HardLabs

Pcb mixer

anqueue·pcb-mixer

Pcb mixer layout, top view — open source AVR/Arduino board by anqueue

About the Pcb mixer

Pcb mixer is an open source AVR/Arduino PCB design by anqueue, published on GitHub. It is a 2-layer board measuring 113 × 76 mm, with 6 components from 2 distinct parts.

Its main chip is the ProMicro, from the AVR/Arduino family.

It belongs with the audio designs in this gallery.

From the project

Custom designed PCB to manage audio levels through serial communication with Arduino

Deej is an open source project that allows an Arduino to control the volume of applications (https://github.com/omriharel/deej). I wanted to make my own mixer for this, however I don't have a 3d printer. Instead I opted for sandwiching two PCBs to house the electronics and connect the sliders to the Arduino.

The PCBs, Arduino Pro Micros, Poteniometers, soldering iron, bolts, and nuts, costed around $50-60.

Main components on the Pcb mixer

ProMicro

Pcb mixer bill of materials (BOM)

6 components, 2 distinct parts.

QtyPartRefs
1
ProMicro
U1
5
Slider
VR1, VR2, VR3, VR4, VR5

Pcb mixer design files

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

Pcb mixer: common questions

What microcontroller does the Pcb mixer use?

The Pcb mixer is built around the ProMicro, from the AVR/Arduino family.

How big is the Pcb mixer?

The Pcb mixer measures 113 × 76 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Pcb mixer?

6 components, from 2 distinct parts. The full bill of materials is listed on this page.

Where can I download the Pcb mixer design files?

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

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

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

Can I test firmware for the Pcb mixer 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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