ECG-on-Teensy

Credit to: L.Wang, Dinggao Pan

This is the final project of EE474 in University of Washington, Spring 2017. The project runs on Teensy, with an extra analog front end. Both of the detailed circuitry design and the actual layout of the analog front end is attached. The ECG has the following functions:

1. Detect and record the ECG graph for playback;
2. Detect heart beat per minute and the QRS interval;
3. Detect cardio symptoms such as: Asystole, Bradycardia, Tachycardia and PVC;
4. Bluetooth connection for display through blefruitLE_nRF51;