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Quefrency left macro

keebio·quefrency-rev1-pcb·spectrogram-left/quefrency-left-macro.kicad_pcb

Quefrency left macro PCB layout, top view — open source AVR/Arduino board by keebio
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About the Quefrency left macro PCB

Quefrency left macro is an open source AVR/Arduino PCB design by keebio, published on GitHub under the MIT license. It is a 2-layer board measuring 181 × 99.4 mm, with 93 components from 16 distinct parts.

Its main chip is the ProMicro, from the AVR/Arduino family. Other key parts include the TRRS. By type, the board carries 44 LEDs, 5 test points, 2 ICs and 2 resistors.

From the project

Quefrency Rev. 1 Keyboard PCB =============================

Quefrency Rev. 1 Keyboard PCB =============================

Files are provided as-is, as I haven't fully had the chance to clean everything up. The working name of the Quefrency was Spectrogram, hence some of the files being marked with that name.

If anyone wants to clean things up, go ahead and submit a PR. Thanks!

Main components on the Quefrency left macro

TRRSProMicro

Quefrency left macro bill of materials (BOM)

93 components, 16 distinct parts.

QtyPartRefs
1
TRRS
U1
1
ProMicro
U2
40
D
D_A1, D_A2, D_A3, D_A4, D_A5, D_A6, D_A7, D_A8 +32
1
VCC
TP1
1
C6
TP2
1
GND
TP3
1
RGB
TP4
1
Extra Data
TP6
32
SW_Push
SW_A1, SW_A2, SW_A3, SW_A4, SW_A5, SW_A6, SW_A7, SW_A8 +24
1
SW_Push
SW_B1
1
SW_Push
SW_C1
6
SW_Push
SW_CB1, SW_E1, SW_E2, SW_E3, SW_E7, SW_EB5
1
SW_Push
SW_D1
2
SW_Push
SW_E5, SW_EB7
1
Reset
SW_R1
2
4.7k
R1, R2

Quefrency left macro design files

The KiCad project lives in the keebio/quefrency-rev1-pcb repository on GitHub; these links point at the commit this page was built from.

Quefrency left macro: common questions

What microcontroller does the Quefrency left macro use?

The Quefrency left macro is built around the ProMicro, from the AVR/Arduino family.

How big is the Quefrency left macro PCB?

The Quefrency left macro measures 181 × 99.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Quefrency left macro?

93 components, from 16 distinct parts. The full bill of materials is listed on this page.

Where can I download the Quefrency left macro design files?

From the keebio/quefrency-rev1-pcb repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Quefrency left macro design in my own project?

Yes, under the terms of its MIT license, which keebio chose for the repository.

Can I test firmware for the Quefrency left macro 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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