macro "constrain" passed 5 arguments, but just takes 3

Projects Programming
1

I am new to Arduino. I am using 1.8.9. I am using an Arduino Mega. I am trying to write a program for a robotic finger and I am getting this error message:

Youtube_Sensor_Glove:22:111: error: macro "constrain" passed 5 arguments, but takes just 3

Servoposition1 = constrain(indexposition, min servo range, max servo range, min sensor range, max sensor range);

^

exit status 1
macro "constrain" passed 5 arguments, but takes just 3

Here is the code

In the top left hand corner it says Youtube_Sensor_Glove

For some reason

#include <servo.h>

Servo index1;

Const int flexpin1;

Void setup()
{
index1.attach(9);
}

Void loop()
{
Int flexposition1;
Int indexposition1;

Flexposition1 = analogread(flexpin1);
Servoposition1 = map(flexposition1, min servo range, max servo range, min sensor range, max sensor range);

Servoposition1 = constrain(indexposition, min servo range, max servo range, min sensor range, max sensor range);

index1.write(indexposition1);

delay(50);
}

}

2

void != Void.

3

How many arguments does constrain() take? See constrain

Please read How to use this forum - please read., specifically point #7 about posting code.

4

Perhaps you meant to use map()?

You often need to wrap a map() with a constrain() because map() is unconstrained.

5

What on earth do you expect constrain() to do with 5 arguments?

the rest of your code is also a mess.

void is spelled with a lower case v (only reason this hasn't been called out is that the preprocessor is choking before it even starts compiling, because constrain() is a macro, not a function).

You would also get an error because indexposition isn't declared - presumably you meant indexposition1, except you never assigned a value to it, so it has a random value (global variables are initialized to 0 even if not explicitly initialized, but local variables are not automatically initialized, so they'll have whatever value happened to be at that memory location) - so it wouldn't make sense as the first argument to constrain. Or map for that matter.

6

So what do I need to do to fix the code in its entirety?

7

Correct the spelling of "void", "const", "Servo" and declare something called "Servoposition1".
Decide whether you want constrain or map.
And code tags.