Refer the attached image,this is i want to do,measuring circumference of a large shell.
For calculating this, im going to fix a sensor which is stationary and rotating the shell, in this the sensor going to point from position say P0,now the shell rotates P0,P1,P2,sensor keeps tracking…After attaining the initial P0,the sensor stops,length is measured,that the circumference.
is this concept possible to implement?
i am new to arduino…kindly help.
is there any other method to calculate circumference of a big size shell?
What is the actual diameter of the object you are trying to calculate, and can you have sensors outside or do they need to be on the object itself? The more you can tell us about the project, the better we can help.
The diameter,circumference are unknown. My system has to measure circumference of any circular/elliptical object which is larger in size.
I have been looking for the ideas to attain this.
Let me add some details in my question to elaborate what I am asking for - The idea is to measure the vertical and horizontal distance traveled by the mouse without the screen size limitation. I have a wireless mouse which can move freely in any direction within 10-15 feet range. I want to use this advantage to measure any distance. I know I can map the maximum range of my mouse on my screen and can do that but I don’t even want range of the mouse to be the constraint while measuring the distance. Do I need raw mouse data to do this?
Edit: Example - : What I am trying to do is measure the real world distance using mouse. Let say I have to measure the dimension of a table then I would just move my mouse on the table and it will register the dimension.
Few points to conclude the question
Can we use mouse to measure the distance?
Can we do it without modifying the mouse?
Since mouse cursor can’t move beyond the screen it is difficult to measure the x,y coordinate, Isn’t it?
Mapping the real world distance to screen is one solution but I don’t want to that because it constraints it ability to measure the distance.
Can we move the mouse beyond the screen?
If we can, can we get the mouseX or mouseY location ?
The project seems to be entirely software at this point. The optical sensor inside the mouse has a very limited range of a few mm, so it comes down to software and calibration. Since this is so custom, there’s not much we can do to help you get started.
On a 2D plane - perhaps. We have not seen any projects which make use of it, but that does not mean they are not out there.
It’s not easy to modify an optical mouse. You might have better luck with a ball mouse (quite old, but some are still around). These use a track ball connected to encoder wheels for X and Y position.
It’s all about programming.
You can do anything in software.
It all comes down to programming.