Wednesday, April 16, 2014

Free Download Avast Free Antivirus 2014 for Windows

Robometricschool. - In this session we will give you information software about Antivirus software that very useful to protect your computer or laptop from virus that very dangerous this day. In the first antivirus session we will give you information about Avast Free Antivirus 2014.

Figure 1. Free Download Avast Free Antivirus 2014 (CNET)

In this time, beside we will give you briefly information about Avast Free Antivirus 2014, we also will give you link to take Free Download Avast Free Antivirus 2014 from external site. So, please follow Robometricschool blog here.

Antivirus Description Software

According publisher of Avast Free Antivirus 2014, describe that Avast Free Antivirus 2014 continues our legacy. The entire avast! 2014 family includes a DynaGen-powered intelligent antivirus that streams micro-updates to your computer in real time, to catch new malware faster. Plus, you can fix current problems instantly, without uninstalling a previous antivirus. And it even has high-tech options like Remote Assistance. 

What's new in this version: 

  1. Stream Filtering -- fixed stability and compatibility issues, it's running smooth and fast now, so no more browsing problems 
  2. ARA/ARC -- implemented internal architecture improvements 
  3. Firewall -- the firewall should be more stable and with better compatibility with other network applications 
  4. Improved! Browser Cleanup - improved detection and removal of browser protectors, those tools that try to block us from getting rid of annoying toolbars 

Download Software 

And now we will give you link to take download Free Download Avast Free Antivirus 2014 for Windows. And please click below to take Free Download Avast Free Antivirus 2014 for Windows. 

Monday, April 14, 2014

Fuzzy Models and Algorithms for Pattern Recognition and Image Processing by JAMES C. BEZDEK - Free Download

Robometricschool. - Image processing in this time to be the popular study and research in this time. There are many field that can be helped with image processing research like for human body sensor or biometric. When we want to do image processing, we will not released with pattern recognition and also pattern classification. So you need good book to help you learn or study image processing and pattern recognition.

Figure 1. Fuzzy Models and Algorithms for Pattern Recognition and Image Processing

Fuzzy Models and Algorithms for Pattern Recognition and Image Processing that authored by JAMES C. BEZDEK is one a book that will help you to learn more about image processing and pattern recognition. And in this time we will give you global information about this book and then we will allow you to take Free Download uzzy Models and Algorithms for Pattern Recognition and Image Processing by JAMES C. BEZDEK.

Book Description

Fuzzy Models and Algorithms for Pattern Recognition and Image Processing presents a comprehensive introduction of the use of fuzzy models in pattern recognition and selected topics in image processing and computer vision. Unique to this volume in the Kluwer Handbooks of Fuzzy Sets Series is the fact that this book was written in its entirety by its four authors. A single notation, presentation style, and purpose are used throughout. 

The result is an extensive unified treatment of many fuzzy models for pattern recognition. The main topics are clustering and classifier design, with extensive material on feature analysis relational clustering, image processing and computer vision. Also included are numerous figures, images and numerical examples that illustrate the use of various models involving applications in medicine, character and word recognition, remote sensing, military image analysis, and industrial engineering.

And then you can take free download Fuzzy Models and Algorithms for Pattern Recognition and Image Processing by JAMES C. BEZDEK e-book using link that we given below;

Wednesday, April 9, 2014

Maybe Facebook Can Make Your iPhone Battery not Economical

Robometricschool. - As we know that Facebook is one iPhone application that very famous and popular used in iPhone. Although there are many application that can used in iPhone, but Facebook as social media can make our iPhone application only fully with Facebook.

Figure 1. Illustration (Detikinet)

But you must careful with Facebook application in your iPhone with your iPhone battery consumption now. Because Facebook application can make the bad result for your iPhone battery consumption that can make lower with this application.

According to Computer World, behind the scenes Facebook application will do a lot of activities, and it is certainly an impact on the battery quickly drains. 

Unfortunately some of the functions that run it are not very useful for many users, the example features VoIP calling services in the application. 

Facebook instant messaging application attached to it also accounts for the battery life of your iPhone quickly subsided. As quoted from Detikinet on Thursday (04/09/2014). 

But no need to panic, there are some easy steps that can be taken to minimize the battery consumption of a Facebook application, ie by turning off unnecessary features. 

For example, by turning off the function 'Background App Refresh' which is present in Facebook settings menu. Deadly alone claimed to have enough savings. Easy is not it?

So you must careful and beware with your Facebook application in your iPhone, please shutdown this application when not used in your iPhone. (Source:detikinet)

Thursday, April 3, 2014

Simple Dry Soil Detector for Plant Watering Circuit Schematic

Robometricschool. - One electronic implementation is used to plant water in our garden or detect dry soil. With electronic circuit schematic that very simply you can build electronic device that can detect dry soil that it will very useful for plat watering in your garden or etc.

In here we will show you one simple Dry Soil Detector for Plant Watering Circuit Schematic like in figure 1 below.

Circuit Schematic

Figure 1.  Dry Soil Detector for Plant Watering Circuit Schematic 

Component List
  1. R1 = 150
  2. R2 = 50K
  3. Q1 = C828
  4. D1 = LED
  5. BZ = Buzzer


Dry Soil Detector for Plant Watering Circuit Schematic like in figure 1 above is very simple circuit that very helpful to you. The circuit works as follow:
  1. The circuit work based on switching transistor depending from input transistor bases. 
  2. When probe A detect the dry soil it will make highest resistance on transistor bases, and make the transistor work like switch off and the buzzer BZ turn off and LED not light.
  3. And when Probe B detect cool soil it will make low resistance on transistor bases and make transistor triggered on and make transistor like switch on. With this condition the Buzzer BZ on and LED light.
  4. To adjust the sensitivity we can adjust the R2 as the voltage divider in transistor bases that will make transistor on or off. 

Saturday, March 29, 2014

Introduction of Advanced RISC Machine (ARM) Cortex M3

Robometricschool. - Maybe you are still foreign with the term of ARM microprocessor. It is because that ARM has familiar in 2007. In 2007, approximately 98% of the one billion mobile phones sold use at least one ARM processor. And in 2009, ARM processors dominate about 90% of the overall market 32-bit RISC processor. ARM processors are used in various fields such as general electronics, including PDAs, mobile phones, media players, music players, handheld game consoles, calculators and computer peripherals such as hard disk drives and routers.

Figure 1. Conexant ARM (wikipedia indonesia)

The History of ARM Microprocessor 

ARM is a processor with 32bit RISC instruction set architecture (Reduced Instruction Set Computer) developed by ARM Holdings. ARM stands for Advanced RISC Machine from (previously known as the Acorn RISC Machine stands). At first ARM processor developed for the PC (Personal Computer) by Acorn Computers, prior to Microsoft's dominance of Intel x86 processors in IBM PC compatible cause Acorn Computers insolvent.

After insolvent, Apple Computers (now Apple Inc.) and VLSI Technology Inc. Acorn Computer purchase of intellectual property, and established ARM Ltd.. ARM Ltd. and then proceed to develop the project Acorn Computer processor with a 32bit RISC architecture that is simple and energy efficient. 

Processor developed by ARM Ltd. was not in demand by the PC manufacturers, the reason is not compatible with the Intel x86 architecture. ARM Ltd then decided not to produce ARM processors, but the license for the design of the processor combined with ASIC (Application Specific IC) that require an embedded controller (eg, a printer controller, washing machine controller, video decoder controller, ethernet controller hub / router, and so on ).

Now, ARM processors are also produced by a variety of semiconductor companies as a separate microprocessor (formerly ARM processor always embedded with ASIC ) or microcontroller ( with a variety of features required reduction microprocessor ).

Companies that used or are currently using ARM processor license covers AlcatelLucent , Apple Inc. . , Atmel , Broadcom , Cirrus Logic , Digital Equipment Corporation ( DEC ) , Freescale , Intel ( through the acquisition of DEC ) , LG , Marvell Technology Group , Microsoft , NEC , Nuvoton , Nvidia , NXP (formerly Philips ) , Oki , Qualcomm , Samsung , Sharp , STMicroelectronics , SYMBIOS Logic , Texas Instruments , VLSI Technology , Yamaha and ZiiLABS.

Figure 2. Advanced RISC Machine (ARM) Families (Kelas Mikrokontroler)

A wide variety of well-known ARM -based controllers include DEC StrongARM ( used Intel processors for PDAs ) , Marvell XScale ( design Marvell bought Intel's Xscale ) , Nintendo ( Gameboy processor , DSi , and 3DS ) , Nvidia Tegra , STEricsson Nomadik , Qualcomm Snapdragon , Texas Instruments OMAP product line , the Samsung Hummingbird and the Apple A4.

3 Kinds or Types of ARM Microprocessor

There are 3 kinds or types of ARM microprocessor as likes: Classic ARM Processor, Embedded Cortex Processor, and Application Cortex Processor.

  1. Classic ARM Processor. ARM classic is ARM processor family that was first released by ARM Ltd. (now ARM). Classical ARM processor is ideal for users who want to use the technology has been tested in the market. Prosesorprosesor has been used for a wide range of electronic products for many years. Electronic product designers choose prosesorprosesor is guaranteed to have the support of the ecosystem and vast resources, the minimum level of integration difficulties, and decrease design time. In the classic consists of ARM ARM 7, ARM9, ARM 11.
  2. Embedded Cortex Processor. The processor in the Cortex-M family series has been developed specifically for microcontroller domain, where the demand for speed, time determination process, and interrupt management along with the minimum number of gate silicon (silicon broad minimum processor determines the final price) and minimum power consumption is in great demand. Examples of applications the Cortex-M processor is a microcontroller and smart sensors. The processor in the Cortex-R series family, by contrast, was developed specifically for the purpose of real-time depth, where the minimum power consumption and interrupt the predictable nature balanced with outstanding performance and strong compatibility with existing platforms. Examples of applications the Cortex-R processors are ABS (Automotive Braking Systems), electronic controller gears, hydraulic, and machine otomotif.Dalam Embedded ARM Cortex M0 consists of, Cortex-M1, Cortex-M3, and Cortex R4.
  3. Application Cortex Processor. Processors of this type was developed for applications that require high computing power (the average frequency of 2GHz processing), such as netbooks, mobile Internet devices, smartphones, and other application-lain.Dalam ARM Cortex A5 consists of, Cortex A8, Cortex A9. Once we know the various types of ARM family, then we can easily determine the type of which we will use. Because the needs of the author is currently developing an embedded system, the processor is selected from embedde ARM cortex processor types, namely Cortex M3.

ARM Cortex M3

ARM Cortex-M3 processor is the ARM Cortex family of processors embedded microcontroller applications to replace 8/16bit. The advantages of the ARM Cortex-M3 microcontroller compared 8/16bit located at: 

  1. Higher computing capability for the same working frequency 
  2. Power consumption is less than or equal 
  3. Prices are cheaper or the same 
  4. Compatible with other ARM Cortex-M (ARM Cortex-M0, Cortex-M4). 

Applications that are compiled for the ARM Cortex-M3 can be run on the ARM Cortex-M other. It is useful for hardware upgrades, without removing the software that has been done.

Reference Source: 


Friday, March 28, 2014

Careful with WhatsAppitis Disease Caused from WhatsApp Addiction

Robometricschool. - We think it is new variants of disease that happened in human body. This disease is mentioned with WhatsAppitis. It is disease name that similar with name social media that called WhatsApp. And maybe you will conclude that this disease because of WhatsApp trouble.

Figure 1. WhatsAppitis Desease Because of WhatsApp Addiction (Detikinet)

Yes, you right that WhatsAppitis is the disease that caused from WhatsApp addiction. According detikinet show us that addiction messaging services like WhatsApp wear it can damage the health. At least, that's what the Spanish doctor named Ines Fernandez Guerrero of Granada General University Hospital.

And maybe you you will ask, why WhatsApp addiction can cause WhatsAppitis? Also still from detikinet said that The doctor initially receives a patient who complained of both wrists ache. Once traced, Fernandez doctors find that the patient's previous insanely using WhatsApp for 6 hours. 

The patient was 34 years old and pregnant. He did not do any strenuous activity before. It was concluded that prolonged access WhatsApp cause pain, which is dubbed as WhatsAppitis. The patient was given painkillers and also forbidden to use the phone for a while. 

Pain arising from the excessive use of mobile phones is already emerging from the first. When the BlackBerry at the peak of its popularity, once there is a term for the Blackberry thumb pain on the thumb because too many pressing a keyboard phone. So, please use keep your body from WhatsAppitis with use WhatsApp proportionally in your live.

More information for disease click link below:

Monday, March 24, 2014

Simple Circuit Schematic Multiple Battery Charger for NiCd and NiMH

Robometricschool. - Do you want to build electronic device that can be used to charge multiple battery voltage of many electronic device as like batteries from radio, MP3, iPod, smartphone, and others batteries from electronic devices? 

In this time we want show you one electronic circuit schematic that can be used as Multiple Battery Charger for NiCd and NiMH like in figure 1 below. We think it is very simple electronic circuit schematic that very useful to you.

Circuit Schematic

Figure 1. Multiple Battery Charger for NiCd and NiMH 

Component List
  1. D1 = IN4005
  2. C1 = 220 uF/25V
  3. R1 = 120 ohm 5W
  4. Q1 = BD 135
  5. D2 = LED
  6. RX = see table ......>


According description from circuitdiagram site show us that we can charge multiple voltage batteries with the help of  the input voltage chart given below for example if you want to charge 1.2V battery then the minimum voltage should be 6.5V and maximum should be 10V. 

We can also change the output current to desired value by changing the value of resistor RX. The output current chart is also mentioned below. It is better to charge a battery with a current ten time smaller then the battery capacity. 

If we double the charging current then the battery will charge in half time. I suggest you to charge the battery for 15 hours if you select charging current ten times smaller but if you double the charging current then the battery will become charge in 7 hours.