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DIY SPO2-KiCAD Project
Soham3126/DIY-SPO2-KiCAD-Project2A low-cost, non-invasive Pulse Oximeter (SpO2) and Heart Rate monitor based on the MAX30102 sensor and Arduino. This project features real-time PPG signal processing, I2C communication, and a custom PCB design for portable health monitoring.
- Size
- 75 × 50 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 19
- Nets
- 31
- Pads
- 71
- Tracks, vias
- 62, 3
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 24 Apr 2026
- Updated
- 24 Apr 2026
Overview
DIY SPO2-KiCAD Project is an open-source printed circuit board by Soham3126, from the Soham3126/DIY-SPO2-KiCAD-Project repository on GitHub. It is a 4-layer board of 75 × 50 mm with 19 parts on 31 nets, routed with 62 tracks and 3 vias.
It is built around the MAX30102. Its parts include 4 resistors, 3 capacitors and 2 ICs. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
1Parts
19| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R4 |
| 3 | 100nF | Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm | C1, C2, C3 |
| 3 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | DOWN, MENU, UP |
| 1 | Arduino_Nano_v3.x | Module:Arduino_Nano | A1 |
| 1 | LED | LED_THT:LED_D5.0mm | ALARM |
| 1 | LOGO | LOGO | G*** |
| 1 | MAX30102 | spo2_stuff:MAX30102_MODULE | U1 |
| 1 | SSD1306 | spo2_stuff:SSD1306 | U2 |
The 15 most common of 19 parts.
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Questions
How big is the DIY SPO2-KiCAD Project PCB?
It measures 75 × 50 mm and has 4 copper layers, 1.6 mm thick.
What parts does the DIY SPO2-KiCAD Project use?
19 parts, built around the MAX30102. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the DIY SPO2-KiCAD Project KiCad files?
From the Soham3126/DIY-SPO2-KiCAD-Project repository on GitHub, at the commit this page was made from: the board is Project.kicad_pcb and its schematic Project.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the DIY SPO2-KiCAD Project design in my own project?
Its repository states no licence, so its author keeps all rights: ask Soham3126 before reusing the design.