![]() ![]() Additionally, the variable x will be set to 10, which is also not a desired action. Consequently, if (x = 10) will always evaluate to TRUE, which is not the desired result when using an 'if' statement. IfStatementConditional - Use an ‘ if statement to change the output conditions based on changing the input conditions. Then the 'if' conditional evaluates 10, which always evaluates to TRUE, since any non-zero number evaluates to TRUE. On a point of style it actually might be better to implement the inner switch as a separate function. The switch - case statement is a powerful construct that is often under-used by beginners. ![]() This is because C++ evaluates the statement if (x=10) as follows: 10 is assigned to x (remember that the single equal sign is the ( assignment operator)), so x now contains 10. 1 Answer Sorted by: 2 What happens of the if (Serial.available () > 0) call fails That's the problem, because when there isn't anything available it's skipping the second switch statement. The latter statement is only true if x equals 10, but the former statement will always be true. The switch case statement is trying to match a case with the variable in the parenthesis, it will skip over each case until it finds a match if it does. if (x = 10) ), which is the comparison operator, and tests whether x is equal to 10 or not. I wish to use the data received in a switch/ case statement, and for some reason, I cant get it to work. Here, we will discuss a project to turn ON one led from multiple LEDs based on the value in the variable. That is only what you think it should do. I have my master sending the pot data correctly to the slave. CodingCarnage: LED changes depending on what you write to serial, 0 is for it to be OFF, 1 is for it be ON, and 2 is for BLINK. ![]() The single equal sign is the assignment operator, and sets x to 10 (puts the value 10 into the variable x). Hi, I have a project where I want to control a motordriver with a potentiometer over i2C. Beware of accidentally using the single equal sign (e.g. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |