Audio c
About the Audio c PCB
Audio c is an open source STM32 PCB design by ArgonautGit, published on GitHub. It is a 2-layer board measuring 9.5 × 38 mm, with 20 components from 10 distinct parts.
Its main chip is the STM32G031J6Mx, from the STM32 family. Other key parts include the SGTL5000XNLA3, MIC5504-1.8YM5, MIC5504-3.3YM5 and SPH8878LR5H-1. By type, the board carries 12 capacitors, 5 ICs, 2 connectors and 1 resistor.
It belongs with the audio designs in this gallery.
From the project
Just some Kicad projects I've worked on over the years. Most are unfinished or don't work well.
Main components on the Audio c
Audio c bill of materials (BOM)
20 components, 10 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SGTL5000XNLA3 | QFN-20-1EP_3x3mm_P0.4mm_EP1.65x1.65mm | U1 |
| 1 | MIC5504-1.8YM5 | SOT-23-5 | U2 |
| 1 | MIC5504-3.3YM5 | SOT-23-5 | U3 |
| 1 | SPH8878LR5H-1 | SPH8878LR5H-1 | U4 |
| 1 | STM32G031J6Mx | SOIC-8_3.9x4.9mm_P1.27mm | U5 |
| 1 | SJ1-2503A | CUI_SJ1-2503A | J1 |
| 1 | POWER_PADS | test_2_pad | J2 |
| 7 | 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C6, C8, C9, C10, C11 |
| 5 | 1uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C4, C5, C7, C12 |
| 1 | DNP | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1 |
Audio c design files
The KiCad project lives in the ArgonautGit/kicad-projects repository on GitHub; these links point at the commit this page was built from.
- Layoutaudio/audio_c.kicad_pcb
Audio c: common questions
What microcontroller does the Audio c use?
The Audio c is built around the STM32G031J6Mx, from the STM32 family.
How big is the Audio c PCB?
The Audio c measures 9.5 × 38 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Audio c?
20 components, from 10 distinct parts. The full bill of materials is listed on this page.
Where can I download the Audio c design files?
From the ArgonautGit/kicad-projects repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Audio c design in my own project?
The repository has no license, so all rights stay with ArgonautGit. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Audio c 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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