HardLabs

Pcb journey

hardikrawat910-byte·pcb-journey·boards/01-pulse-monitor/hardware/Praticenew.kicad_pcb

Pcb journey layout, top view — open source AVR/Arduino board by hardikrawat910-byte

About the Pcb journey

Pcb journey is an open source AVR/Arduino PCB design by hardikrawat910-byte, published on GitHub. It is a 2-layer board measuring 82 × 49 mm, with 10 components from 6 distinct parts.

Its main chip is the ARDUINO_NANO_V3.X, from the AVR/Arduino family. Other key parts include the MAX30102 and SSD1306. By type, the board carries 4 resistors, 3 capacitors, 2 ICs and 1 module.

From the project

This is my first PCB, designed from scratch in KiCad 9 on 12–13 October 2026. It is a carrier board that joins an Arduino Nano, a MAX30102 heart-rate and SpO₂ sensor, a 0.96" SSD1306 OLED and three navigation buttons, with an alarm LED. It is laid out for a pulse-monitor build.

This is my first PCB, designed from scratch in KiCad 9 on 12–13 October 2026. It is a carrier board that joins an Arduino Nano, a MAX30102 heart-rate and SpO₂ sensor, a 0.96" SSD1306 OLED and three navigation buttons, with an alarm LED. It is laid out for a pulse-monitor build.

Both modules share one I²C bus. Their addresses don't clash: 0x57 for the MAX30102 and 0x3C for the SSD1306. The full parts list is in bom/BOM.csv.

Pcb journey, from the project README
From the project README

Main components on the Pcb journey

MAX30102SSD1306ARDUINO_NANO_V3.X

Pcb journey bill of materials (BOM)

10 components, 6 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MAX30102
U1
1
SSD1306
OLED
U2
1
ARDUINO_NANO_V3.X
Arduino_Nano_v3.x
A1
3
100N
100n
C1, C2, C3
3
10K
10k
R1, R2, R3
1
1k
R4

Pcb journey design files

The KiCad project lives in the hardikrawat910-byte/pcb-journey repository on GitHub; these links point at the commit this page was built from.

Pcb journey: common questions

What microcontroller does the Pcb journey use?

The Pcb journey is built around the ARDUINO_NANO_V3.X, from the AVR/Arduino family.

How big is the Pcb journey?

The Pcb journey measures 82 × 49 mm, has 2 copper layers and is 1.600198 mm thick.

How many components are on the Pcb journey?

10 components, from 6 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Pcb journey design files?

From the hardikrawat910-byte/pcb-journey repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Pcb journey design in my own project?

The repository has no license, so all rights stay with hardikrawat910-byte. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Pcb journey without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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