#ARDUINO BUTTON CASE DOWNLOAD#
You can download this simulation file for the practice.
#ARDUINO BUTTON CASE SOFTWARE#
I checked the above program in the Proteus simulation software and it worked the way I wanted it to work.
#ARDUINO BUTTON CASE SERIAL#
Now, the rest of the programs is pretty straight forward, the value stored in ldrrange is compared with the cases, let’s say if the value in ldrrange is 3 then case 3 will be executed and it will print medium on the Serial monitor.ĭownload Proteus simulation of the Light Meter based on the Switch Statement. As this article is about the switch case statement so I am going to use it. These values will be stored in the variable ldrrange, so at this point I can use the if else statements or I can use the switch case statements. Then using the map() function I limit the range from 0 to 3.Īs the light changes I will get values from 0 to 3. Int ldrrange = map( ldr_data, minvalue, maxvalue, 0, 3 ) Using the analogRead() I read the analog pin A1 which is named ldr and stored the value in variable ldr_data. and finally, I set the ldr sensor as the input. This way I can send values to the serial monitor.
I activated the serial communication using the Serial.begin() function. Then I defined a variable ldr_data for storing the values coming from the ldr circuit.Īnd finally I defined the maximum and minimum values which are given below. The middle wire coming from the LDR circuit is connected with the Arduino’s Analog pin A1. When it comes to programming, anything we write in the program has certain syntax.įirst, I started off by defining a pin for the LDR. I will practically demonstrate this for an LDR in a minute. The temperature value can be compared with the 4 cases. This thing can be easily done with the switch case statement. Normal temperature, hot, very hot, and extreme temperature. Let’s say you have a temperature sensor and you are told to monitor different temperatures like The switch case statement is used when we have multiple options and we need to perform a different task for each option. There is one potential problem with the if-else statement which is, using many if-else statements increases the complexity, which makes the program hard to read, which even confuse the developer himself. Why do we need a switch case? Why to use a Switch Case?Īs I said in the beginning a switch statement is basically a substitute of the if-else statement. One of the most frequently asked questions related with the Switch Statement are Each case can consist of hundreds of statements and different functions. Once the case match is found, a block of statements associated with that particular case is executed. Let’s make it simple, a switch statement is used to test the value stored in a variable by comparing it with multiple cases. In programming languages, a switch statement is a type of selection control mechanism used to allow the value of a variable or expression to change the control flow of program execution through search. Switch case statements in C/C++ programming are a substitute for long if statements that compare a variable to several integral values. I would appreciate your support in this way! What is a Switch Statement?
I may make a commission if you buy the components through these links. Without any further delay let’s get started!!! If you have never used the Arduino IDE before, then I highly recommend reading my article on the Arduino IDE.įor the practical implementation, you will need a few electronic components, For the programming, I will use the Arduino IDE. In this project, we will find the light intensity using the Switch case statements.Īs you know in Arduino C/C++ programming is used, so I will stick with the C/C++ programming example. In this article, I will practically use the Switch Statement in an Arduino based project Light meter. This article is unique in a sense as it focuses on the practical implementation of the Switch statement. There are so many articles about the switch statement, which only talk about software implementation. Today, I am writing this article about the Switch Statement and I will try to explain the maximum things so that you can use the switch-case statements in hardware-based projects as well. Switch Statement- Due to a lot of requests from my followers on YouTube Channel “Electronic Clinic” and Website to write an article about the Switch Statement with practical use. Switch statement based Light meter Arduino Programming:.The rules you need to take care of while using the switch statement:.
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