Measuring length with iPhone gyro and accelerometer

[ColdCoffee]

Is it possible to build an app to turn the iPhone into a measuring tape?

 

[robbieduncan]

Probably. I started looking into writing an app to do it but got bored. The user might well have to calibrate the device once as I suspect the accelerometer will return slightly different values on each phone.

 

[ColdCoffee]

Probably. I started looking into writing an app to do it but got bored. The user might well have to calibrate the device once as I suspect the accelerometer will return slightly different values on each phone.

I tried to do it but I failed... I used the first 2 of these equations..

http://en.wikipedia.org/wiki/Equations_of_motion#Equations_of_uniformly_accelerated_linear_motion

 

[ColdCoffee]

I tried to do it but I failed... I used the first 2 of these equations..

http://en.wikipedia.org/wiki/Equations_of_motion#Equations_of_uniformly_accelerated_linear_motion

I think my math is correct but the accelerometer's noise screws up everything...