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Showing posts from January, 2016

Remotely copy files to and from your Raspberry Pi or linux OS or any platform

        In this post i will tell you how remotely copy files to and from your Raspberry Pi or linux OS or any platform.In this tutorial i will take example of Linux Ubuntu and Raspberry Pi OS  Raspbian .  Most of the time I   re motely log into my Raspberry   Pi  for that i will use SSH or VNC into it. Some time have to transfer the file to Raspberry to My desktop or vice versa . That time will find the difficulty.For that i found easy solution that is    Remotely copy files to and from your Raspberry Pi or linux OS or any platform using filezilla. Filezilla is the open source software for all platform.using that we can easily   Remotely copy files to and from your Raspberry Pi or linux OS or any platform  . First you have to install Filezilla to your pc  https://filezilla-project.org/  . In Ubuntu go to software center type Filezilla and download  Once installed, load the program. You should see a screen like this. Now click on File and then Site Manager. Now click on F

Qualifiers and Modifier in C

Qualifiers or Modifier in C Qualifiers(Modifier) is used in c programming to modify the property of the variable. In C programming Qualifiers(Modifier) there are 5 group of qualifiers(Modifier) 1st group is having 5 types auto, register, static, extern, typedef. 2 nd  is having 2 typessigned, unsigned. 3 rd  one is having again 2 types Short, long. 4 th  one is Constant 5 th  is volatile. Group Qualifiers(Modifier) Default Qualifiers(Modifier) 1 auto, register, static, extern, typedef auto 2 signed, unsigned signed 3 Short, long Not Short,not long 4 Const Not Const 5 Volatile Not Volatile Auto It defines the storage class of a variable. However, since the default for local variables is  auto , you don't normally need to manually specify it. Register Variables which are most frequently used in a C program can be put in registers using  register  keyword Local variable are stored in register instead of  RAM. Static Static defined local variables d

IOT Internet Of Things

Hi guys today am going to give the basic introduction on IOT(Internet of things).IOT(Internet of things) is nothing but it is connected things or connected device. In IOT(Internet of things) environment objects,device ,animal ,people ,buildings,plant all are embedded with sensor ,software,electronics and internet all are exchange the data between them compute them self without human to human or human to computer interaction. The internet of things is allow the objects to to be sensed and controlled by remotely across networked environment creating opportunities for direct integration between the physical world and computer-based systems, and resulting in improved monitor control efficiency accuracy economic and management benefit. Experts estimate that the IoT will consist of almost 50 billion objects by 2020.In future iot device are basic need for people .for example your phone, smart watch, smart band, smart tags etc now days IOT are used in smart city ,smart home(

C programming interview question

C programming interview question  Variables & Control Flow in C programing, Functions, Operators, Constants & Structures in C programing, Pointers, Programs Variables & Control Flow in C programing 1. What is the difference between declaring a variable and defining a variable? 2. What is a static variable? 3. What is a register variable? 4. Where is an auto variable stored? 5. What is scope & storage allocation of extern and global variables? 6. What is scope & storage allocation of register, static and local variables? 7. What are storage memory, default value, scope and life of Automatic and Register storage class? 8. What are storage memory, default value, scope and life of Static and External storage class? 9. What is the difference between 'break' and 'continue' statements? 10. What is the difference between 'for' and 'while' loops? Operators, Constants & Structures in C progra

CAN communication( protocol )

This tutorial will give the brief idea about CAN (control area network)bus protocol,    CAN is a multi-master broadcast serial bus standard for connecting electronic control unit (ECU). Controller–area network (CAN or CAN-bus) is a vehicle bus standard designed to allow micro controllers a devices to communicate with each other within a vehicle without a host computer.     CAN is a message-based protocol, designed specifically for automotive applications but now also used in other areas such as industrial automation and medical equipment. The Controller Area Network (CAN) bus is a serial asynchronous bus used in instrumentation applications for industries such as automobiles.  This tutorial is divided into mainly five sections as listed below. 1. Introduction to CAN 2. CAN layers 3. CAN Properties 4. Types of CAN 5. CAN messages Introduction to CAN The Controller Area Network (CAN) is a serial communications protocol. CAN is widely used in automotive electroni

RTOS Real time operating system interview questions

RTOS Real time operating system interview questions  RTOS 1. What is a Real-Time System? Ans:Real time system means is system which is having time critical application . System should accept and complete the task without buffer . RTOS Definition 1: A real-time system is one that must process information and produce a response within a specified time, else risk severe consequences, including failure. That is, in a system with a real-time constraint it is no good to have the correct action or the correct answer after a certain deadline: it is either by the deadline or it is useless! Definition 2 (modified from The Oxford Dictionary of Computing): Any system in which the time at which output is produced is significant. This is usually because the input corresponds to some event in the physical world, and the output has to relate to that same event. The lag from input time to output time must be sufficiently small for acceptable timeliness Definition 3 (Young