Software design and embedded system tools.
Good information for software design
Software Engineers on Tap
Are you having problems with your internal software developers? It may be time to use an outside consulting service to get your important projects done. You don’t want to admit it, but you question the abilities of the internal software department. Your business needs a new critical software system completed and you don’t have the luxury of another failed software project.
In the past, you have communicated requirements and the software that was delivered missed the mark. Now you are faced with another project and you don’t want to turn it over to them again. It is time to look at outsourced software development.
Software engineering is a tough business and there are differences in skill levels. You need to make sure that the software engineers you choose for your project are experienced with newer platforms, languages, and technologies. Get software engineers that understand the changing online landscape and are committed to staying on the cutting edge of software engineering standards.
Carefully consider your choices for software development. They hired you to make the tough decisions. Your job is on the line. Failed software projects can ruin careers. Secure your position by outsourcing software projects to a top it consulting firm.
1010 Talk VoIp Plans
In times like this when the country’s economy is not getting any better but the people’s needs, like a homecare agency and other things including communication hasn’t changed, it is significant that they look for the most cost-effective way to make ends meet.
1010 Talk has just provided a solution for those who are always on call or staying on the line to reach out and communicate with people from different parts of the world. It includes plans which allow you to make unlimited calls both locally and abroad. It allows subscribers to easily manage their account online. It also includes free voicemail services like voicemail to email. Aside from this, they also support call transfers, three-way calling and call forwarding. Automatically, when there is an incoming call, the caller’s name will be displayed on the screen.
The plans can be Pay as you Go in which the users pay a very minimal amount every time they make a call. Below are the details for each plan:
- For $10 (India Premium): This is specifically for those who make calls to India where they get really low rates when calling either a land line or mobile phone.
- For $30 (Gold): This is useful to make as low as $.10 a minute per call to Israel.
- For $50 (Platinum): This offers the lowest rate available and this is the best option when someone always makes international calls.
These are great for people who usually make local and international calls and are complaining of how much they have to pay for telephone bills. Although not stated above, 1010 Talk plans actually start at five dollars a month. With this, the user will have to pay for every outgoing call he or she makes but can enjoy unlimited incoming calls. And not only that, they also offer different ways to give the subscribers’ money back. Watch out for the following on the site where you can also register for your preferred plan:
- 1010 Talk Discounts Coupons
- Coupon Codes
- Free Shipping Code
- Promo Offers / Promotional Codes
- Money Off Coupon Codes
- Deals, Gift Coupons
It is amazing how the company is very willing to give back the money of people who want to subscribe to 1010 Talk.
Single board computers
PROS AND CONS OF SINGLE BOARD COMPUTERS
Single board computers are those little circuit boards with the necessary components to be used as a digital computer. They are not commonly seen as they are and that is the reason why most of us can’t recognize them even if we have one in front of us. However, a lot of people have used single board computers because they are often embedded in gadgets like mobile phones, facsimile machines, GPS and other computer technological products.
Single board computer is what a printed circuit board with memory, a processor, input – output and a digital clock is called. Single board computers (otherwise known as SBCs) look a lot like the motherboard inside an ordinary personal computer but with a small design.
Because they are really small, they are also known as embedded computers. SBCs may come in different sizes, too. In fact, they are used from aero planes to sky rockets. In a more general sense, they can be present in toys or highly technological shoes. It is easy to assume that everyone has used single board computers without realizing that they exist.
Nowadays, smaller versions of computers are becoming very common. While they can accommodate full versions of operating system like Windows XP, SBCs have their own internal operating systems which don’t occupy much space. It is a fact that simpler operating systems mean not costing a lot. Without affecting processor performance, input/output, capability to store some files and its wireless connection, single board computers can do the basic functions of a personal computer.
The Good and Bad about Single Board Computers
Like any other products, SBCs have two sides, too. The decision to whether or not to employ the technology of single board computers is influence by how important the application is and how much it costs.
Below are the positive factors to consider:
- The high technological advancement nowadays have improved the capabilities of single board computers as they become smaller and less costly.
- Internet access using the SBCs has been made possible with the use of Wireless technology.
- Because of it is now available in the competitive market, better functions and variety of single board computers are also made available to the users.
- Highly developed computer technology presents dependability for industrial producers and the quality of their products using SBC’s.
On the other hand, employing SBCs may not be cheap or reasonable when incorporated with products of high volume and other applications. Also, there are some of these applications that need made to order sizes. Another possibility is that the input/output of certain devices are not compatible with single board computers.
Despite these possibilities, though. A lot of companies opt to use SBCs in the production of their high end devices rather than make their customized industrial single board computers.
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QT
Qt is defined as a cross platform application. It is a framework which is used in to develop application software. This application software is developed with the help graphical user interface. This cross platform application is also used in developing non graphical user interface programs. Some of the programs which use this application program are Google, Adobe Photoshop, Panasonic, Philips etc. This application uses the C++ language. But Qt uses a unique code generator with many macros to enhance the language. Qt can also be used in many programming language with the help of language bindings. It is used on many platforms and is also internationally recognised. This cross platform application was developed by Trolltech but they later sold this application to Nokia. The software libraries which use this application are advanced component framework, KDELibs, LibQxt etc.
QT demo application
Qt has always been available through a commercial license which allows the expansion of proprietary purposes without any restriction on licensing. In addition, Qt has been steadily made open through an increasing number of other free licenses. Currently, Qt is accessible under the General Public License (GNU); this provision makes it available for utilization for both free software and proprietary. Before the 1.45 version, the source code used for Qt was published under free Qt license. This was not really viewed as amenable with the free software description of the Free Software Foundation and neither by the Open Source principle as described by the Open Source Initiative. The reason behind this was that it did not allow the distribution of other modified versions.
In 1998, many controversies broke out when it was acknowledged that KDE’s KDE software compilation would undoubtedly become the leading desktop setting especially for Linux. Owing to the fact that it was founded on a Qt basis, many professionals who took part in the free software movement became apprehensive that an imperative component of one of a leading operating system would become proprietary.
Along with the release of the 2.0 version of the toolbox, the license was transformed to the QPL (Q Public License). QPL was a free software license but it was considered incompatible with GPL by the Free Software Foundation. Trolltech and KDE then sought out many compromises which would imply that Qt will not be regarded by any license more restrictive than QPL, even in the case Trolltech goes bankrupt. This major issue led to the invention of the free Qt foundation by KDE.
Power Line Communication
Power Line Communication is a fairly recent technology which is used to transfer data and establish means of communication at broadband speeds over transmission lines. The technology is widely also known as Power Line Telecommunication (PLT) or even Power Plus Communications (PPC). The technology uses advanced modulation technology which super imposes the data signal of high frequency over the low frequency power signal.
The research into PLC started off in the mid 1980’s in the band range of 5-500 KHz and was developed for only unidirectional communication but with time the system has been advanced to permit bidirectional transmission of data signal.
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Modbus protocol
Modbus
Modbus is a communication protocol which is used with programmable logic controllers. This communication protocol was published by a firm named Modicon in 1979. It has now become the most de facto standard protocol in the industry. Modbus is now very commonly used as a means to connect the industrial electronic devices. This protocol is very easily available as it is very extensively used. There are certain important reasons for the use of Modbus rather than use of other communication protocol. These are as follows:
1.This protocol is published openly and is royalty free.
2.It is an easiest way to setup an industrial network.
3.This protocol moves raw bits without any restrictions.
modbus webserver
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PIR motion sensor
PIR sensor
PIR or the Passive Infrared sensor is an electronic device which is used to measure infrared light radiating from a body in its field of view. The sensors are known as Passive since they do not have an in built IR source like active sensors and detect the natural radiation of the body.
All objects have a certain body temperature and at any specific temperature there is a certain radiation that the body emits, this is called the Black Body Radiation phenomenon. The infrared radiation is undetectable to the human eye but can be detected by a PIR sensor. These sensors are commonly used as motion detector that is whenever a different body of different temperature passes from ahead of it, there is an apparent change in the infrared frequency detected due to different temperature of each body. This application is widely used in security equipments and other photo sensing equipment. The PIR sensors are very often paired with other devices to increase their range to encompass even human body sensors.
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T-Engine and T-Kernel
T-engine hardware
T-Engine is project that standardize the hardware part of development board (not the standardization of main processor).
This project is well-known amongst the processor manufacturer company in Japan. You can buy T-Engine development kit directly from Japanese
microprocessor manufacturers such as Renesas Technology or from electronics company like Personal Media Corp.I list websites where you can
find T-Engine development board to buy as below…
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Interesting GPS locator module
GPS Locator is GPS used for indentify the position at the point that receiving the signal. This article is about the review of SUP500F ,
small GPS receiver module with built-in antenna.
SUP500F module receives signal from satellite in order to find the coordinate on the earth. It’s cheap and suitable for study or apply
for practical use. The antenna is located inside its body so you don’t need to connect addition external antenna to this module.
It’s small and can be enclosed in the box , however due to it use internal antenna , the efficiency of signal receiving will decrease if
you use it inside the building (it prefer to use outdoor).
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Wi-Fi Direct Technology
Monday , 25 October 2010 is the day that Wi-Fi direct certification was released to the mobile device manufacturer for the first time.
Wi-Fi direct is technology that developed from original Wi-Fi technology (it’s developed by
WiFi Alliance). This technology enable two mobile device to communicate to each other with ease
and safty.It’s also known as “bluetooth killer” because it can substitute for bluetooth technology
in every function of bluetooth. Otherwise it support more applications and more effective than
bluetooth technology.So bluetooth technology may come to an end in the next few years.
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