Project 8 of 8 Basics

Recorded-data filtering study

Compare raw and smoothed ECG or PPG sample files without connecting sensors to a person. Measure how filtering changes noise, peak height, and timing, and explain why aggressive smoothing can create misleading results.

One of 8 projects in the ESP32 ECG & Optical Pulse Learning Kit — the parts below are from that kit.

// How it works

What you build in this project

Recorded-data filtering study is one focused build from the ESP32 ECG & Optical Pulse Learning Kit. It uses the parts listed below to make a working electronics example, then you can combine it with the other projects in the kit.

Compare raw and smoothed ECG or PPG sample files without connecting sensors to a person. Measure how filtering changes noise, peak height, and timing, and explain why aggressive smoothing can create misleading results.

Parts used

Computer, spreadsheet or analysis software, instructor-provided non-identifying sample data

What to check

Wire the parts, upload the sketch from the kit page, then test this project by watching the Serial Monitor or the output behavior.

What you learn

You learn how the controller reads real sensor signals, makes a decision in code, and turns that result into a useful output.

// Items used

What this project uses

Every item is in the kit — nothing extra to buy.

Computer

In the kit

spreadsheet or analysis software

In the kit

instructor-provided non-identifying sample data

In the kit

Basics 830 Tie Point Solderless Breadboard - Full Size Prototyping Circuit Board with Dual Power Rails, for Arduino… DIY-217

In the kit

Basics Jumper Wire Assorted Pack 120 Pieces - Male-to-Male, Male-to-Female, Female-to-Female 10cm Ribbon Cables for… DIY-212

In the kit

Build this with

ESP32 ECG & Optical Pulse Learning Kit

All 6 parts in one box, with this project and 7 more to build from them.

AED 101.50 See the kit

Need only these parts? Order them loose · from AED 25.02

Used in this project tick what you still need

Also needed untick if you already have them

Basics 830 Tie Point Solderless Breadboard - Full Size Prototyping Circuit Board with Dual Power Rails, for Arduino… DIY-217 · ×1

AED 15.00

Out of stock

Basics Jumper Wire Assorted Pack 120 Pieces - Male-to-Male, Male-to-Female, Female-to-Female 10cm Ribbon Cables for… DIY-212 · ×1

AED 25.02

In stock

Selected parts AED 25.02

One of each part. Packs (resistor assortment, jumper wires) already hold more than a single build needs. Computer, spreadsheet or analysis software, instructor-provided non-identifying sample data: included in the kit, ask us for it loose. Delivery is AED 20, free on orders AED 150+.

// Keep going

More from this kit

← Previous · 07ECG and optical timing comparison

Basics 01

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Basics 03

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ESP32U MAX30102 optional OLED breadboard jumper wires

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