BME 207 ECG Amplifier Extra Credit Project

This circuit takes input of a human ECG signal and outputs a filtered signal that can be routed to an Arduino and BPM can be counted

LTSpice Circuit designer, bread board, AC power supply, DC power supply, ECG pads and leads, resistors, wires, and an Arduino

Build the filter digitally. There needs to be an amplifier that can take in a signal and output it at 60 dB, a mains voltage notch ban filter to remove constant noise at 60 Hz, and a low-pass filter to isolate high frequency noise, attenuating all other signals above 100-150 Hz.

Assemble the designed circuit on a breadboard using resistors, wires, op amps, and voltage devices. Test each section to verify it works, and then check that a human subject's ECG can be read on an oscilloscope.

Run the output from a human subject into an Arduino. Program the Arduino to calculate beats per minute from the incoming signal's QRS wave complex. Have it readout to the user.

Iterate. Make improvements to improve the user experience or add features.