Mini traffic light
lucasmazzetto·mini_traffic_light_pcb
About the Mini traffic light PCB
Mini traffic light is an open source PCB design by lucasmazzetto, published on GitHub. It is a 2-layer board measuring 25.5 × 30 mm, with 7 components from 3 distinct parts.
By type, the board carries 3 diodes, 3 resistors and 1 connector.
From the project
Design files for a mini traffic light PCB using KiCad.
This repository contains the design files for a mini traffic light PCB created using KiCad. The PCB features three vertically arranged LEDs that simulate a standard traffic light. The design also includes the necessary resistors and a connector for easy integration into other projects.
- Each LED (D1, D2, D3) is connected in series with a resistor (R1, R2, R3). - The anode of each LED is connected to the positive voltage rail through the corresponding resistor. - The cathode of each LED is connected to the ground. - The 4-pin connector at the bottom provides external connections, with each…

Mini traffic light bill of materials (BOM)
7 components, 3 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Conn_01x04 | PinHeader_1x04_P2.54mm_Vertical | J1 |
| 3 | LED | LED_D3.0mm | D1, D2, D3 |
| 3 | R | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R1, R2, R3 |
Mini traffic light design files
The KiCad project lives in the lucasmazzetto/mini_traffic_light_pcb repository on GitHub; these links point at the commit this page was built from.
- Layouttrafic_light.kicad_pcb
- Schematictrafic_light.kicad_sch
Mini traffic light: common questions
How big is the Mini traffic light PCB?
The Mini traffic light measures 25.5 × 30 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Mini traffic light?
7 components, from 3 distinct parts. The full bill of materials is listed on this page.
Where can I download the Mini traffic light design files?
From the lucasmazzetto/mini_traffic_light_pcb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Mini traffic light design in my own project?
The repository has no license, so all rights stay with lucasmazzetto. Use it as a reference, and ask the author before reusing the design.