2 layers85 × 61 mm
2 layers24 × 48.8 mm
- Size
- 24 × 48.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 11
- Nets
- 15
- Pads
- 38
- Tracks, vias
- 122, 7
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 5 May 2024
- Updated
- 10 Sep 2024
Overview
3 LED is an open-source printed circuit board by ACLAB-HCMUT, from the ACLAB-HCMUT/3LED-Demultiplexer repository on GitHub. It is a 2-layer board of 24 × 48.8 mm with 11 parts on 15 nets, routed with 122 tracks and 7 vias.
It is built around the 74HC138D. Its parts include 3 resistors, 3 diodes, 1 capacitor, 1 IC and 1 connector.
Main components
1README
README.md3LED-Demultiplexer
Parts
11| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | LED | LED_THT:LED_D10.0mm | D1, D2, D3 |
| 2 | 100 | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 1 | 100nf | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 160 | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 74HC138D | Package_SO:SOP-16_3.9x9.9mm_P1.27mm | U2 |
| 1 | Conn_01x04_Socket | Library_Custom:SEEEDSTUDIO_114020164 | J1 |
| 1 | LOGO | DeltaKiteEngineering:BKU_Medium | G*** |
The 10 most common of 11 parts.
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Questions
How big is the 3 LED PCB?
It measures 24 × 48.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 3 LED use?
11 parts, built around the 74HC138D. 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 3 LED KiCad files?
From the ACLAB-HCMUT/3LED-Demultiplexer repository on GitHub, at the commit this page was made from: the board is 3 LED.kicad_pcb and its schematic 3 LED.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the 3 LED design in my own project?
Its repository states no licence, so its author keeps all rights: ask ACLAB-HCMUT before reusing the design.