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In person

Online

Ryan Scomazzon

Kenny Na

Megan Lee

Santosh Erathasari

Edson Gao

Jerry Tian

@Arnav Dalmia

Andrew Chai

@Aathithan Karunaran

@Joel Crasto

@Khalil Ramzi

Sam Zhang

Tim Gu

Ahmed Osman

@Himansh Garg

Meghan Dang

General Updates

  • Work sessions

    • Tuesdays @ 6pm (sorry we missed this Tuesday)

    • Saturdays @ 3pm (#2 this week! 6S Servo assembly clean-up)

  • Start of term board order

    • Waiting on Meghan Dang to complete order, hopefully monday

    • Kenny Na to order in person with Sarah on Monday!

  • Pick&Place machine

  • Looked at DMMs, one of them is just cooked even with a new battery and one of them is hard to get at the fuse. Didn't bother swapping fuses from the dead one cause you can’t see if it is intact.

  • Tracking antenna meetings

    • Sunday 2pm

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  • Jerry Tian

  • Maiden flight electrical block diagram is done. Tim Gu is getting started on the harness design. All harness sections below need a harness diagram.

    • fuselage

    • right wing

    • left wing

    • tail

  • Edson Gao interested

  • Fried ELRS boards?

    • Not installing an antenna while boards is powered up means that transmission line is terminated with an open circuit, wave is getting reflected back and the doubling voltage destroyed the transmitter chip 😞

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  • conf doc?

    • Will be made after this meeting

  • Schedule meeting with Kenny Na Megan Lee Santosh Erathasari Edson Gao to discuss project

  • Initial ideas

    • Power distribution board that supplies power to most/all electronic sub-systems of the board

    • Standard connector that provides common rails: 12V, 5V

    • Really wanna optimize efficiency, maybe play around with some cool ideas with soft switching, different converter topologies etc

    • Power conversion system will take priority during inital initial development phase, last attempt at making this got archived due to limited bandwidth and also focus on additional features like I-Sense + RPP

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  • Will schedule to meet with Sam Zhang

  • Any more interest from others not present at last meeting?

  • Looking into feasibility, integration, possible components + IC’s, active vs passive balancing

  • Concern about resources - This is more of a program than a project. Will be a lot of research

  • Work towards proposal? - Sam Zhang

RPi Interface Rev C - Electrical - WARG (atlassian.net) Kenny Na Daniel Puratich

  • On JLCPCB cart and ready to be ordered

  • Trying to order DigiKey components + parts to fix ELRS+Buck

  • Will now be ordering 1x of buck only, 1x of modem only, and 1x of modem + STM

  • 3x of the buck ICs and STM have already been ordered, so some of those will be left spare.

  • Pick & Place would be huge, this board has so many components

  • KiCad plugin to replace components with JLC versions - see if we can import Altium bom

12S ESC - Electrical - WARG (atlassian.net) Ethan Abraham& Andrew Chai

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  • Schematic still underway

    • need to figure out BEMF sensing system, STM I/O (for flash and debug)

      • OUTx pins do not have sensing (I believe), need to use OPx

      • It is advised to review the STEVAL board for reference

    • test points might be nice

Tracking Antenna Controller w ELRSAhmed OsmanNolan Haines

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  • Peggy harnessing?

  • Replacing DMM fuze/batteries?

  • Reach out to greame about pnp

Action Items