Iris hw
bunnie·iris-hw·imager-tool/elec/iris_led_v2/iris_led_v2.kicad_pcb
About the Iris hw PCB
Iris hw is an open source PCB design by bunnie, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 26.6 × 14.9 mm, with 26 components from 15 distinct parts.
Other key parts include the BL8028 and TPS61169DCKR. By type, the board carries 8 diodes, 6 resistors, 4 capacitors, 3 transistors, 2 ICs and 2 inductors.
From the project
CAD files for IRIS hardware designs
This repository contains IRIS CAD files not found elsewhere.
In particular, the base machine is the Jubilee3D; please refer to its github for its base CAD files.
This repository is part of the IRIS project, an effort to make it easier to verify the construction of silicon chips.
Read more about IRIS at our arXiv paper, or the latest project update.
This work was funded in part by NLnet’s NGI0 Entrust fund, established with support from the European Commission’s Next Generation Internet Program, and my Github Sponsors.

Main components on the Iris hw
Iris hw bill of materials (BOM)
26 components, 15 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BL8028 | SOT-23-5 | U2 |
| 1 | TPS61169DCKR TPS61169 | SOT-353_SC-70-5 | U3 |
| 2 | AO3401A | SOT-23 | Q1, Q2 |
| 1 | 2N7002 | SOT-23 | Q3 |
| 1 | FH34SRJ-6S-0.5SH(50) | HRS_FH34SRJ-6S-0.5SH(50) | P1 |
| 7 | CB-QIR2835C02W1050-PT | LED_PLCC_2835 | D1, D2, D3, D4, D5, D6, D7 |
| 1 | B5819WS B5819WS, 40V 1A | D_SOD-323 | D8 |
| 1 | 1uH | L_1008_2520Metric | L1 |
| 1 | FTC252010S4R7MBCA 4.7uH >1.7A 2x2.5mm | L_Changjiang_FNR252010S | L3 |
| 1 | CL21A225KBQNNNE 2.2uF, 50V X5R | C_0805_2012Metric | C2 |
| 3 | CL10A106KP8NNNC 10uF, 10V, X5R | C_0603_1608Metric | C3, C4, C6 |
| 3 | ANY 10k, 1% | R_0402_1005Metric | R1, R2, R4 |
| 1 | ANY 45.3k, 1% | R_0402_1005Metric | R3 |
| 1 | RC0603FR-7W2R2L 2.2 ohm, 1% | R_0603_1608Metric | R5 |
| 1 | DNP | R_0402_1005Metric | R7 |
Iris hw design files
The KiCad project lives in the bunnie/iris-hw repository on GitHub; these links point at the commit this page was built from.
Iris hw: common questions
How big is the Iris hw PCB?
The Iris hw measures 26.6 × 14.9 mm, has 2 copper layers and is 1.5842 mm thick.
How many components are on the Iris hw?
26 components, from 15 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 Iris hw design files?
From the bunnie/iris-hw repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Iris hw design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which bunnie chose for the repository.