HardLabs

Day 03 ECG SPO2

i2cjak·Framework_Expansion_Cards·Day_03_ECG_SPO2/Day_03_ECG_SPO2.kicad_pcb

Day 03 ECG SPO2 PCB layout, top view — open source STM32 board by i2cjak

About the Day 03 ECG SPO2 PCB

Day 03 ECG SPO2 is an open source STM32 PCB design by i2cjak, published on GitHub under the CERN-OHL-P-2.0 license. It is a 4-layer board measuring 26 × 30 mm, with 36 components from 24 distinct parts.

Its main chip is the STM32G0B1CEUx, from the STM32 family. Other key parts include the D3V3XA4B10LP, TLV9061xDBV, NCP115AMX250TCG and ADS1115IDGS. By type, the board carries 12 capacitors, 11 resistors, 7 ICs, 4 diodes and 2 connectors.

From the project

In which i2cjak creates a new expansion card design every day until he is given a NICE Framework laptop

This repository contains a KiCad project template provided by American Embedded. It is designed to be a starting point for new electronic designs, pre-configured with common settings, layers, and manufacturing outputs.

Manufacturing Outputs: Includes a Build.kicadjobset file for generating common manufacturing data for JLCPCB, NextPCB Build Script: A build.sh` script is provided to automate the process of running the jobset and formatting the component placement file.

Main components on the Day 03 ECG SPO2

D3V3XA4B10LPTLV9061xDBVSTM32G0B1CEUxNCP115AMX250TCGADS1115IDGS

Day 03 ECG SPO2 bill of materials (BOM)

36 components, 24 distinct parts.

QtyPartRefs
1
D3V3XA4B10LP
U1
3
TLV9061xDBV
U2, U3, U7
1
STM32G0B1CEUx
U4
1
NCP115AMX250TCG
U5
1
ADS1115IDGS
U6
1
USB_C_Plug_USB2.0
J1
1
Conn_01x01
J2
1
TVS
D1
1
940nm
D2
1
630nm
D3
1
VEMD2523SLX01
D4
1
100pF
C1
1
22pF
C2
8
1uF
C3, C5, C6, C7, C8, C9, C12, C13
1
100nF
C4
1
10uF
C10
1
470kR
R1
1
10MR
R2
2
100kR
R3, R5
1
10kR
R4
Show 4 more
QtyPartRefs
3
5.1kR
R6, R7, R8
1
220R
R9
1
150R
R10
1
330kR
R11

Day 03 ECG SPO2 design files

The KiCad project lives in the i2cjak/Framework_Expansion_Cards repository on GitHub; these links point at the commit this page was built from.

Day 03 ECG SPO2: common questions

What microcontroller does the Day 03 ECG SPO2 use?

The Day 03 ECG SPO2 is built around the STM32G0B1CEUx, from the STM32 family.

How big is the Day 03 ECG SPO2 PCB?

The Day 03 ECG SPO2 measures 26 × 30 mm, has 4 copper layers and is 0.8 mm thick.

How many components are on the Day 03 ECG SPO2?

36 components, from 24 distinct parts. The full bill of materials is listed on this page.

Where can I download the Day 03 ECG SPO2 design files?

From the i2cjak/Framework_Expansion_Cards repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Day 03 ECG SPO2 design in my own project?

Yes, under the terms of its CERN-OHL-P-2.0 license, which i2cjak chose for the repository.

Can I test firmware for the Day 03 ECG SPO2 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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