with 1080p display, 13 MP camera, fast 64-bit processor, and a hearty battery for two Benjamins in starting price.

Not only that, but the ZenFone 2 also has a version with 4 GB of RAM, making it the world’s first device taking full advantage of the new 64-bit hardware and software combo in Android land. Let’s make a quick run over the new specs of the ZenFone 2, trying to gauge our expectations for this promising device.

Design: taking a cue

Taking a little cue from LG, the ZenFone 2 sports a volume rocker placed fair and square on the back of the phone. By the company’s own calculations, its phablet has a screen-to-body ratio of 72%, which falls in the middle as far as 2014 devices are concerned, and offers the passable dimensions of 6 x 3.03 x 0.43 in (152.5 x 77.2 x 10.9 mm), though nothing extraordinary like the G3, for instance.

The ZenFone 2 has a chassis with a brushed metal texture, which again reminds strongly of the G3, and the dual tone flash on the back does nothing to disperse this impression. Asus isn’t being unoriginal, though, and promises a number of special “Transfusion” and “Illusion” models with rather unique shells – the former line combines two colors, while the latter offers some odd patterns to go with the phone’s shell.

Display

The Zenfone 2 display is a Gorilla Glass 3-protected, 5.5-inch panel with a flagship-standard resolution of 1080 x 1920 pixels, returning an excellent 403 pixels per inch count, and offering 400 nits of brightness. There’s really nothing to stand out in the screen specs department here, but for this starting price Asus’s offering is more than generous, and will fit most everyone’s needs.
Asus ZenFone 2 specs review

Processor and memory: first with 4 GB RAM and 64-bit mobile Atom

Asus has a long history with Intel’s mobile processors, and the ZenFone 2 isn’t breaking that trend, though it is now a trailblazer for the new 64-bit frugal Atom silicon. Namely, it sticks with the LTE-enabled Intel Atom Z3580 processor with four cores that can reach frequencies of up to 2.33 GHz, and a PowerVR G6430 GPU with OpenGL 3.0 support. This processor is proven to be both fast and frugal, so you won’t have any issues running the latest and greatest Android software on the ZenFone, including heavy 3D games.

The company’s biggest surprise with the handset is left for the memory department, though. The ZenFone 2 might start you off with 2 GB of RAM in the basic version, but the more expensive ones will come with 4 GB of RAM, making it the first smartphone announced with more than 3 GB of RAM, which the native 64-bit Android support, and the new 64-bit processors make possible now. Asus claims seven times faster gaming performance than the previous ZenFone edition, which has to count for something.

Interface: ZenUI

On the software side of things, the ZenFone 2 is making use of Asus’ proprietary ZenUI, slapped on top of the latest update to Android – 5.0 Lollipop. The company has worked a few new tricks into the OS, including actions and app shortcuts tied to gestures, special one-handed and “Kids” modes, and even support for custom themes and icon packs.
ZenUI has a variety of new features, including ZenMotion, SnapView, Trend Micro Security and ZenUI Instant Updates, which it now claims are part of life for 15 million users of Asus mobile devices around the globe.
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Asus ZenFone 2 Specs Review

The Asus ZenFone 2 is one of the very pleasant surprises unveiled at CES 2015. Asus really outdid itself in its signature value-for-money territory, outing a phone with 1080p display, 13 MP camera, fast 64-bit processor, and a hearty battery for two Benjamins in starting price.

Not only that, but the ZenFone 2 also has a version with 4 GB of RAM, making it the world’s first device taking full advantage of the new 64-bit hardware and software combo in Android land. Let’s make a quick run over the new specs of the ZenFone 2, trying to gauge our expectations for this promising device.

Design: taking a cue

Taking a little cue from LG, the ZenFone 2 sports a volume rocker placed fair and square on the back of the phone. By the company’s own calculations, its phablet has a screen-to-body ratio of 72%, which falls in the middle as far as 2014 devices are concerned, and offers the passable dimensions of 6 x 3.03 x 0.43 in (152.5 x 77.2 x 10.9 mm), though nothing extraordinary like the G3, for instance.

The ZenFone 2 has a chassis with a brushed metal texture, which again reminds strongly of the G3, and the dual tone flash on the back does nothing to disperse this impression. Asus isn’t being unoriginal, though, and promises a number of special “Transfusion” and “Illusion” models with rather unique shells – the former line combines two colors, while the latter offers some odd patterns to go with the phone’s shell.

Display

The Zenfone 2 display is a Gorilla Glass 3-protected, 5.5-inch panel with a flagship-standard resolution of 1080 x 1920 pixels, returning an excellent 403 pixels per inch count, and offering 400 nits of brightness. There’s really nothing to stand out in the screen specs department here, but for this starting price Asus’s offering is more than generous, and will fit most everyone’s needs.
Asus ZenFone 2 specs review

Processor and memory: first with 4GB RAM and 64-bit mobile Atom

Asus has a long history with Intel’s mobile processors, and the ZenFone 2 isn’t breaking that trend, though it is now a trailblazer for the new 64-bit frugal Atom silicon. Namely, it sticks with the LTE-enabled Intel Atom Z3580 processor with four cores that can reach frequencies of up to 2.33 GHz, and a PowerVR G6430 GPU with OpenGL 3.0 support. This processor is proven to be both fast and frugal, so you won’t have any issues running the latest and greatest Android software on the ZenFone, including heavy 3D games.

The company’s biggest surprise with the handset is left for the memory department, though. The ZenFone 2 might start you off with 2 GB of RAM in the basic version, but the more expensive ones will come with 4 GB of RAM, making it the first smartphone announced with more than 3 GB of RAM, which the native 64-bit Android support, and the new 64-bit processors make possible now. Asus claims seven times faster gaming performance than the previous ZenFone edition, which has to count for something.

Interface: ZenUI

On the software side of things, the ZenFone 2 is making use of Asus’ proprietary ZenUI, slapped on top of the latest update to Android – 5.0 Lollipop. The company has worked a few new tricks into the OS, including actions and app shortcuts tied to gestures, special one-handed and “Kids” modes, and even support for custom themes and icon packs.
ZenUI has a variety of new features, including ZenMotion, SnapView, Trend Micro Security and ZenUI Instant Updates, which it now claims are part of life for 15 million users of Asus mobile devices around the globe.
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