comms rev B

An RP2350A beside an ST60A3H1, ST's 60 GHz contactless transceiver with its antenna in the package, on a 28 x 63 mm six-layer board, with a connector for an OV2640 camera module on the back. Two of these face each other a few centimetres apart and tunnel UART, GPIO, I2C or USB 2.0 between them.

Source

hardware/comms/comms.kicad_pcb
hardware/comms/comms.kicad_sch

Board

28 × 63 mm6 copper layers, 1.6 mm thick

Parts

100 footprints85 on the front, 15 on the back

Copper

83 nets, 1,071 track segments, 316 vias1,850 mm of routed track

Schematic

5 sheetsA4, A3, A3, A3, A3

3D

89 of 100 parts drawn from a model3 through an older KiCad’s library variable (${KICAD6_3DMODEL_DIR} and so on), read as KiCad 9’s libraryJ1, L1 with a stand-in from the project file9 name no model (FID1–FID3, H1–H4, U4, U5)

Drawn as boxes

U9, U10${KICAD9_3DMODEL_DIR}/Package_DFN_QFN.3dshapes/Texas_UQFN-10_1.5x2mm_P0.5mm.step: no such filea box the size of the courtyard stands in for each; a [models] entry in the project file can name a stand-in model

Built 2026-10-02 05:00 by pcbview from the KiCad files above: python3 -m pcbview build pcbview.toml. Nothing here is drawn by hand — the layer plots, the model and the sheets are KiCad’s own exports.