2 layers192.2 × 150.5 mm
2 layers7.6 × 34.9 mm
LedB
5shekel/ledBledB
- Size
- 7.6 × 34.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 11
- Nets
- 6
- Pads
- 22
- Tracks, vias
- 30, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 8 Jan 2015
- Updated
- 13 Oct 2025
Overview
LedB is an open-source printed circuit board by 5shekel, from the 5shekel/ledB repository on GitHub. It is a 2-layer board of 7.6 × 34.9 mm with 11 parts on 6 nets, routed with 30 tracks and 0 vias.
It is built around the LMV321. Its parts include 1 diode and 1 crystal.
Main components
1README
README.mdledB
old vs new
continued work from eran kicad production version
this version is kicad with comments from Owe, thanks to Ralf and eveyone else at home-made who looked, made and tweaked this.
Parts
11| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | , | ||
| 2 | 3M3 | Resistor_SMD:R_0805_2012Metric | 3M3, 3M3 |
| 1 | 220 | Resistor_SMD:R_0805_2012Metric | 220 |
| 1 | 2M2 | Resistor_SMD:R_0805_2012Metric | 2M2 |
| 1 | 47n | Capacitor_SMD:C_0805_2012Metric | 47n |
| 1 | LED | LED_THT:LED_D3.0mm | D1 |
| 1 | LMV321 | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | LMV321 |
| 1 | MountingHole | MountingHole:MountingHole_3.5mm | H1 |
| 1 | Piezo Crystal | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | Y1 |
Questions
How big is the LedB PCB?
It measures 7.6 × 34.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LedB use?
11 parts, built around the LMV321. 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 LedB KiCad files?
From the 5shekel/ledB repository on GitHub, at the commit this page was made from: the board is ledB/ledB.kicad_pcb and its schematic ledB/ledB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LedB design in my own project?
Its repository states no licence, so its author keeps all rights: ask 5shekel before reusing the design.
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