4 layers76.7 × 44.5 mm

Boards in 2 GitHub repositories, designed in KiCad, that use the BAT854SW by Nexperia (1 Pair Series Connection 200mA 40V 500nA@25V 550mV@100mA SC-70 Schottky Diodes ROHS). See how each wires it, with its parts, size, README and files; the BAT854SW’s symbol, footprint and pinout are on its own page.


diorcety/SS3
DIY Weller WMRP / WMRT / WXUP soldering station — transformer-based, MSPM0G1507 MCU, 4× dual N-MOSFET triac stage, 7-seg or 1.9" TFT display. Inspired by kair.us/projects/weller.