2024-11-06 Electrical Meeting

Attendance

General Updates

• Last flight test

  • https://uwarg-docs.atlassian.net/wiki/spaces/FT/pages/2794061954/2024-11-02+Competition+Flight+Test?search_id=1d5f793c-6780-4ae9-ac3d-ecd7dd2019e5&additional_analytics=queryHash---e457ba8152038aa19160bb6d63a21fca391f363d1f0692026ad2196499dd01c1

  • Was extremely successful

  • We were able to test a lot of things on 3 different airframes

  • harnessing on Peggy 2 worky

  • tracking antenna ee-side worky

    • not able to test with dallas, but not an ee issue

  • big dubs

  • Auto data was kinda messed up and efs couldnt get tracking antenna working

• Team photo

  • now up on the website!

• Midterm board order

  • Now Nov 7th (Original date was Nov 4th)

  • Current boards (speak up if we are missing you)

    • Tracking antenna rev 2 - Ryan

      12->5V @ 4A buck - Kenny - Daniel

      USB-C Sink - Kenny - Daniel

      24V->5V @ 5A buck - Robert - Kevin

      6S servo module rev 2 - Ian - Meghan

      Water Controller - Shawn - Daniel

      RPi interface rev C - Daniel

      Unified Video System - Tom

      Sensor Cluster - Michael -

      quadversity ELRS - Nolan

      straight can splitter - Daniel

      programming conn adapter - Meghan

    • Led controller rev 4

• EE Wednesday Worksesh replaced with a review sesh

  • reviewed

    • Unified VTX

    • Water Controller

    • Buck w/ELRS

• Friday Worksesh

  • RPi mounting on peggy 2

• Sunday Worksesh

  • TBD

  • no more bringup tasks really

  • could do an altium sesh

• EE Knowledge Session - MOSFET Selection

  • Hosted by Farris Matar

  • November 7th @6pm (tmrw)

• EE Social

  • escape room

  • baking

  • game night

  • taim’s

  • tentatively set for nov 15th

• Comp/Eclipse sync

  • Eclipse sync tonight @ 8pm

  • Comp sync tmrw night @ 8pm

• Consider using JLC parts in the future?

  • Look at preferred parts

  • Basic & Preferred Electronic Components | JLCPCB Assembly Parts Library

  • Can use LCSC but costs more so try to avoid

  • Nolan Haines Kenny Na to fill this in

  • this convo explains more https://discord.com/channels/776618956638388305/1294169338508611646/1303409790789091439

• WEEF presentation done - went well

Reminders

• Please clean up after yourself

  • make sure that after bringup, all the boards and components are back in their boxes! don’t want to lose any

• Get the electronsite role if on site - reach out to Ryan Scomazzon if you have issues

• Check out Conops for AEAC! Get involved in comp syncs for discussion https://www.aerialevolution.ca/annual-student-competition/

• If you are on a project and can use some help, reach out

• Toaster oven not acquired yet - if you would like to help let me know

  • check facebook marketplace there’s like 40 million https://www.facebook.com/marketplace/112763262068685/search/?query=toaster%20oven

• Don’t forget to fill out the team roster: https://forms.office.com/r/ka0MJHJQ9D

• Missing GPS

  • probably gonna order

    

Board bring up Status

Please update test plans/board documentation!

Peggy 2/Comp Updates

• Jerry Tian For Peggy 2

• LED Harness works well! Thank you everyone for helping out!

• next step is to install Rpi, harness schematic design will come next Tuesday, assembly the day after

• POR is to use one of either Single Servo or Water controller

• LEDs on and lookin fire

Eclipse Updates - Fixed Wing 2025 - SysInt - WARG (atlassian.net)

• The below boards should be included

  • 6S servo module rev 2

  • Single Servo Driver

  • 6S power module

  • CAN Integration 2025

Bootcamp Updates

• Keep sending questions to your respective threads!

General Tasks

In order of priority. These are the active design projects.

• RPi Interface Rev C - Electrical - WARG (atlassian.net)

  • Daniel Puratich Project Manager, Principle Hardware Engineer

  • Siddharth Muralikrishnan Anthony Lazar Anthony Luo Shawn Yang

• 12V -> 5V @ 4A Buck Converter + ELRS Board - Electrical - WARG (atlassian.net)

  • Kenny Na Engineer

  • Daniel Puratich PM

  • All done :)

• USB-C Sink - Electrical - WARG (atlassian.net)

  • Kenny Na

  • Done :)

• 24V->5V @ 5 A Buck Converter Board - Electrical - WARG (atlassian.net)

  • Robert TangEngineer

  • Kevin Li PM

  • Done :)

• Unified Video System - Electrical - WARG (atlassian.net)

  • Tom Chiu Individual Contributor

• 12S ESC - Electrical - WARG (atlassian.net)

  • Ethan Abraham Individual Contributor

  • Knowledge transfer done with Andrew Chai

  • Placement in progress, will have done by Friday

  • 2-3 weeks from completion (estimate)

• ELRS Redundant Diversity RX - Electrical - WARG (atlassian.net)

  • Nolan Haines Individual Contributor

• Sensor Cluster - Electrical - WARG (atlassian.net)

  • Michael Botros

  • Placement finished. Stackup mostly definined. Most of signal routed. Just need to make power planes/polygons.

  • Considering impedance controlling SPI lines for >10MHz data speeds. Maybe just tune source resistor when board comes back instead of controlling line impedance → decided to just tune the resistor

  • Need to check if length matching is necessary → time difference between currently routed SPI is < 30ps, not applicable for a few 10s of MHz

• https://uwarg-docs.atlassian.net/wiki/spaces/EL/pages/2762014736/6S+Servo+Module+Rev+2?search_id=ce6b3b42-c848-496f-b919-ca6d20f18e93&additional_analytics=queryHash---51841482e71014cf72aabef4f129f657399f9d17a0f7ba284e3d3f3afaa8fe56

  • Meghan Dang Individual Contributor

  • Ian Van Den Steen for buck design and layout

• (Rev 2) Tracking Antenna Controller Improvements (M3) - Electrical - WARG

  • Ryan Scomazzon

  • Ready for review

  • Added flyback, switched current lim IC, swapped buck

  • Ian Van Den Steen please verify it has the most recent design of your buck

• Fixed wing connector research (VBat, CAN, 5V)

  • Ryan Scomazzon

  • No progress

• ELRS Gemini Testing/Rev 2

  • Ahmed Osman

• Water System Controller - Electrical - WARG

  • Daniel Puratich PM

  • Shawn Yang Engineering

  • reviewed in today’s sesh

    • notes

      • implementation looks fine

• Straight CAN splitter

  • Daniel Puratich

• Programming Connector Adapter

  • Meghan Dang

• LED Board Rev 4 - Electrical - WARG

  • Parker Lawrence-Valeriani

  • Cleanup is done

  • Adding side emitting LEDs to make the drone more visible

Potential new projects

12V Input to 65W USB-PD Source - Electrical - WARG

12V to 24V Boost Groundside Converter - Electrical - WARG

Action Items