HardLabs

AnnovaX75

arnav-kr·AnnovaX75·PCB/keyboard.kicad_pcb

AnnovaX75 PCB layout, top view — open source RP2040/RP2350 board by arnav-kr
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About the AnnovaX75 PCB

AnnovaX75 is an open source RP2040/RP2350 PCB design by arnav-kr, published on GitHub under the AGPL-3.0 license. It is a 2-layer board measuring 323.9 × 131 mm, with 169 components from 12 distinct parts.

Its main chip is the RaspberryPi_Pico, from the RP2040/RP2350 family. By type, the board carries 83 switches, 83 diodes, 2 connectors and 1 IC.

It belongs with the keyboards designs in this gallery.

From the project

A 75% Mechanical Keyboard, custom built from scratch.

A 75% Mechanical Keyboard, custom built from scratch.

The case is designed to be 3D printed and features a sandwich mount design with a 6° typing angle. The bottom case, top case, plate, and knob are all designed to be printed.

AnnovaX75, from the project README
From the project README

Main components on the AnnovaX75

RaspberryPi_Pico

AnnovaX75 bill of materials (BOM)

169 components, 12 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
RaspberryPi_Pico
U1
1
CONN_01X06_PIN
Conn_01x06_Pin
J1
1
CONN_01X02_PIN
Conn_01x02_Pin
J2
71
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +63
1
RotaryEncoder_Switch
SW15
1
SW_Push
SW29
2
SW_Push
SW31, SW44
2
SW_Push
SW46, SW71
2
SW_Push
SW58, SW60
3
SW_Push
SW74, SW75, SW76
1
SW_Push
SW77
83
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +75

AnnovaX75 design files

The KiCad project lives in the arnav-kr/AnnovaX75 repository on GitHub; these links point at the commit this page was built from.

AnnovaX75: common questions

What microcontroller does the AnnovaX75 use?

The AnnovaX75 is built around the RaspberryPi_Pico, from the RP2040/RP2350 family.

How big is the AnnovaX75 PCB?

The AnnovaX75 measures 323.9 × 131 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the AnnovaX75?

169 components, from 12 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 AnnovaX75 design files?

From the arnav-kr/AnnovaX75 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the AnnovaX75 design in my own project?

Yes, under the terms of its AGPL-3.0 license, which arnav-kr chose for the repository.

Can I test firmware for the AnnovaX75 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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