...

• Who

  • Daniel Puratich architecture, component selection, pm

  • Shawn Yang schem n layout

• What

  • interface between pixhawk gpio ports and 12v rail to pump, float, and release solenoid

  • extremely simple

    • Proof of Concept

  • Probably a dual channel HSD for 12V?

    • https://www.digikey.ca/en/products/detail/texas-instruments/TPS4H160AQPWPRQ1/6175214

    • I put other options in the schem

• What will not be included initially, m a y b e in a future rev

  • no buck to keep it simple, external buck for 48V to 12V required

  • no CAN circuit → firmware is struggling with https://uwarg-docs.atlassian.net/wiki/spaces/ARCHS22/pages/2555904119/CAN+Integration+2025?search_id=99d9c02e-7941-4ee2-82d0-2c122bfa0b60&additional_analytics=queryHash---7f978b8f92e6fafe064d9236a790a0a47e8e5cec2916cdb791a52078bd173393

• Where

  • https://warg.365.altium.com/designs/DD062A54-937F-4D75-99F4-18F43FADAAC4#design

  • github

• External Parts

  • pump:

  • solenoid:

  • float sensor:

  • pixhawk:

  • power supply:

Engineering