4 layers350 × 155 mm

Ventilator
RespiraWorks/Ventilator
Fully-featured ICU ventilator design, optimized for manufacture using commonly available components and free to license.
788 parts169Apache-2.0
Boards in 1 GitHub repository, designed in KiCad, that use the L6470PD by STMicroelectronics (-40℃~+150℃ 128 2 370mΩ 3A 8V~45V Bipolar Driver SPI Yes BSSOP-36-EP-11mm Stepper Motor Driver ROHS). See how each wires it, with its parts, size, README and files; the L6470PD’s symbol, footprint and pinout are on its own page.

RespiraWorks/Ventilator
Fully-featured ICU ventilator design, optimized for manufacture using commonly available components and free to license.