This model is based on the open source project Milano, their team also published a paper

Open source repository for the project firmware and test App (by the Milano team)

NuclearInstruments/MVMFirmware

NuclearInstruments/MVMTestApp

A fast repository of current drawings

MVM Repository

See below the updated bill of materials

BOM_REPORT_PCA VENT REV 1.xlsx

These are consideration (Notes) made by the milano team after studying the servo 900c vent manual, and after talking to an experienced intensive care nurse.

Considerations on MVM design.docx