Vertex
str-dst·Vertex·pcb/vertex.kicad_pcb
About the Vertex PCB
Vertex is an open source AVR/Arduino PCB design by str-dst, published on GitHub. It is a 2-layer board measuring 247 × 78.9 mm, with 99 components from 20 distinct parts.
Its main chip is the ATMEGA32U2-AU, from the AVR/Arduino family. Other key parts include the SRV05-4. By type, the board carries 58 LEDs, 24 diodes, 6 capacitors, 6 resistors, 2 ICs and 1 crystal.
From the project
- Powered by an Atmega32u2 - Basic ESD and overvoltage protection - USB type-C port for a detachable cable - Multiple layout options (see below) - Fully programmable using QMK and Vial
- Powered by an Atmega32u2 - Basic ESD and overvoltage protection - USB type-C port for a detachable cable - Multiple layout options (see below) - Fully programmable using QMK and Vial
The two different lengths spacebars can be swapped.

Main components on the Vertex
Vertex bill of materials (BOM)
99 components, 20 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATMEGA32U2-AU ATmega32U2-AU | TQFP-32_7x7mm_P0.8mm | U1 |
| 1 | SRV05-4 | SOT-23-6 | U2 |
| 1 | CRYSTAL_GND24_SMALL Crystal_GND24_Small | Crystal_SMD_3225-4Pin_3.2x2.5mm | X1 |
| 1 | C69688 Polyfuse_Small | Fuse_1206_3216Metric | F1 |
| 1 | USB_C_RECEPTACLE_USB2.0 USB_C_Receptacle_USB2.0 | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | USB1 |
| 42 | MX-NoLED | MXOnly-1U-NoLED | MX1, MX2, MX3, MX4, MX5, MX6, MX7, MX8 +34 |
| 7 | MX-NoLED | MXOnly-1.25U-NoLED | MX14, MX37, MX39, MX40, MX43, MX44, MX66 |
| 2 | MX-NoLED | MXOnly-1.75U-NoLED | MX25, MX26 |
| 2 | MX-NoLED | MXOnly-1.5U-NoLED | MX38, MX45 |
| 2 | MX-NoLED | MXOnly-2.75U-ReversedStabilizers-NoLED | MX41, MX54 |
| 2 | MX-NoLED | MXOnly-2.25U-ReversedStabilizers-NoLED | MX42, MX55 |
| 1 | MX-NoLED | MXOnly-2U-NoLED | MX60 |
| 24 | C68978 D_Small | D_SOT-23_ANK_norm | D1, D2, D3, D4, D5, D6, D7, D8 +16 |
| 1 | 10UF 10uF | C_0805_2012Metric | C1 |
| 2 | 0.1UF 0.1uF | C_0805_2012Metric | C2, C3 |
| 2 | 22PF 22pF | C_0805_2012Metric | C4, C5 |
| 1 | 1UF 1uF | C_0805_2012Metric | C6 |
| 2 | 5.1K 5.1k | R_0805_2012Metric | R1, R2 |
| 2 | 22 | R_0805_2012Metric | R3, R4 |
| 2 | 10K 10k | R_0805_2012Metric | R5, R6 |
Vertex design files
The KiCad project lives in the str-dst/Vertex repository on GitHub; these links point at the commit this page was built from.
Vertex: common questions
What microcontroller does the Vertex use?
The Vertex is built around the ATMEGA32U2-AU, from the AVR/Arduino family.
How big is the Vertex PCB?
The Vertex measures 247 × 78.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Vertex?
99 components, from 20 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 Vertex design files?
From the str-dst/Vertex repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Vertex 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 Vertex 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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