HardLabs

Stratum

gonzacba17·stratum·exports_validation/sample.kicad_pcb

Stratum PCB layout, top view — open source ESP32 board by gonzacba17
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About the Stratum PCB

Stratum is an open source ESP32 PCB design by gonzacba17, published on GitHub. It is a 2-layer board measuring 226 × 69 mm, with 6 components from 6 distinct parts.

Its main chip is the esp32, from the ESP32 family. Other key parts include the LCD_I2C Sensor. By type, the board carries 2 ICs, 2 resistors and 1 capacitor.

It belongs with the robotics & motion, displays & leds and sensors designs in this gallery.

From the project

Hardware Memory Engine — Local AI agent for programming microcontrollers

Stratum is a local AI agent for electronics, microcontrollers, circuit design, firmware generation and persistent engineering memory.

Current status: local release, 27 working features, 0 broken features, 2 experimental export paths, 1437 pytest tests passing.

External DRC (kicad-cli, KiCad 10.0.5) on a real synthesized board: 64 actionable violations, down from 121. Not manufacturable yet — see "Remaining external validation" below.

Main components on the Stratum

esp32LCD_I2C Sensor

Stratum bill of materials (BOM)

6 components, 6 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
esp32
U1
1
LCD_I2C Sensor
U2
1
5V
RL1
1
100nF
C1
1
220
4700Ω
R1
1
4700Ω
R2

Stratum design files

The KiCad project lives in the gonzacba17/stratum repository on GitHub; these links point at the commit this page was built from.

Stratum: common questions

What microcontroller does the Stratum use?

The Stratum is built around the esp32, from the ESP32 family.

How big is the Stratum PCB?

The Stratum measures 226 × 69 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Stratum?

6 components, from 6 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 Stratum design files?

From the gonzacba17/stratum 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 Stratum design in my own project?

The repository has no license, so all rights stay with gonzacba17. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Stratum without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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