

First
Example Codes experimented
- Size
- 58.4 × 45.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 2
- Nets
- 18
- Pads
- 24
- Tracks, vias
- 20, 0
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 26 Jul 2022
- Updated
- 7 Nov 2026
Overview
First is an open-source printed circuit board by dgkim-lab, from the dgkim-lab/example repository on GitHub. It is a 2-layer board of 58.4 × 45.7 mm with 2 parts on 18 nets, routed with 20 tracks and 0 vias.
It is built around the WEMOS D1 MINI. It belongs with the ESP8266 boards of this library.
Main components
1README
README.mdexample
Parts
2| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | PN532_Board | Library:PN532_Board | U1 |
| 1 | WeMos_D1_mini | Module:WEMOS_D1_mini_light | U2 |
Questions
How big is the First PCB?
It measures 58.4 × 45.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the First use?
2 parts, built around the WEMOS D1 MINI. 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 First KiCad files?
From the dgkim-lab/example repository on GitHub, at the commit this page was made from: the board is kicad/first/first.kicad_pcb and its schematic kicad/esp8266-rc522/esp8266-rc522.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the First design in my own project?
Its repository states no licence, so its author keeps all rights: ask dgkim-lab before reusing the design.
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