Arduino - Operators

An operator is a symbol that tells the compiler to perform specific mathematical or logical functions. C language is rich in built-in operators and provides the following types of operators − Read More: Arduino Info
  • Arithmetic Operators
  • Comparison Operators
  • Boolean Operators
  • Bitwise Operators
  • Compound Operators

Arithmetic Operators

Assume variable A holds 10 and variable B holds 20 then −
Operator nameOperator simpleDescriptionExample
assignment operator=Stores the value to the right of the equal sign in the variable to the left of the equal sign.A = B
addition+Adds two operandsA + B will give 30
subtraction-Subtracts second operand from the firstA - B will give -10
multiplication*Multiply both operandsA * B will give 200
division/Divide numerator by denominatorB / A will give 2
modulo%Modulus Operator and remainder of after an integer divisionB % A will give 0

Comparison Operators

Assume variable A holds 10 and variable B holds 20 then −
Operator nameOperator simpleDescriptionExample
equal to==Checks if the value of two operands is equal or not, if yes then condition becomes true.(A == B) is not true
not equal to!=Checks if the value of two operands is equal or not, if values are not equal then condition becomes true.(A != B) is true
less than<Checks if the value of left operand is less than the value of right operand, if yes then condition becomes true.(A < B) is true
greater than>Checks if the value of left operand is greater than the value of right operand, if yes then condition becomes true.(A > B) is not true
less than or equal to<=Checks if the value of left operand is less than or equal to the value of right operand, if yes then condition becomes true.(A <= B) is true
greater than or equal to>=Checks if the value of left operand is greater than or equal to the value of right operand, if yes then condition becomes true.(A >= B) is not true

Boolean Operators

Assume variable A holds 10 and variable B holds 20 then −
Operator nameOperator simpleDescriptionExample
and&&Called Logical AND operator. If both the operands are non-zero then then condition becomes true.(A && B) is true
or||Called Logical OR Operator. If any of the two operands is non-zero then then condition becomes true.(A || B) is true
not!Called Logical NOT Operator. Use to reverses the logical state of its operand. If a condition is true then Logical NOT operator will make false.!(A && B) is false

Bitwise Operators

Assume variable A holds 60 and variable B holds 13 then −
Operator nameOperator simpleDescriptionExample
and&Binary AND Operator copies a bit to the result if it exists in both operands.(A & B) will give 12 which is 0000 1100
or|Binary OR Operator copies a bit if it exists in either operand(A | B) will give 61 which is 0011 1101
xor^Binary XOR Operator copies the bit if it is set in one operand but not both.(A ^ B) will give 49 which is 0011 0001
not~Binary Ones Complement Operator is unary and has the effect of 'flipping' bits.(~A ) will give -60 which is 1100 0011
shift left<<Binary Left Shift Operator. The left operands value is moved left by the number of bits specified by the right operand.A << 2 will give 240 which is 1111 0000
shift right>>Binary Right Shift Operator. The left operands value is moved right by the number of bits specified by the right operand.A >> 2 will give 15 which is 0000 1111

Compound Operators

Assume variable A holds 10 and variable B holds 20 then −
Operator nameOperator simpleDescriptionExample
increment++Increment operator, increases integer value by oneA++ will give 11
decrement--Decrement operator, decreases integer value by oneA-- will give 9
compound addition+=Add AND assignment operator. It adds right operand to the left operand and assign the result to left operandB += A is equivalent to B = B+ A
compound subtraction-=Subtract AND assignment operator. It subtracts right operand from the left operand and assign the result to left operandB -= A is equivalent to B = B - A
compound multiplication*=Multiply AND assignment operator. It multiplies right operand with the left operand and assign the result to left operandB*= A is equivalent to B = B* A
compound division/=Divide AND assignment operator. It divides left operand with the right operand and assign the result to left operandB /= A is equivalent to B = B / A
compound modulo%=Modulus AND assignment operator. It takes modulus using two operands and assign the result to left operandB %= A is equivalent to B = B % A
compound bitwise or|=bitwise inclusive OR and assignment operatorA |= 2 is same as A = A | 2
compound bitwise and&=Bitwise AND assignment operatorA &= 2 is same as A = A & 2
Arduino - Control Statements

Comments

Post a Comment

Popular posts from this blog

Arduino Arrays

Image
An exhibit is a successive gathering of memory areas that are of a similar sort. To allude to a specific area or component in the exhibit, we indicate the name of the cluster and the position number of the specific component in the exhibit. These Arduino boards are normally used in IOT Projects, Embedded Systems and automation projects. The representation given underneath demonstrates a whole number cluster called C that contains 11 components. You allude to any of these components by giving the exhibit name took after by the specific component's position number in square sections ([]). The position number is all the more formally called a subscript or file (this number indicates the quantity of components from the earliest starting point of the exhibit). The primary component has subscript 0 (zero) and is now and again called the zeros component.  Along these lines, the components of exhibit C are C[0] (articulated "C below zero"), C[1], C[2] et cetera. The most as
Read more

Arduino - Data Types

Data types in C refers to an extensive system used for declaring variables or functions of different types. The type of a variable determines how much space it occupies in the storage and how the bit pattern stored is interpreted. The following table provides all the data types that you will use during Arduino programming.  Read More:  Arduino Info void Boolean char Unsigned char byte int Unsigned int word long Unsigned long short float double array String-char array String-object void The void keyword is used only in function declarations. It indicates that the function is expected to return no information to the function from which it was called. Example Void Loop ( ) { // rest of the code } Boolean A Boolean holds one of two values, true or false. Each Boolean variable occupies one byte of memory. Example boolean val = false ; // declaration of variable with type boolean and initialize it with false boolean state = true ; // declaration of variable with type
Read more

Arduino - Board Description

Image
In this chapter, we will learn about the different components on the Arduino board. We will study the Arduino UNO board because it is the most popular board in the Arduino board family. In addition, it is the best board to get started with electronics and coding.  You should also have a look at Introduction to Atmega328 , which is a microcontroller used in Arduino board. Some boards look a bit different from the one given below, but most Arduinos have majority of these components in common.  Read More:  Arduino Info Power USB Arduino board can be powered by using the USB cable from your computer. All you need to do is connect the USB cable to the USB connection (1). Power (Barrel Jack) Arduino boards can be powered directly from the AC mains power supply by connecting it to the Barrel Jack (2). Voltage Regulator The function of the voltage regulator is to control the voltage given to the Arduino board and stabilize the DC voltages used by the processor and other el
Read more