Capacitance Sensing Library and Circuit

For this device, we utilized an RC circuit and the Arduino Capacitance Sensing Library to measure capacitance from the "C" value in the RC circuit.
The main driver of this device is the Arduino Capacitance Sensing Library, which basic RC circuit properties to read the capacitance. A DC signal is sent out through the charge pin and into the circuit, which is now an RC circuit with a variable capacitance resistor (the sensor) acting as the "C". The library then uses the RC time constant τ to measure the absolute capacitance from the sensor. The library uses arbitrary units to measure the capacitance, as τ gives no information on the units of the value measured. As a result, we can equate the arbitrary units to m/s2 in the calibration phase, and all that matters in determining the configuration of our circuit are how many degrees of precision we have to work within the device. For example (as noted in section \ref{995544}), the final circuit has a precision of 600 arbitrary units when at rest, meaning the absolute measured capacitance changes by 600 units between rest and full compression on each of the sensors. By this, when we equate a single arbitrary unit to a m/s  2 value, we can measure 600 points of m/s2 on each compression of the oscillating system.