Impedance Reading

Added code for reading impedances. The impedance is currently read every second using a timer overflow interrupt, and after the impedance is successfully read, a signal is sent to the frequency generator telling it to move on to the next frequency.

Solenoid Valve test

Testing Solenoid valve (SMC's SY114-6LZ) with the arduino code and preliminary circuit. 

Serial Communication with the AD5932 Programmable Frequency Scan Waveform Generator

The software for writing to the registers of the AD5932 has been completed.