2 layers19 × 76 mm
Sub
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
15 parts3kApache-2.0
2 layers70.1 × 55.4 mm
QUARK SuperMini Carrier
ElevenOctober/quarkA plug-and-play ESP32-C3 desktop monitor for real-time Codex AI usage, quotas, tokens, and system telemetry.
- Size
- 70.1 × 55.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 15
- Nets
- 19
- Pads
- 45
- Tracks, vias
- 122, 2
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 27 Oct 2026
- Updated
- 2 Nov 2026
Overview
QUARK SuperMini Carrier is an open-source printed circuit board by ElevenOctober, from the ElevenOctober/quark repository on GitHub. It is a 2-layer board of 70.1 × 55.4 mm with 15 parts on 19 nets, routed with 122 tracks and 2 vias.
Its parts include 3 connectors, 2 capacitors, 2 resistors, 2 diodes and 1 IC. It belongs with the lEDs and displays boards and the ESP32 and RISC-V boards of this library.
README
hardware/QUARK_SuperMini_Carrier/README.mdQUARK ESP32-C3 SuperMini Carrier
KiCad source for a two-layer carrier board that connects QUARK's ESP32-C3 SuperMini, OLED, mode switch, page button, passive piezo, and red/blue status LEDs.
Design files
QUARK_SuperMini_Carrier.kicad_pro: KiCad project.QUARK_SuperMini_Carrier.kicad_sch: schematic.QUARK_SuperMini_Carrier.kicad_pcb: routed PCB.QUARK.kicad_sym,QUARK.pretty/, and the library tables: project-local symbol and footprint libraries.BOM.csv: board and off-board parts.firmware/QUARK_ESP32-C3_SuperMini_CDC.bin: merged 4 MB ESP32-C3 flash image with USB CDC on boot enabled.fabrication/: Gerbers, Excellon drill files, and drill maps.preview/: schematic and board preview images.scripts/generate_schematic.pyandscripts/generate_board.py: source generators.
Board and module fit
The carrier outline is 70.104 × 55.372 mm, 1.6 mm thick, with four 3.2 mm non-plated M3 holes. The module footprint is for an ESP32-C3 SuperMini with two 8-pin rows on 2.54 mm pitch and 15.24 mm between row centers. Fit two 1×8 female socket strips to the carrier, then plug the module in with its USB-C connector toward the board's top edge. The nominal module outline is 22.52 × 18 mm per the module datasheet; SuperMini clones vary, so compare the module and header spacing before ordering a batch.
Connectors and assembly
All board connectors use 2.54 mm pitch. Connector pin 1 is identified on the silkscreen.
| Ref. | Pin order | Connection |
|---|---|---|
| J1 | GND, 3V3, SCL, SDA | External 128×64 OLED; SCL is GPIO1 and SDA is GPIO0. |
| J2 | AI, COM, SYS OPEN | SPDT mode switch: connect COM to AI/GND for AI mode; leave COM open for System mode (INPUT_PULLUP). |
| J3 | GPIO5, GND | Passive piezo disc only; plays startup/control tones and the new-connection acknowledgement. |
| SW1 | N/A | Page/refresh button from GPIO3 to GND. |
| D1, D2 | N/A | Red and blue active-high status LEDs, each with a 330 Ω series resistor. |
The OLED module and mode switch are off-board. J1–J3 are plated header footprints; install pin headers or solder leads as needed. Do not connect a high-current magnetic buzzer directly to GPIO5. The ESP32-C3 SuperMini provides the USB interface and board-level power regulation.
Fabrication
The fabrication/ folder contains copper, solder-mask, silkscreen, paste, and outline Gerbers, plus separate PTH and NPTH Excellon files and drill maps. Upload QUARK_SuperMini_Carrier_gerbers.zip to the board fabricator, or upload the individual Gerber and drill files. The board uses two copper layers and a 1.6 mm FR-4 stackup.
Validation
The checked-in design was checked with KiCad CLI 10.0.7. The 2026-11-02 reports contain zero included ERC/DRC violations, zero unconnected items, and zero schematic-parity issues. They also have 4 ERC checks and 7 DRC checks explicitly ignored; see docs/verification.md for the exact list. Zero included violations is not a complete manufacturing or assembly certification. Re-run checks after edits with KiCad 10:
kicad-cli sch erc QUARK_SuperMini_Carrier.kicad_sch
kicad-cli pcb drc --schematic-parity --refill-zones QUARK_SuperMini_Carrier.kicad_pcbParts
15| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | Mounting hole M3 NPTH | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 2 | 330R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2 |
| 1 | 100nF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C2 |
| 1 | 10uF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C1 |
| 1 | Blue 3mm | LED_THT:LED_D3.0mm | D2 |
| 1 | ESP32-C3 SuperMini / 2x8 socket | QUARK:ESP32C3_SuperMini_Socket_2x8 | U1 |
| 1 | Mode: AI / COM / SYS(open) | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2 |
| 1 | OLED: GND / 3V3 / SCL / SDA | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1 |
| 1 | Page / refresh | Button_Switch_THT:SW_TH_Tactile_Omron_B3F-100x | SW1 |
| 1 | Passive piezo: GPIO / GND | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | Red 3mm | LED_THT:LED_D3.0mm | D1 |
Questions
How big is the QUARK SuperMini Carrier PCB?
It measures 70.1 × 55.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the QUARK SuperMini Carrier use?
15 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the QUARK SuperMini Carrier KiCad files?
From the ElevenOctober/quark repository on GitHub, at the commit this page was made from: the board is hardware/QUARK_SuperMini_Carrier/QUARK_SuperMini_Carrier.kicad_pcb and its schematic hardware/QUARK_SuperMini_Carrier/QUARK_SuperMini_Carrier.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the QUARK SuperMini Carrier design in my own project?
Its repository states no licence, so its author keeps all rights: ask ElevenOctober before reusing the design.
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