4 layers180.3 × 114.9 mm
2 layers80 × 52 mm
555 timer blinker
HSarath/PCB- Size
- 80 × 52 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 9
- Nets
- 7
- Pads
- 24
- Tracks, vias
- 46, 4
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 30 Jul 2026
- Updated
- 30 Jul 2026
Overview
555 timer blinker is an open-source printed circuit board by HSarath, from the HSarath/PCB repository on GitHub. It is a 2-layer board of 80 × 52 mm with 9 parts on 7 nets, routed with 46 tracks and 4 vias.
It is built around the NE555. Its parts include 3 capacitors, 3 resistors, 1 IC, 1 diode and 1 connector.
Main components
1Parts
9| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2 |
| 1 | 100nF | C_Disc_D3.0mm_W2.0mm_P2.50mm | C3 |
| 1 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 10nF | C_Disc_D3.0mm_W2.0mm_P2.50mm | C2 |
| 1 | 10uF | CP_Radial_D5.0mm_P2.50mm | C1 |
| 1 | 330 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3 |
| 1 | LED | LED_D3.0mm | LED1 |
| 1 | NE555 | DIP-8_W7.62mm | U1 |
| 1 | PWR_IN | PinHeader_1x02_P2.54mm_Vertical | J1 |
Questions
How big is the 555 timer blinker PCB?
It measures 80 × 52 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 555 timer blinker use?
9 parts, built around the NE555. 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 555 timer blinker KiCad files?
From the HSarath/PCB repository on GitHub, at the commit this page was made from: the board is 555_timer_blinker.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the 555 timer blinker design in my own project?
Its repository states no licence, so its author keeps all rights: ask HSarath before reusing the design.
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