In this example the switch statement is . LedControl - for controlling LED matrices or seven-segment displays with a. Just like If statements, switch case statements help the control and flow of the programs. E digitalRead ( NOTE: LED Anode (Long Leg) should always be linked to the resistor and Cathode (short Side). And use a switch or if statement later to perform some action on a certain stateNum . This tutorial is for those who want to learn more about how electronics (like buttons ) work.
In our case with the button, you have voltage that can take two paths. There are also arcade switches with an LED inside to indicate switch status. Part of this beginner arduino series. I cover the switch statement and how to use it practically with an easy.
Like if statements, the “ switch … case …. Switch statement with serial input Demonstrates the use of a switch statement. A switch can only select different discrete values from a single variable. The switch statement is much more compact especially if a lot of conditions .
I build a bluetooth controled car that i have some problem with the code to it.