2 layers17.5 × 19.1 mm
4 layers17.8 × 19 mm
Ring motion rgb
whatnick/lantern_ring3Lantern Corps Style Ring, SW/HW/Jewellery Design
- Size
- 17.8 × 19 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 22
- Nets
- 20
- Pads
- 69
- Tracks, vias
- 0, 0
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 14 Nov 2021
- Updated
- 7 Nov 2026
Overview
Ring motion rgb is an open-source printed circuit board by whatnick, from the whatnick/lantern_ring repository on GitHub. It is a 4-layer board of 17.8 × 19 mm with 22 parts on 20 nets.
It is built around the ATTINY84A-MU, LIS2DW12TR-MS and IN-S128TATRGB. Its parts include 10 connectors, 4 resistors, 2 capacitors, 2 ICs and 1 diode. It belongs with the lEDs and displays boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
3
ATTINY84A-MU
QFN-20-EP(4x4)-40℃~+85℃ 1.8V~5.5V 10bit 12 20MHz 512Byte 512Byte 8 Bit 8KB AVR Built-in FLASH VQFN-20-EP(4x4) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
LIS2DW12TR-MS
LGA-12(2x2)-40℃~+85℃ 1.71V~3.6V 12bit 500nA Accelerometer SPI、I2C X,Y,Z ±16g LGA-12(2x2) Accelerometers ROHSMSKSEMIAccelerometersIN-S128TATRGB
1210RGB LEDsInolux
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
22| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 1k | R_0402_1005Metric | R1, R2, R3 |
| 2 | TestPoint | TestPoint:TestPoint_Pad_1.5x1.5mm | TP1, TP2 |
| 1 | 100nF MCU decoupling | C_0402_1005Metric | C1 |
| 1 | 100nF accelerometer decoupling | C_0402_1005Metric | C2 |
| 1 | 10k RESET pull-up | R_0402_1005Metric | R4 |
| 1 | ATtiny84A-MU | QFN-20-1EP_4x4mm_P0.5mm_EP2.6x2.6mm | U1 |
| 1 | B enable | SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | J3 |
| 1 | G enable | SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | J2 |
| 1 | GND | TestPoint_Pad_1.5x1.5mm | TP8 |
| 1 | IN-S128TATRGB | LED_RGB_1210 | D1 |
| 1 | LIS2DW12TR | LGA-12_2x2mm_P0.5mm | U2 |
| 1 | PB0 | TestPoint_Pad_1.5x1.5mm | P1 |
| 1 | PB1 | TestPoint_Pad_1.5x1.5mm | P2 |
| 1 | PB2 | TestPoint_Pad_1.5x1.5mm | P3 |
| 1 | PB3 | TestPoint_Pad_1.5x1.5mm | P4 |
| 1 | PB4 | TestPoint_Pad_1.5x1.5mm | P5 |
| 1 | PB5 | TestPoint_Pad_1.5x1.5mm | P6 |
| 1 | R enable | SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | J1 |
| 1 | VCC | TestPoint_Pad_1.5x1.5mm | P9 |
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Questions
How big is the Ring motion rgb PCB?
It measures 17.8 × 19 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Ring motion rgb use?
22 parts, built around the ATTINY84A-MU, LIS2DW12TR-MS and IN-S128TATRGB. 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 motion rgb 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_motion_rgb/ring_motion_rgb.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 motion rgb design in my own project?
Its repository states no licence, so its author keeps all rights: ask whatnick before reusing the design.