4 layers8.1 × 45.7 mm
2 layers79 × 49.8 mm
Integrated PCB Design Projects
- Size
- 79 × 49.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 18
- Nets
- 32
- Pads
- 71
- Tracks, vias
- 104, 13
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 26 Jan 2026
- Updated
- 26 Jan 2026
Overview
SPO2 is an open-source printed circuit board by Haylie-dt, from the Haylie-dt/PCB-Projects repository on GitHub. It is a 2-layer board of 79 × 49.8 mm with 18 parts on 32 nets, routed with 104 tracks and 13 vias.
It is built around the MAX30102. Its parts include 4 resistors, 3 capacitors, 2 ICs and 1 diode. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdPCB-Projects
Integrated PCB Design Projects
Parts
18| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R3, R4 |
| 3 | 100nF_Ceramic | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C1, C2, C3 |
| 3 | Push_Button | Button_Switch_THT:SW_PUSH_6mm | DOWN, MENU, UP |
| 1 | Arduino_Nano_v3.x | Module:Arduino_Nano | A1 |
| 1 | Battery | TerminalBlock:TerminalBlock_Xinya_XY308-2.54-2P_1x02_P2.54mm_Horizontal | BT1 |
| 1 | LED_5mm | LED_THT:LED_D5.0mm | D1 |
| 1 | LOGO | Images:logo3 | G*** |
| 1 | MAX30102 | Custom_spot:MAX30102_Module | U1 |
| 1 | OLED_SCREEN | Custom_spot:SSD 1306 OLED SCCREEN | U2 |
The 16 most common of 18 parts.
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Questions
How big is the SPO2 PCB?
It measures 79 × 49.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the SPO2 use?
18 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 SPO2 KiCad files?
From the Haylie-dt/PCB-Projects repository on GitHub, at the commit this page was made from: the board is SPO2/SPO2.kicad_pcb and its schematic BMS SMD/1S BMS SMD Mode.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SPO2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask Haylie-dt before reusing the design.