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2 layers25.8 × 37.2 mmTuxtag pcb, the printed circuit board in 3D
Size
25.8 × 37.2 mm
Copper layers
2
Thickness
1.6 mm
Parts
13
Nets
9
Pads
41
Tracks, vias
92, 6
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
15 Feb 2026
Updated
2 Apr 2026

Overview

Tuxtag pcb is an open-source printed circuit board by TuxElectronics, from the TuxElectronics/tuxtag-hardware repository on GitHub, published under the CERN-OHL-S-2.0 licence. It is a 2-layer board of 25.8 × 37.2 mm with 13 parts on 9 nets, routed with 92 tracks and 6 vias.

It is built around the OVLAW4CB7. Its parts include 4 resistors, 4 diodes, 3 connectors, 1 IC and 1 transistor. It belongs with the ESP32 and RISC-V boards of this library.

Main components

1

README

README.md

TuxTag Hardware

Open source BLE tracker electronics.

Status

Design phase completed. Still undergoing testing.

Contents

  • schematic/ — Circuit diagrams
  • pcb/ — Board layout and Gerbers
  • bom/ — Bill of materials

Photo

pcb-screenshot

License

CERN Open Hardware Licence Version 2 - Strongly Reciprocal (CERN-OHL-S)

Parts

13
QtyValueFootprintReferences
4RResistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_HorizontalR1, R2, R3, R4
3OVLAW4CB7OVLAW4CB7:LEDRD254W50D305H520PD2, D3, D4
11N41481N4148:DO35-7D1
1ESP32-C3_SUPERMINI_THESP32-C3_SUPERMINI_TH:MODULE_ESP32-C3_SUPERMINI_THU1
1P2N2222AP2N2222A:TO92Q1
1batteryConnector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_HorizontalJ2
1buzzerConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ3
1vibratorConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ1

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Questions

How big is the Tuxtag pcb PCB?

It measures 25.8 × 37.2 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Tuxtag pcb use?

13 parts, built around the OVLAW4CB7. 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 Tuxtag pcb KiCad files?

From the TuxElectronics/tuxtag-hardware repository on GitHub, at the commit this page was made from: the board is pcb/tuxtag-pcb.kicad_pcb and its schematic schematic/tuxtag-pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Tuxtag pcb design in my own project?

Its repository publishes it under the CERN-OHL-S-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).