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Articles on Trending Technologies
Technical articles with clear explanations and examples
How to Use isGraph() in Arduino?
The isGraph() function is very similar to the isPrintable() function in Arduino. The only difference is that isGraph() returns true only if the character being printed has some content.So, blank space gets excluded by isGraph() but included by isPrintable(). All normal characters, numbers, special characters, which have some content will return true when passed through isGraph().SyntaxThe syntax is −isGraph(myChar)Where myChar is the character being checked. A quick question. Will the tab and new line characters return true with isGraph().ExampleValidate your answer with a simple code like below −void setup() { // put your setup code here, to run once: ...
Read MoreshiftIn() and shiftOut() in Arduino
shiftIn() and shiftOut() commands in Arduino are, very loosely speaking, software implementations of SPI. Of course, SPI is much faster, but SPI can work only on some specific pins of Arduino. shiftIn() and shiftOut() can use any two GPIOs of Arduino (not some specific pins like SPI).Both shiftIn() and shiftOut() require two digital pins, one dataPin and one clockPin.The dataPin will shift in or shift out a byte (8 bits) of data, 1 bit at a time. The clockPin synchronizes the data transfer. It is generally kept low, and for each bit transfer, it goes HIGH and then back to ...
Read MorepulseIn() and pulseInLong() in Arduino
If there is an incoming pulse on a pin, and you need to measure the duration of the pulse then the pulseIn() function comes in handy.SyntaxThe syntax is −pulseIn(pin, value)Where pin is the number of the pin on which you wish to measure the pulse. The value is the level of the pulse. It can be HIGH or LOW.For example, if you set the value to HIGH, it means that as soon as the voltage on the pin goes from LOW to HIGH, the measurement of the time will start. It will stop when the voltage on the pin goes ...
Read Moretone() and noTone() in Arduino
The tone function can be used to generate a square wave (50% duty cycle) of a specific frequency on a pin.SyntaxThe syntax is −tone(pin, frequency)pin is the pin number on which to generate the tone. The frequency is specified in Hz.This function can also take in a third optional argument − the millisecond duration for which the tone should be generated on the pin.tone(pin, frequency, duration)If you don’t specify the duration, the tone will continue till the noTone() function is called on the same pin. The syntax of the noTone() function is −noTone(pin)where pin is the pin number on which ...
Read MoreWhat happens if we try to extend a final class in java?
In Java final is the access modifier which can be used with a filed class and a method.When a method if final it cannot be overridden.When a variable is final its value cannot be modified further.When a class is finale it cannot be extended.Extending a final classWhen we try to extend a final class that will lead to a compilation error saying “cannot inherit from final SuperClass”ExampleIn the following Java program, we have a final class with name SuperClass and we are trying to inherent it from another class (SubClass).final class SuperClass{ public void display() { ...
Read Morefinal, finally and finalize in Java
The final keyword can be used with class method and variable. A final class cannot be inherited, a final method cannot be overridden and a final variable cannot be reassigned.The finally keyword is used to create a block of code that follows a try block. A finally block of code always executes, whether or not an exception has occurred. Using a finally block allows you to run any cleanup-type statements that you just wish to execute, despite what happens within the protected code.The finalize() method is used just before object is destroyed and can be called just prior to object ...
Read MoreWhat is Arithmetic Pipeline in Computer Architecture?
Pipeline arithmetic units are generally discovered in very large-speed computers. It can execute floating-point operations, multiplication of fixed-point numbers, and the same computations encountered in mathematical problems.The inputs to the floating-point adder pipeline are two normalized floating-point binary numbers represented as −X = A x 2aY = B x 2bWhere A and B are two fractions that define the mantissa and a and b are the exponents. The floating-point addition and subtraction can be implemented in four segments, as a displayed figure. The registers labeled R is located between the segments to save intermediate outcomes. The suboperations that are implemented ...
Read MoreWhat is Instruction Pipeline in Computer Architecture?
An instruction pipeline reads consecutive instructions from memory while in the other segments the previous instructions are being implemented. Pipeline processing appears both in the data flow and in the instruction stream. This leads to the overlapping of the fetch and executes the instruction and hence simultaneous operations are performed.There is one possible more event associated with such a design is that instruction can generate a branch out of a sequence. In this method, the pipeline is clear and all the instructions that have previously been read from memory after the branch instruction should be rejected.A computer can be constructed ...
Read MoreWhat is the division of binary numbers in Computer Architecture?
The binary division is similar to division in decimals. The process involves successive comparison, shifting, and subtraction. The division of binary numbers is easy compared to the division of decimal numbers because the quotient is either 0 or 1. It is also not necessary to check the number of times the dividend (partial remainder) fits into the divisor.Divide OverflowIn a computer system, the division operation can lead to a quotient with an overflow because the registers cannot hold a number that exceeds the standard length. To understand this better, consider a system with a standard 5-bit register.One register is used ...
Read MoreKnow Your Client (KYC) – Outline, Process & Advantages
Know Your Client (KYC) or Know Your Customer (KYC) is a crucial procedure used to validate the identification and other credentials of a financial services user before providing them with services. Identity and other information about a financial services user is verified via a regulatory procedure known as Know Your Customer (KYC).Key Points BrieflyKnow Your Customer (KYC) specifications are followed by the Government and financial services sector to check clients, especially their risk profiles, and to verify their presence as valid citizen in some cases.In the investing business, the Know Your Customer (KYC) regulations state that every broker-dealer must make ...
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