

Prox dev board
- Size
- 10 × 8.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 3
- Nets
- 9
- Pads
- 24
- Tracks, vias
- 33, 8
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 18 Aug 2026
- Updated
- 18 Aug 2026
Overview
Prox dev board is an open-source printed circuit board by TheColonelYoung, from the TheColonelYoung/TBS---Flash-micro---Prox_dev repository on GitHub. It is a 2-layer board of 10 × 8.5 mm with 3 parts on 9 nets, routed with 33 tracks and 8 vias.
It is built around the LTR-303ALS-01. Its parts include 2 ICs and 1 connector. It belongs with the microcontroller boards boards of this library.
Main components
1Parts
3| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | Conn_01x05_MountingPin | Connector_Molex:Molex_PicoBlade_53261-0571_1x05-1MP_P1.25mm_Horizontal | J101 |
| 1 | LTR-303ALS-01 | OptoDevice:Lite-On_LTR-303ALS-01 | U501 |
| 1 | VL53L4CD | Sensor_Distance:ST_VL53L1x | U39 |
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Questions
How big is the Prox dev board PCB?
It measures 10 × 8.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Prox dev board use?
3 parts, built around the LTR-303ALS-01. 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 Prox dev board KiCad files?
From the TheColonelYoung/TBS---Flash-micro---Prox_dev repository on GitHub, at the commit this page was made from: the board is prox_dev_board.kicad_pcb and its schematic prox_dev_board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Prox dev board design in my own project?
Its repository states no licence, so its author keeps all rights: ask TheColonelYoung before reusing the design.