Hardware and app design

Job ID: 35075945

Budget: ₹12,500 – ₹37,500 INR

We have to design a hardware which is used to calculate the height of a person and populate the data into the app through wifi . The Hardware should have a button which is used to reset the height( altitude as 0) the while moving the hardware it should increase as it goes up.
The size and cost of hardware should be kept minimal.