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2024-11-27 Electrical Meeting

2024-11-27 Electrical Meeting

 

Attendance

In person

Online

In person

Online

@Ryan Scomazzon

@Meghan Dang

@Andrew Chai

@Kenny Na

@Ian Van Den Steen

@Shawn Yang

@Jerry Tian

@Tim Gu

 

General Updates

  • Meghan running this meeting 🔥🔥

  • LAST MEETING OF THE TERM

    • WE ACTUALLY KILLED IT THIS TERM NICE JOB EVERYONE

    • @Ryan Scomazzon To talk a bit looking back on how epic we did

  • Last flight test

  • Next Flight Test - Nov30th

  • Final Flight Test of the term - Dec 14th

    • Testing both solutions for task 2 - pump (water controller) and scoop (single servo driver

    • water controller is pending on EE - we need this assembled and validated by then!

    • PULL UP!!

  • Winter 2025 EE Co-op

    • An EE coop would be really epic but we need a mentor to have one!

    • If you wanna be a coop mentor, please reach out to EE leads. It would be really really epic and cool and awesome sauce.

    • EE co-ops have been actually popping off (nice job guys)

    • DEADLINE IS TOMORROW so please reach out now if interested!!!!!!!

      • We would still have to make the job description and get it reviewed so must let us know TN

  • PMs next term

    • We are looking for PMs for next term

    • Going to release a form after finals, please keep an eye out if interested

    • No questions on the form, just submit if interested

    • We will talk individually to everyone who fills it out to see PM role would work and go over expectations.

    • Can be on OR off site.

    • Please fill out even if already PM so we can see if you wanna be PM next term

  • Midterm board order

  • EE Work session

    • No more work sessions this term

    • Today’s

      • successful bringup of water controller!

        • 3 Boards Assembled

      • validated + powered up, should be good to test w/ mech system pre-comp sync

      • Pre-charge system working

    • Friday’s

      • potentially bringup more boards

      • check availability of members (finals)

      • if no one avail, cancel this sesh

      • likely no sunday sesh either unless people would be interested in more board bringup

        • Likely not

      •  

  • AEAC Town Hall #1 happened

  • PCBX Sponsorship @Ryan Scomazzon

    • Good news and bad news

    • Good news: Turns out they didn't ghost us, it just got sent to junk

    • Bad news: They are ops of deception and basically used this as a marketing campaign. Their offer for free services was only for the first order and everyone gets this as a new account promotion. They conveniently didn't mention this in their first email.

    • They mentioned something about offering a discount to us for long term cooperation? I sent an email to push for what we can get out of them but I think this is probably a dud

    • Back to looking for a JLC sponsorship, I can use some help with that.

  • Comp/Eclipse sync

    • No eclipse sync

    • Comp sync tmrw night (Thursday) @ 8pm in E5-2103

      • LAST COMP SYNC OF THE TERM

  • Beginning of term order

    • Who wants to be on it?

    • Reasonable timeline?

  • TOASTER OVEN ACQUIRED 🔥🔥🔥🔥🔥

    • Plz dont store things on top of it or touch the top - it gets hot

    • Dont put food in there because we will be using leaded solder in there which will make your food not something you wanna eat (unless you want cancer)

Reminders

  • Please clean up after yourself

  • 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

  • Don’t forget to fill out the team roster: Microsoft Forms

  • Missing GPS

    • RIP - Gone forever likely

    • probably gonna order

      image-20241009-040607.png

Board bring up Status

Please update test plans/board documentation!

WATER CONTROLLER

Board Name

status

blockers

plan going forward

Board Name

status

blockers

plan going forward

GPS Breakout

  • Alternative GPS selected

 

Single Servo Driver

  • electrical validation done. need firmware. 3x boards all ready to go right now

  • Maybe make spares since we are using all we made?

 

6s Power Module

  • More testing from Andrew in the coming week when diodes come in

  • Perform High Current Test

  • Power rails working

  • Still waiting for Firmware

 

 

12-5V @ 4A Buck + ELRS RX

@Kenny Na Assembling and Validating

  • 3 boards fully assembled

  • Continuity testing w/DMM

  • terrified to power the board

 

Water controller

  • Boards Assembled

  • Validated Electrically

  • Ready to be integrated

 

Peggy 2/Comp Updates

  • @Jerry Tian For Peggy 2

  • Water controller making (prob in more detail above)

    • Will install Dec 13 afternoon lol (after I finish finals)

  • Comp relevant PCBAs

    • Water controller

    • Water controller Rev 2

    • LED REV 4

    • Tracking antenna controller rev2

    • Unified VTX - descoped from this comp cycle

    • Single servo driver

    • Pi interface rev c

  • Big push now is for Dec 14 flight test

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

  • The below boards should be included

    • 6S servo module rev 2 - assembly next term

    • Single Servo Driver - waiting on EFS

    • 6S power module - in validation @Andrew Chai for details

      • High current test

      • POR for first flight of eclipse next term.

    • 24-5V buck - redundant power supply

    • @Jerry Tian Interested in harness diagrams?

      • yes all of them

    • Looking for diagrams of where things will be mounted from mech

    • CAN Integration 2025

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

    • @Kenny Na Layout Design

    • New modem, different SIM TVS, back to making routing progress

    • Modem wasnt on our bands - better for europe and asia

    • Chillin for beginning of term order

    • Reviews are appreciated now

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

    • @Ethan Abraham& @Andrew Chai

    • Pending layout review - basically done

    • Room for optimization

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

    • @Nolan Haines Individual Contributor

    • Target for beginning of term order

  • 12S Pre-Charge Controller Module

    • @Robert Tang , @Kevin Li

    •  

  • 3S ESC

    • @Kenny Na, PM @Daniel Puratich

    • Stalled for 12-5V Buck + ELRS RX bringup

    • Stalled for USB-C Sink bringup

    • Stalled for layout on RPi Interface Rev. C

    • houston ESCs? - 3s or 6s batts?

    • Wait for new motor selection?

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

    • @Ryan Scomazzon

    • Forgot to check connector at work

    • Still open for anyone who wants to help, dm me

    • Suggestion from @Kenny Na - look into ethernet? - Power rating?

      • This came up before but was ditched. Look into why? There may be a conf doc from sept 2023

  • ELRS Gemini Testing/Rev 2

    • @Ahmed Osman

    • is this still going ?

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

  • @Ian Van Den Steen

 

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

  • @Tim Gu

  • Did some research on designing/working with boost convertors

  • Getting started on calculations

    • Input current may be around 90-100A (very rough estimate)

    • How much current is too much (to the point where we can’t make this ourselves)?

  • Looking into COTS options for buying one

    • There are some 12-24V 50A DC/DC convertors that seem promising at first glance, will dig deeper and document updates

  • some ideas:

    • If we don’t charge 4 batteries at once the input current will probably be a lot lower

    • maybe use multiple boost convertors (like a multiphase buck)?

 

Water System Controller rev 2 - Electrical - WARG

  • Working on schem still

  • After this weekend will be on hold till after finals

  • Target for start of term board order

Action Items

  • Make source of truth for board priority and add more single servos to it

  • Check up on elrs status

GOOD LUCK ON EXAMS 🙏🙏🙏

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