12 layers180 × 150 mm
Marble
BerkeleyLab/Marble
Dual FMC FPGA carrier board developed for general purpose use in particle accelerator electronics instrumentation.
1,006 parts35
Boards using the PCAL9555AHF
4 boardsBoards in 3 GitHub repositories, designed in KiCad, that use the PCAL9555AHF by NXP Semiconductors (复位功能、级联与地址扩展、内置LED驱动 HWQFN-24-EP(4x4) I/O Expanders ROHS). See how each wires it, with its parts, size, README and files; the PCAL9555AHF’s symbol, footprint and pinout are on its own page.
- 2 layers166.2 × 152.4 mm
Beeper
shirriff/beepomatic
Circuit boards to beep out the backplane in the Apollo update test box
16 parts4 - 2 layers181.7 × 171.5 mm
- 2 layers182 × 171.9 mm
