Project Summary

We desire to understand what information is available in the PPG sensor.

We desire to exploit the understanding to develop devices of utility.

Reading and plotting pulsesensor.com

Using an ESP32 Dev Kit 1, A2D capture and plot of this sensor

Hardware, Proof Of Concept

Sensore wired into a proof of concept (Solderless Breadboard)
This wiring approximates the "homework II" PWA of Nagham.

Results

Actual Serial Plotter

2026/03/26

This serial plot only has 50 points.

2026/04/16

Changed Arduino IDE to have 500 point serial plot.

References:

https://documentation.espressif.com/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf?pubDate=20250908 https://documentation.espressif.com/esp32_technical_reference_manual_en.pdf
https://documentation.espressif.com/esp32-wroom-32_datasheet_en.pdf https://documentation.espressif.com/esp32_datasheet_en.pdf

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Author: Jack Yu

Date: 2026/03/06