2 layers43.9 × 27.7 mm
2 layers154.2 × 85 mm
Mixer
mtshrmn/pulsarhardware volume mixer for pulseaudio
- Size
- 154.2 × 85 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 19
- Nets
- 39
- Pads
- 122
- Tracks, vias
- 279, 56
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 20 Jul 2024
- Updated
- 14 May 2026
Overview
Mixer is an open-source printed circuit board by mtshrmn, from the mtshrmn/pulsar repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 154.2 × 85 mm with 19 parts on 39 nets, routed with 279 tracks and 56 vias.
Its parts include 9 ICs, 5 capacitors and 5 resistors. It belongs with the audio and music boards of this library.
README
README.mdPulsar - PulseAudio Volume Mixer
Hardware Wiring
Parts
19| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100nF | PCM_SL_Devices:Mylar_Capacitor | C1, C2, C3, C4, C5 |
| 5 | 10k | PCM_Resistor_THT_AKL:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R1, R2, R3, R4, R5 |
| 4 | ~ | mixer:ST7780_1_69 | U2, U3, U4, U5 |
| 4 | ~ | mixer:KY-040-PORT | U6, U7, U8, U9 |
| 1 | Arduino_Micro | Arduino:Arduino_Micro | U1 |
Questions
How big is the Mixer PCB?
It measures 154.2 × 85 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Mixer use?
19 parts. 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 Mixer KiCad files?
From the mtshrmn/pulsar repository on GitHub, at the commit this page was made from: the board is hardware/v1/mixer.kicad_pcb and its schematic hardware/v1/mixer.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mixer design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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