Arduino Switch Case.
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Hi All, Question about the Switch Case, I always treated the default section of a switch case a 'I have no idea what to do'
for(i=0; i<= 100; i++)
{
myServo.write(i);
val = myServo.read();switch(val)
{
case 0:
break;case 50:
break;case 100:
break;default:
//Here??
break;
}What appears to be happening it goes to the default when not caught by a catch. In the example when i = 50, I need a method for catching values out side of the the range 1 to 100. As if the servo returns value outside of the range 0 to 100. Could I do with an if... if(( i < 0) && (i >100)) would this take care of anything 0 - 100??? I will try that.
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Hi All, Question about the Switch Case, I always treated the default section of a switch case a 'I have no idea what to do'
for(i=0; i<= 100; i++)
{
myServo.write(i);
val = myServo.read();switch(val)
{
case 0:
break;case 50:
break;case 100:
break;default:
//Here??
break;
}What appears to be happening it goes to the default when not caught by a catch. In the example when i = 50, I need a method for catching values out side of the the range 1 to 100. As if the servo returns value outside of the range 0 to 100. Could I do with an if... if(( i < 0) && (i >100)) would this take care of anything 0 - 100??? I will try that.
In your instance (if this is the actual code), all values that are not 0, 50, or 100 will end up at the default statement. There's also a missing closing bracket for the switch statement, probably a copy/paste thing.
"the debugger doesn't tell me anything because this code compiles just fine" - random QA comment "Facebook is where you tell lies to your friends. Twitter is where you tell the truth to strangers." - chriselst "I don't drink any more... then again, I don't drink any less." - Mike Mullikins uncle
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Hi All, Question about the Switch Case, I always treated the default section of a switch case a 'I have no idea what to do'
for(i=0; i<= 100; i++)
{
myServo.write(i);
val = myServo.read();switch(val)
{
case 0:
break;case 50:
break;case 100:
break;default:
//Here??
break;
}What appears to be happening it goes to the default when not caught by a catch. In the example when i = 50, I need a method for catching values out side of the the range 1 to 100. As if the servo returns value outside of the range 0 to 100. Could I do with an if... if(( i < 0) && (i >100)) would this take care of anything 0 - 100??? I will try that.
glennPattonWork3 wrote:
Could I do with an if... if(( i < 0) && (i >100))
I'm afraid that test will never be true. No value of i can be less than zero AND greater than 100 at the same time.
The difficult we do right away... ...the impossible takes slightly longer.
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Hi All, Question about the Switch Case, I always treated the default section of a switch case a 'I have no idea what to do'
for(i=0; i<= 100; i++)
{
myServo.write(i);
val = myServo.read();switch(val)
{
case 0:
break;case 50:
break;case 100:
break;default:
//Here??
break;
}What appears to be happening it goes to the default when not caught by a catch. In the example when i = 50, I need a method for catching values out side of the the range 1 to 100. As if the servo returns value outside of the range 0 to 100. Could I do with an if... if(( i < 0) && (i >100)) would this take care of anything 0 - 100??? I will try that.
-
Hi All, Question about the Switch Case, I always treated the default section of a switch case a 'I have no idea what to do'
for(i=0; i<= 100; i++)
{
myServo.write(i);
val = myServo.read();switch(val)
{
case 0:
break;case 50:
break;case 100:
break;default:
//Here??
break;
}What appears to be happening it goes to the default when not caught by a catch. In the example when i = 50, I need a method for catching values out side of the the range 1 to 100. As if the servo returns value outside of the range 0 to 100. Could I do with an if... if(( i < 0) && (i >100)) would this take care of anything 0 - 100??? I will try that.
-
Hi All, Question about the Switch Case, I always treated the default section of a switch case a 'I have no idea what to do'
for(i=0; i<= 100; i++)
{
myServo.write(i);
val = myServo.read();switch(val)
{
case 0:
break;case 50:
break;case 100:
break;default:
//Here??
break;
}What appears to be happening it goes to the default when not caught by a catch. In the example when i = 50, I need a method for catching values out side of the the range 1 to 100. As if the servo returns value outside of the range 0 to 100. Could I do with an if... if(( i < 0) && (i >100)) would this take care of anything 0 - 100??? I will try that.
I am a dummy, I should have seen the problem, in fact I did as I was writing the question. I helps writing out the problem to see it more clearly, You can see the light starting to dawn in the last sentance problem solved.:thumbsup:
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glennPattonWork3 wrote:
Could I do with an if... if(( i < 0) && (i >100))
I'm afraid that test will never be true. No value of i can be less than zero AND greater than 100 at the same time.
The difficult we do right away... ...the impossible takes slightly longer.
It could, if it was val not i as I typed. Solved
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According to that code as written, any value that is not 0, 50 or 100, will go to the default statement. If that is not happening then there must be some other code that we can't see.
That was the thing. Typing it out made me see it. :sigh:
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... oops (wrong forum red-flag-accessed-by-moi) For some reason I thought I was in the Lounge and have disappropriated some points that shouldn't be mine. Sorry! Is "What do I do now" an appropriate C/C++/MFC question? Thanks (answered myself),
It was a need to think carefully, code blindness issue. I knew if I posted it the lounge I would get cruified by all and sundry needed somewhere to write think and take notice of the abortion I has created. :omg:
