HardLabs

Better erc

romixlab·better_erc·test_schematics/sources/i2c_segments.kicad_sch

This repository ships a schematic but no board layout.

About the Better erc PCB

Better erc is an open source STM32 PCB design by romixlab, published on GitHub. It is a board, with 29 components from 12 distinct parts.

Its main chip is the STM32F030F4Px, from the STM32 family. Other key parts include the PCA9536DP and PCA9306. By type, the board carries 16 resistors, 8 ICs, 4 transistors and 1 connector.

Main components on the Better erc

STM32F030F4PxPCA9536DPPCA9306

Better erc bill of materials (BOM)

29 components, 12 distinct parts.

QtyPartRefs
1
STM32F030F4Px
U401
6
PCA9536DP
U402, U403, U405, U406, U407, U408
1
PCA9306
U404
4
BSS138
Q401, Q402, Q403, Q404
1
Conn_01x03_Pin
J401
4
10K
R401, R402, R403, R404
2
0
R405, R406
2
2K2
R407, R408
2
3K3
R409, R411
4
4K7
R410, R412, R415, R416
1
10R
R413
1
1K
R414

Better erc design files

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

Better erc: common questions

What microcontroller does the Better erc use?

The Better erc is built around the STM32F030F4Px, from the STM32 family.

How many components are on the Better erc?

29 components, from 12 distinct parts. The full bill of materials is listed on this page.

Where can I download the Better erc design files?

From the romixlab/better_erc repository on GitHub, which has the schematic and a netlist; the links under Design files point to each one.

Can I use the Better erc design in my own project?

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

Can I test firmware for the Better erc 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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