HardLabs

ISOlation

str-dst·ISOlation·pcb/iso.kicad_pcb

ISOlation PCB layout, top view — open source AVR/Arduino board by str-dst
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About the ISOlation PCB

ISOlation is an open source AVR/Arduino PCB design by str-dst, published on GitHub. It is a 2-layer board measuring 27.5 × 40.3 mm, with 20 components from 14 distinct parts.

Its main chip is the ATMEGA328P-AU, from the AVR/Arduino family. Other key parts include the SRV05-4. By type, the board carries 5 resistors, 4 LEDs, 3 capacitors, 2 ICs, 2 diodes and 1 crystal.

It belongs with the keyboards designs in this gallery.

From the project

ISO single-key "macropad"

- Full key and stabilizer RGB - Screw-in stabilizer support - Powered by an Atmega328p - Basic ESD and overvoltage protection - Centered USB type-C port for a detachable cable - Fully programmable using QMK and Vial

ISOlation, from the project README
From the project README

Main components on the ISOlation

ATMEGA328P-AUSRV05-4

ISOlation bill of materials (BOM)

20 components, 14 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA328P-AU
ATmega328P-AU
U1
1
SRV05-4
U2
1
CRYSTAL_GND24_SMALL
Crystal_GND24_Small
X1
1
Conn_01x06
J1
1
C69688
Polyfuse_Small
F1
1
USB_C_RECEPTACLE_USB2.0
USB_C_Receptacle_USB2.0
USB1
3
SK6812MINI
LED1, LED2, LED3
1
MX-NoLED
MX1
2
C401091
D_Zener_Small
D1, D2
1
10UF
10uF
C1
2
22PF
22pF
C7, C8
2
5.1K
5.1k
R1, R2
1
1.5K
R3
2
68R
R4, R5

ISOlation design files

The KiCad project lives in the str-dst/ISOlation repository on GitHub; these links point at the commit this page was built from.

ISOlation: common questions

What microcontroller does the ISOlation use?

The ISOlation is built around the ATMEGA328P-AU, from the AVR/Arduino family.

How big is the ISOlation PCB?

The ISOlation measures 27.5 × 40.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ISOlation?

20 components, from 14 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the ISOlation design files?

From the str-dst/ISOlation repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the ISOlation design in my own project?

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

Can I test firmware for the ISOlation 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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