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nanda
03-19-2007, 08:39 AM
Hi everyone,

I am thinking to build a smart punching bag. It's a punching bag that when a person hit the bag, it will show the power of the hitter in an LCD. I was planning to do it using pressure sensor, but i couldnt find the right sensor so far for that. Note that i will apply a big force onto the sensor. Do you have ideas of what sensors i can use to do my project?

Thank you very muh,

Fernanda Zulkarnain

Brian Carpenter
03-19-2007, 10:12 AM
This is not a completed project and should be posted in the sandbox.

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It's Only A Stupid Question If You Have Not Googled It First!!

Chris Savage
03-19-2007, 12:16 PM
This thread is being moved from the Completed Projects Forum to the Sandbox Forum.

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Chris Savage
Parallax Tech Support

Phil Pilgrim (PhiPi)
03-19-2007, 03:03 PM
An accelerometer IC should do the job, espec ially if the punching bag has any mass to it. Remember F = ma. If you know the mass of the object being moved (i.e. punched) and the acceleration it undergoes, you can calculate the force that made it happen.

Accelerometer ICs come in different G ranges. You will need to experiment to find an appropriate range for your app.

-Phil