HardLabs

Lumi tubule

NemoAndrea·lumi-tubule·pcb/lumi-tubule-board/lumi-tubule-board.kicad_pcb

Lumi tubule PCB layout, top view — open source ESP32 board by NemoAndrea

About the Lumi tubule PCB

Lumi tubule is an open source ESP32 PCB design by NemoAndrea, published on GitHub under the CERN-OHL-W-2.0 license. It is a 2-layer board measuring 83.1 × 83.1 mm, with 74 components from 21 distinct parts.

Its main chip is the ESP32-S3-MINI-1, from the ESP32 family. Other key parts include the SHTC3, VREG_SOT23-5 and LIS2Dx12. By type, the board carries 32 resistors, 14 diodes, 13 transistors, 4 ICs, 4 capacitors and 2 switches.

From the project

Decorative desk lamp in the shape of microtubule protein filament.

The LumiTubule PCB is generated with KiCad 6.0

Teardrops plugin (manual install - in PCBnew go to tools > external plugins > open plugin directory) Rounded tracks plugin (via plugin manager)

The graphics for the board are primarily created in Affinity Designer, with the help of Inkscape for some of the outline traces and image binarisation.

Some weird quirks during drawing process

Main components on the Lumi tubule

SHTC3VREG_SOT23-5ESP32-S3-MINI-1LIS2Dx12

Lumi tubule bill of materials (BOM)

74 components, 21 distinct parts.

QtyPartRefs
1
SHTC3
U1
1
VREG_SOT23-5
U2
1
ESP32-S3-MINI-1
U3
1
LIS2Dx12
U4
13
DMN1045UFR4
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +5
1
USB_C
X1
1
MF-NSMF200-2
2A-8V1
1
STEMMA_I2C_QTSKINNY
CONN1
2
5.1K
Rx1, Rx2
2
SWITCH_TACT_SMT4.6X2.8
SW1, SW2
13
flexible-led-filament
D1, D2, D3, D4, D5, D6, D7, D8 +5
1
LED
D14
1
22uF
C2
1
1uF
C3
1
10uF
C4
1
100nF
C5
1
5.1K
R1
13
10k
R2, R8, R9, R12, R13, R14, R15, R20 +5
4
4.7K
R3, R4, R5, R6
13
27
R7, R10, R11, R16, R17, R18, R19, R26 +5
Show 1 more
QtyPartRefs
1
5.1k
R32

Lumi tubule design files

The KiCad project lives in the NemoAndrea/lumi-tubule repository on GitHub; these links point at the commit this page was built from.

Lumi tubule: common questions

What microcontroller does the Lumi tubule use?

The Lumi tubule is built around the ESP32-S3-MINI-1, from the ESP32 family.

How big is the Lumi tubule PCB?

The Lumi tubule measures 83.1 × 83.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Lumi tubule?

74 components, from 21 distinct parts. The full bill of materials is listed on this page.

Where can I download the Lumi tubule design files?

From the NemoAndrea/lumi-tubule repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Lumi tubule design in my own project?

Yes, under the terms of its CERN-OHL-W-2.0 license, which NemoAndrea chose for the repository.

Can I test firmware for the Lumi tubule 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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