

Ring mono
Lantern Corps Style Ring, SW/HW/Jewellery Design
- Size
- 17.8 × 19 mm
- Copper layers
- 2
- Thickness
- 0.8 mm
- Parts
- 8
- Nets
- 2
- Pads
- 14
- Tracks, vias
- 12, 2
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 14 Nov 2021
- Updated
- 7 Nov 2026
Overview
Ring mono is an open-source printed circuit board by whatnick, from the whatnick/lantern_ring repository on GitHub. It is a 2-layer board of 17.8 × 19 mm with 8 parts on 2 nets, routed with 12 tracks and 2 vias.
README
hardware/v2.0/ring_mono/README.mdLantern Ring Mono PCB
Production boards use 0.8 mm FR-4, 1 oz copper, and lead-free HASL. Each assembled variant fits the same LED MPN at D1-D6; TP1 and TP2 are copper contacts and are not fitted components.
| Variant | LED MPN | Solder mask | Silkscreen |
|---|---|---|---|
| White / Life | IN-S126ASUW | White | Black |
| UV / Death | SM1206UV-400-IL | Black | White |
| Red / Rage | APTL3216SURCK | Red | White |
| Orange / Avarice | APTL3216SECK-01 | Yellow | Black |
| Yellow / Fear | APTL3216SYCK | Yellow | Black |
| Green / Will | APTD3216MGC | Green | White |
| Blue / Hope | APT3216QBC/D | Blue | White |
| Indigo / Compassion | APTR3216-VFX | Purple | White |
| Pink / Love | APT3216PBC/RV | Purple | White |
| Invisible / Infrared | AP3216F3C | Black | White |
Orange, indigo, pink, and infrared use the closest available PCB colors. Confirm exact LED substitutions and fabrication colors before production.
Parts
8| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | LED | LED_SMD:LED_1206_3216Metric | D1, D2, D3, D4, D5, D6 |
| 2 | TestPoint | TestPoint:TestPoint_Pad_1.5x1.5mm | TP1, TP2 |
Questions
How big is the Ring mono PCB?
It measures 17.8 × 19 mm and has 2 copper layers, 0.8 mm thick.
What parts does the Ring mono use?
8 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 Ring mono KiCad files?
From the whatnick/lantern_ring repository on GitHub, at the commit this page was made from: the board is hardware/v2.0/ring_mono/ring_mono.kicad_pcb and its schematic hardware/v1.0/ring_pcb/ring_pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Ring mono design in my own project?
Its repository states no licence, so its author keeps all rights: ask whatnick before reusing the design.
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