Arduino Case Example
To get a switch case statement up and running you need to make a list of options. Your list might be something like case 0 Go to Nepal case 1 Go to Norway case 2 Go to Zanzibar These options are referred to as cases. Here there are three cases. In order to switch from one case to another, we use a variable that matches the case.
The best way to understand it is using an example first coded using Arduino if else statements and then translated into Arduino switch case statements. The simple example chosen below decodes characters received from the serial port. Some characters have specific actions while some characters can be ignored.
Arduino switch case code example. Below is a sample Arduino switch case code example that will turn on a LED depending on the value of a variable. quotint var 2 Variable with value 2 switch var case 1 digitalWriteLED_BUILTIN, HIGH turns pin 13 On break case 2 digitalWriteLED_BUILTIN, LOW turns pin 13 Off break default
In the setup section, we initialize the serial monitor. Analog pins are assumed to be inputs so we don't need to use the pinMode function here.. In the loop section, we declare a variable called temp to store the analog read value from the thermistorPin.The Arduino will take a reading from the thermistorPin and store the value in the temp variable. . The value will be between 0 and
Home Programming Built-in Examples Switch case Switch case Statement, used with sensor input. How to choose between a discrete number of values. Last revision 10022024. Arduino Board. photoresistor, or another analog sensor. 10k ohm resistors. hook-up wires. breadboard.
For case 4, all three LEDs will blink continuously. Using a switch statement, you've successfully controlled the behavior of LEDs based on the value of a potentiometer! Conclusion. In this article, you learned how to use a switch case statement in Arduino using a practical example.
The switch - case statement is a powerful construct that is often under-used by beginners. Basically it allows you to perform tests on a value or range of values and make decisions - a bit like the IF statement. This tutorial has three examples that progressively introduce some simple ideas to help you use the switch construct in your programming. You will need an Arduino Uno the programs
Now that you know the nuts and bolts, let's look at some real Arduino switch case examples in action Example 1 Classifying Sensor Threshold Ranges. Let's start with a straightforward example. Here's a switch statement that reads an analog temperature sensor, checks the value range, and prints a status classification.
Introduction. Arduino is a versatile platform that allows you to build and program various electronic projects. One of the essential tools in an Arduino programmer's toolkit is the Switch Case statement.. This powerful feature enables you to create efficient and organized decision-making structures in your code.
Arduino Switch Case Statement - Learn how to effectively use the switch case statement in Arduino programming to control flow and simplify code. Switch Case Statement Execution Sequence Example. Here is a simple example with switch. Suppose we have a variable phase with only 3 different states 0, 1, or 2 and a corresponding function