2 layers327.9 × 139 mm
Coco2
baldengineer/bit-preserve
Project for capturing vintage, classic, aka old computer schematics in KiCad.
147 parts446
2 layers98.5 × 91.5 mm
Blinker
DEV-ajthedj/blinkerA board that performs a simple blinking sequence of 10 LEDs based on an analog input of your own choosing.
- Size
- 98.5 × 91.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 18
- Pads
- 58
- Tracks, vias
- 173, 28
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 15 Apr 2026
- Updated
- 16 Apr 2026
Overview
Blinker is an open-source printed circuit board by DEV-ajthedj, from the DEV-ajthedj/blinker repository on GitHub. It is a 2-layer board of 98.5 × 91.5 mm with 20 parts on 18 nets, routed with 173 tracks and 28 vias.
It is built around the NE555P. Its parts include 10 diodes, 2 capacitors, 2 resistors, 2 ICs and 2 connectors.
Main components
1README
README.mdBlinker
A board that performs a simple blinking sequence of 10 LEDs based on an analog input of your own choosing. This board is dedicated to my mom, as I wanted to give her something cool for her birthday.
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | ~ | LED_THT:LED_D3.0mm | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10 |
| 1 | 0.01 uF | Capacitor_THT:C_Disc_D7.5mm_W2.5mm_P5.00mm | C2 |
| 1 | 1 uF | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C1 |
| 1 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | 4017 | ul_CD4017BE:N16 | U2 |
| 1 | 470 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2 |
| 1 | 50k | Potentiometer_THT:Potentiometer_Vishay_T93YA_Vertical | RV1 |
| 1 | Conn_01x01_Socket | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J2 |
| 1 | Conn_01x02_Socket | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | LOGO | custom_blinker_art:rose | G*** |
| 1 | NE555P | Package_DIP:DIP-8_W7.62mm | U1 |
Questions
How big is the Blinker PCB?
It measures 98.5 × 91.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Blinker use?
20 parts, built around the NE555P. 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 Blinker KiCad files?
From the DEV-ajthedj/blinker repository on GitHub, at the commit this page was made from: the board is blinker.kicad_pcb and its schematic blinker.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Blinker design in my own project?
Its repository states no licence, so its author keeps all rights: ask DEV-ajthedj before reusing the design.
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