Testolomew
Architeuthis-Flux·Testolomew·Hardware/WigLEDmag/WigLEDmag.kicad_pcb
About the Testolomew PCB
Testolomew is an open source PCB design by Architeuthis-Flux, published on GitHub. It is a 4-layer board measuring 78.7 × 58.4 mm, with 548 components from 23 distinct parts.
Other key parts include the TCA9548APWR, MMC5603NJL and AP2127N-3.3. By type, the board carries 480 diodes, 23 capacitors, 16 connectors, 12 ICs, 9 modules and 5 jumpers.
It belongs with the iot & wireless, displays & leds and sensors designs in this gallery.
From the project
Wireless 3D probing tests for V6
The test bed for Jumperless V6 ideas: a nanoCH32H417 dev board (WCH CH32H417, the coprocessor planned for V6), PlatformIO, and firmware laid out like JumperlOS so that whatever works here can be carried over.
https://github.com/user-attachments/assets/b5ab7e08-0d18-4ef3-8981-44c797199041
First experiment: locating a magnet in 3D with a 4×2 array of TMAG5273 Hall sensors (plus, since 2026-09-21, an MMC5633NJL AMR magnetometer at the centre of the same array - the sensor table mixes types), as a way to track a cable-free probe, and showing it on the board's LCD.

Main components on the Testolomew
Testolomew bill of materials (BOM)
548 components, 23 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TCA9548APWR | VQFN-24-1EP_4x4mm_P0.5mm_EP2.45x2.45mm | U1 |
| 8 | MMC5603NJL | WLP-4_0.86x0.86mm_P0.4mm | U2, U4, U5, U6, U7, U8, U9, U10 |
| 1 | AP2127N-3.3 | SOT-23 | U3 |
| 2 | ~ | Maxim_WLP-12_2.008x1.608mm_Layout4x3_P0.4mm | U11, U12 |
| 9 | ~ | SOT-23-6_TMAG5273 | M51, M52, M53, M54, M55, M56, M57, M58 +1 |
| 1 | SENSE_60 | Conn_1x1_SenseRiser | J1 |
| 1 | BARNACLE_CONNECTOR_70PIN Barnacle_Connector_70pin | PinHeader_2x35_P1.27_wiig_card | J2 |
| 1 | BARNACLE_CONNECTOR_70PIN Barnacle_Connector_70pin | SideConnect_sparserrr_Bottom_tighter | J3 |
| 1 | SENSE_1 | Conn_1x1_SenseRiser | J4 |
| 1 | SENSE_30 | Conn_1x1_SenseRiser | J5 |
| 1 | SENSE_31 | Conn_1x1_SenseRiser | J6 |
| 2 | CONN_01X01 Conn_01x01 | Banana_Plus_sm | J7, J9 |
| 2 | CONN_01X01 Conn_01x01 | Banana_Minus_sm | J8, J10 |
| 1 | ~ | Breadboard_6NonHoles | J11 |
| 2 | CONN_01X32 Conn_01x32 | fulledge_gap | J12, J13 |
| 3 | CONN_01X01 Conn_01x01 | PinHeader_1x1_Smallest | J14, J15, J16 |
| 2 | JUMPER_2_OPEN Jumper_2_Open | SolderJumper_2_Open_Small | JP1, JP2 |
| 3 | M~{INT} | SolderJumper_2_Bridged_Small | JP3, JP4, JP5 |
| 1 | LED OUT | PinHeader_1x1_0.6mm_tinyAF | TP3 |
| 480 | WS2812B | WS2812B-1313 | D11, D12, D13, D14, D15, D16, D21, D22 +472 |
Show 3 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 14 | 1UF 1uF | C_0402_1005Metric | C1, C2, C3, C4, C5, C6, C7, C8 +6 |
| 9 | 0.1UF 0.1uF | C_0402_1005Metric | C15, C16, C17, C18, C19, C20, C21, C22 +1 |
| 2 | 4.7K | R_0603_1608Metric | R1, R2 |
Testolomew design files
The KiCad project lives in the Architeuthis-Flux/Testolomew repository on GitHub; these links point at the commit this page was built from.
Testolomew: common questions
How big is the Testolomew PCB?
The Testolomew measures 78.7 × 58.4 mm, has 4 copper layers and is 1.4 mm thick.
How many components are on the Testolomew?
548 components, from 23 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 Testolomew design files?
From the Architeuthis-Flux/Testolomew 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 Testolomew design in my own project?
The repository has no license, so all rights stay with Architeuthis-Flux. Use it as a reference, and ask the author before reusing the design.
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