2 layers83.5 × 97.5 mm

TeleprinterHat
MattisLind/teleprinterHat
A RaspberryPi HAT that interfaces a old school teleprinter
145 parts6
Boards in 2 GitHub repositories, designed in KiCad, that use the FMMT625TA by Diodes Incorporated (-55℃~+150℃ 1 NPN 100nA 110mV 135MHz 150V 1A 30 5V 625mW NPN SOT-23 Bipolar (BJT) ROHS). See how each wires it, with its parts, size, README and files; the FMMT625TA’s symbol, footprint and pinout are on its own page.

MattisLind/teleprinterHat
A RaspberryPi HAT that interfaces a old school teleprinter

risingtideresearch/CAN-Power-Control
CAN device for switching high-current DC loads and reading sensors and switch closures