HardLabs

Goldfish v2

Salicylic-acid3·PCB_Data·KeebMicro-C/kmc.kicad_pcb

Goldfish v2 PCB layout, top view — open source AVR/Arduino board by Salicylic-acid3
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About the Goldfish v2 PCB

Goldfish v2 is an open source AVR/Arduino PCB design by Salicylic-acid3, published on GitHub under the MIT license. It is a 2-layer board measuring 17.4 × 32.6 mm, with 26 components from 16 distinct parts.

Its main chip is the ATmega32U4-M, from the AVR/Arduino family. Other key parts include the USBLC6-2P6. By type, the board carries 10 capacitors, 6 resistors, 5 connectors, 2 ICs, 1 crystal and 1 fuse.

It belongs with the keyboards designs in this gallery.

From the project

The KeebMicro-C is a Pro Micro compatible microcontroller board designed for DIY mechanical keyboards in Japan. It is based on the same Atmel ATMega32U4 chip and can be programmed using Arduino IDE or keyboard-specific firmware such as TMK or QMK. Conthrough, commonly used in Jap

The KeebMicro-C is a Pro Micro compatible microcontroller board designed for DIY mechanical keyboards in Japan. It is based on the same Atmel ATMega32U4 chip and can be programmed using Arduino IDE or keyboard-specific firmware such as TMK or QMK. Conthrough, commonly used in Japan, eliminates the need for soldering.

- Conthrough support - Reduced board outline - Changed logo - Added through-hole for external USB connector

Goldfish v2, from the project README
From the project README

Main components on the Goldfish v2

ATmega32U4-MUSBLC6-2P6

Goldfish v2 bill of materials (BOM)

26 components, 16 distinct parts.

QtyPartRefs
1
ATmega32U4-M
U1
1
USBLC6-2P6
U2
1
16MHz
X1
1
USB_C_Receptacle_USB2.0
J1
1
Conn_01x02
J2
2
Conn_01x12
J3, J4
1
Conn_01x05
J5
1
500mA
F1
1
D_Schottky
D1
6
0u1
C1, C2, C3, C4, C5, C10
1
4u7
C6
2
22p
C7, C8
1
1u
C9
2
5k1
R1, R2
2
10k
R3, R6
2
22
R4, R5

Goldfish v2 design files

The KiCad project lives in the Salicylic-acid3/PCB_Data repository on GitHub; these links point at the commit this page was built from.

Goldfish v2: common questions

What microcontroller does the Goldfish v2 use?

The Goldfish v2 is built around the ATmega32U4-M, from the AVR/Arduino family.

How big is the Goldfish v2 PCB?

The Goldfish v2 measures 17.4 × 32.6 mm, has 2 copper layers and is 1.2 mm thick.

How many components are on the Goldfish v2?

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

Where can I download the Goldfish v2 design files?

From the Salicylic-acid3/PCB_Data repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Goldfish v2 design in my own project?

Yes, under the terms of its MIT license, which Salicylic-acid3 chose for the repository.

Can I test firmware for the Goldfish v2 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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