Ring illuminator
plertvilai·IPAX·PCBs/Optics_holder/ring_illuminator.kicad_pcb
About the Ring illuminator PCB
Ring illuminator is an open source PCB design by plertvilai, published on GitHub under the MIT license. It is a 2-layer board measuring 73.5 × 73.5 mm, with 23 components from 6 distinct parts.
Other key parts include the MCP9808. By type, the board carries 17 connectors, 2 capacitors, 1 IC and 1 resistor.
From the project
In situ Plankton Assemblage eXplorer
This Github repository contains all information necessary to build the In Situ Plankton Assemblage eXplorer (IPAX). Here is a brief introduction to how to utilize the repository.
A detail building guide is given in the Building Guide subfolder. Note that this guide is written in HTML format. To read it, simply download the entire folder and use a browser to open the file index.html.

Main components on the Ring illuminator
Ring illuminator bill of materials (BOM)
23 components, 6 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MCP9808 | MSOP-8_3x3mm_P0.65mm | U1 |
| 12 | Conn_01x01_Female | SCREW_4 | J1, J2, J3, J4, J5, J6, J7, J8 +4 |
| 5 | Conn_01x01_Male | small_smd_pad | J9, J10, J11, J12, J13 |
| 2 | Heatsink_Pad | HeatSink_10x10mm | HS1, HS2 |
| 2 | C | C_0603_1608Metric | C1, C2 |
| 1 | 10k | R_0603_1608Metric | R1 |
Ring illuminator design files
The KiCad project lives in the plertvilai/IPAX repository on GitHub; these links point at the commit this page was built from.
Ring illuminator: common questions
How big is the Ring illuminator PCB?
The Ring illuminator measures 73.5 × 73.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Ring illuminator?
23 components, from 6 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Ring illuminator design files?
From the plertvilai/IPAX repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Ring illuminator design in my own project?
Yes, under the terms of its MIT license, which plertvilai chose for the repository.