2 layers
38c3PCBLEDC100R Rev.0
c3re/38c3PCBLEDC100R
Solder-Kit with some LEDs. Can also be used as a coaster for drinks.
28 parts1CC-BY-4.0
2 layers
39c3PCBLEDC100R Rev.0
c3re/39c3PCBLEDC100R15The 39c3PCBLEDC100 is a Coaster for your drinks with option for LED and microcontroller upgrade. By stacking the coasters, you can also build nice blinky towers.
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 26
- Pads
- 110
- Tracks, vias
- 149, 0
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 22 Oct 2025
- Updated
- 11 Jan 2026
Overview
39c3PCBLEDC100R Rev.0 is an open-source printed circuit board by c3re, from the c3re/39c3PCBLEDC100R repository on GitHub, published under the CC-BY-4.0 licence. It is a 2-layer board with 28 parts on 26 nets, routed with 149 tracks and 0 vias.
It is built around the WEMOS D1 MINI, WS2812D-F5 and ZVNL110A. Its parts include 8 diodes, 3 resistors, 1 IC, 1 transistor and 1 switch. It belongs with the ESP8266 boards of this library.
Main components
3
WEMOS D1 MINI
A mini wifi board with 4MB flash based on ESP-8266EX, hardware version 4.0.0.LolinUncategorised
WS2812D-F5
插件,D=5mm-25℃~+85℃ 120us 2500mcd 2kHz 3.7V~5.3V 3000mcd 300ns 4000mcd 465nm~470nm 467.5nm 5.8mm cylindrical lamp holder 520nm~525nm 522.5nm 620nm~625nm 622.5nm 800Kbit/s Built-in power-on reset circuit、Built-in power-on reset circuit、Built-in one-way transmission function Plugin,D=5mm RGB LEDs(Built-in IC) ROHSWorldsemiRGB LEDs(Built-In IC)
ZVNL110A
TO-92-3-55℃~+150℃ 1 N-channel 1.5V 100V 320mA 3Ω@10V 700mW 75pF 8pF TO-92-3 MOSFETs ROHSDiodes IncorporatedMOSFETs
README
README.md39c3PCBLEDC100R
The 39c3PCBLEDC100 is a Coaster for your drinks with option for LED and microcontroller upgrade. By stacking the coasters, you can also build nice blinky towers.
Rev.0
Electrical connections
Important: Do not power the board by USB and an external power supply at the same time! The Din pin of the first LED is connected to pin D4 (GPIO2) of the Wemos D1 mini. ...well, not directly: there is a MOS-FET Transistor in between to shift the signal level from 3.3V to 5V. Two of the mounting holes are connected to GND, two of the holes are connected to 5V. You can use this feature to stack multiple 39c3PCBLEDc100R Boards with brass spacers.
The button is connected to D3 (GPIO0) and GND. In WLED (Time & Macros -> Button actions) you can configure actions for short, long and double click.
License
39c3PCBLEDC100R © 2025 by c3RE is licensed under CC BY 4.0. To view a copy of this license,
visit http://creativecommons.org/licenses/by/4.0/
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | WS2812D-F5 | WS2812_THT:WS2812_THT | D1, D2, D3, D4, D5, D6, D7, D8 |
| 2 | +5V | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | +5V, +5V |
| 2 | 10k | R_combi:1206_combi_handsolder | R2, R3 |
| 2 | GND | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | GND, GND |
| 1 | +5V | TestPoint:TestPoint_THTPad_2.5x2.5mm_Drill1.2mm | +5V |
| 1 | 100 | R_combi:1206_combi_handsolder | R1 |
| 1 | Din | TestPoint:TestPoint_THTPad_D2.5mm_Drill1.2mm | Din |
| 1 | Dout | TestPoint:TestPoint_THTPad_D2.5mm_Drill1.2mm | Dout |
| 1 | GND | TestPoint:TestPoint_THTPad_2.5x2.5mm_Drill1.2mm | GND |
| 1 | SW_SPST | Button_Switch_THT:SW_TH_Tactile_Omron_B3F-102x | SW1 |
| 1 | WeMos_D1_mini | Module:WEMOS_D1_mini_light | U1 |
| 1 | ZVNL110A | Package_TO_SOT_THT:TO-92_Inline | Q1 |
| 1 | ~ | Proto:Protoarea | A1 |
The 23 most common of 28 parts.
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Questions
What parts does the 39c3PCBLEDC100R Rev.0 use?
28 parts, built around the WEMOS D1 MINI, WS2812D-F5 and ZVNL110A. 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 39c3PCBLEDC100R Rev.0 KiCad files?
From the c3re/39c3PCBLEDC100R repository on GitHub, at the commit this page was made from: the board is Rev.0/CAD/39c3PCBLEDC100R_Rev.0.kicad_pcb and its schematic Rev.0/CAD/39c3PCBLEDC100R_Rev.0.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the 39c3PCBLEDC100R Rev.0 design in my own project?
Its repository publishes it under the CC-BY-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).