EMG Testing Procedures:
We have tested each component of the circuit separately and then tested them all together in the end. The separate components that need to be tested are the EMG amplifier circuit and the microcontroller code. For the EMG amplifier circuit we have already simulated the filters in Electronic workbench and we have a frequency versus voltage graph figure 1. for the band-pass filter. On the protoboard, the function generator will input different AC signals that have different frequencies ranging from 1 to 1000 Hz. Then the output voltage will be observed with an oscilloscope to see how the band-pass filter responds for the pass-band and the stop-band. To evaluate the amplifier, we will measure the common mode gain, differential gain, and then obtain the common mode rejection ratio figure 1..