Week 4: Project Demo & Conclusion

At this point in our project, we have successfully completed our project goals, with some caveats. Specifically, we have taken an analog input to the ADC, which is operating in DMA mode, and both displayed the data to the SPI LCD display, as well as sending the data of UART. In the end, we needed to do some averaging in our program to create a coherent display, which helped to smooth the data's appearance.

Unfortunately, reading and displaying the data live limits our ability to sample the data as often as we would like. When using the ECG front end board, the displayed signal doesn't fully represent the actual signal, which caused by the human heartbeat's naturally sharp features. Luckily, we can use a 1Hz sine wave as a placeholder for the heartbeat and confirm that our project is able to easily plot these smooth signals.

Displaying a 1 Hz sine wave on LCD Display

Displaying Heartbeat on LCD Display