HardLabs

Angel

jamessa·Angel·ProMicroKit/Charming.kicad_pcb

Angel PCB layout, top view — open source AVR/Arduino board by jamessa

About the Angel PCB

Angel is an open source AVR/Arduino PCB design by jamessa, published on GitHub. It is a 2-layer board measuring 270.8 × 80.8 mm, with 97 components from 3 distinct parts.

Its main chip is the ProMicro, from the AVR/Arduino family. By type, the board carries 48 switches, 48 diodes and 1 IC.

It belongs with the keyboards designs in this gallery.

From the project

Angel - a symmetrical staggered ergonomic keyboard.

Hand wired QMK is almost ready. https://github.com/qmk/qmk_firmware/pull/11501

A symmetric staggered ergonomic keyboard.

A slightly ergonomic keyboard that fits into 60% form factor.

* Fitts' law is respected. Four corner keys are maximized while [you shall no call its name] is break into 3 keys. The gaint space bar is a huge waste ot thumb(s). It breaks into 1.25, 1.5, 1.25 to free it up. My favorite combination is, backspace, enter, whitespace.

Angel, from the project README
From the project README

Main components on the Angel

ProMicro

Angel bill of materials (BOM)

97 components, 3 distinct parts.

QtyPartRefs
1
ProMicro
U1
48
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +40
48
D
D1, D2, D3, D4, D5, D6, D7, D8 +40

Angel design files

The KiCad project lives in the jamessa/Angel repository on GitHub; these links point at the commit this page was built from.

Angel: common questions

What microcontroller does the Angel use?

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

How big is the Angel PCB?

The Angel measures 270.8 × 80.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Angel?

97 components, from 3 distinct parts. The full bill of materials is listed on this page.

Where can I download the Angel design files?

From the jamessa/Angel repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Angel design in my own project?

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

Can I test firmware for the Angel 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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