2025-02-13 Electrical Meeting

Agenda

1 Agenda
2 Attendance
3 General Updates
4 Flight Tests
5 Reminders
6 Pegasus/Competition Updates
7 Eclipse Updates
8 Project Updates
9 Open Tasks
10 Action Items

Attendance

In person	Online

In person

Online

@Andrew Chai

@Khalil Ramzi

@Sam Zhang

@Santosh Erathasari

@Meghan Dang

@Megan Lee

@Tim Gu

Himansh Garg

@Arsalan Nasrifar

General Updates

NO MEETINGS OVER READING WEEK
Do we want meetings over exam week?
- Let not do it
Do we want work sessions over reading/exam week?
BEWARE OF SCAMS ⚠️⚠️⚠️⚠️⚠️
- WARG leadership will NEVER ask you for money or gift cards
- Report potential scams by pinging directors inhttps://discord.com/channels/776618956638388305/1338629108434735175
Lead Nomination form !
- Last onsite lead term for @Ryan Scomazzon
- https://forms.office.com/Pages/ResponsePage.aspx?id=h1o6cprzIkqSRz_CQMATlnJ_8qERK-dMn1dJnIofYSJUQkJYNERBRVVWOEUwNDJRU05UVDVRRUdIQi4u
- We are looking for a new lead and will start discussing it after midterms, please fill out this form by Friday, March 7th @ 11:59pm EST to nominate a peer that you think would be a good fit! nominating yourself is heavily encouraged if you’re interested in becoming a lead!
- Even if you don't think you are ready now, its good to know interest for the future!
- Please read through these docs for more information
  - Lead Promotion Process
  - Subteam Lead Promotion Criteria
- We will talk with every person who self nominates + anyone else who we see fit from nominations
Weef wishlist
- What do we need?
- Engsoc was due this monday, submitted and asked for solder and flux (engsoc only allows consumables)
- WEEF is due early march; so far we have:
  - storage shelf/boxes
    - will ask Graeme about removing whiteboard behind ee tables
  - PCBA funds
  - hardware tools
    - more wire strippers
    - more solder wick
  - please add more if you think of anything!
WARG Jackets colour has been changed to dark gray because they were out of black in selected sizes…
- anyone have major issues with this?
Work sessions
- Tuesdays @ 6pm
  - Rework 6s servo
    - Switch resistor divider
  - Assemble LED board spares
  - Validate SSD
  - LED rev 4
- Saturdays @ 3pm
- Gonna have to start splitting harnessing and PCB bring up
- More people would be hype as we start doing more
- Adding an additional work session in the week for harnessing?
  - Leadership can split who runs them if it is too much for one person?
  - @Kenny Na maybe can do a lettucemeet
Early term board order
- @Kenny Na
- Sarah has been away from office
- Meghan sent out an email, no updates from her?
Pick&Place machine
- Still not in the bay
- I sent a follow-up too
We got a funding account for batteries soon
- Anyone have ideas for how to spend it?
- @Sam Zhang ?
- Discuss here https://discord.com/channels/776618956638388305/1339048423856541726
EE Social Planning?
- Game night sounds pretty epic
- Snowball fight?

Flight Tests

Last flight test
- February 8th
- https://discord.com/channels/776618956638388305/1336370633952723056
- 2025-2-8 Autonomy Flight test (CANCELLED)
- Plan: Cluster estimation
- Comp roster people should be at these now
- cancelled due to insufficient ground testing, moved to next flight test
Next flight test
- Feb 15th
- https://discord.com/channels/776618956638388305/1338367711578951680
- 2025-2-15 Autonomy & EFS Flight Test
- Plan:
  - test autonomy system
  - detect target for IR beacons
  - run autotune for tuning airframe
  - Solid chance it gets cancelled due to snow

Reminders

Use LCSC components on new boards (Ideally from the JLC library)
TURN OFF DMMs WHEN DONE please!
Don’t forget to fill out the team roster: Microsoft Forms
Make sure to clean up after yourself
Get the electronsite role if on site - reach out to @Ryan Scomazzon if you have issues
Competition syncs Mondays at 9pm
Eclipse sync Tuesdays at 8pm
Tracking antenna meetings
- Sunday 2pm
Reach out if you need help on a project or bootcamp
Recruit your friends!
- More fun with friends
- If you like the team, then we can do even more with more people!

Pegasus/Competition Updates

EFS tested LED boards. All but one work. We need to fix that and making spares would be nice.
- Reflowing did not fix. Worth replacing the STM
- The transceiver seems to work. RX looks good on the scope, TX doesn't.
  - Talk to @Derek Tang or @Ryan Scomazzon for details

Eclipse Updates

Found an SSD (it works)
We need another, we have some that aren't validated.
Spares are nice too
6S servo updates
@Tim Gu hopefully on track to getting harnessing done by Feb 15th
- Still on track
- Needs to figure out wire gauges
- Doesn't know how much current ssd and 6s servo uses
  - 6S servo 4A max
  - 1A SSD

Eclipse Power & Can Splitter Harness

Going for a top-down approach for a harness schematic, high-level block diagram is done

TinyCad drawing is in progress @Tim Gu

Project Updates

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

PDB @Andrew Chai @Kenny Na @Megan Lee @Santosh Erathasari

Power Distribution Board (PDB) - Unarchived
not much progress from last week
mostly finished block diagram
Some reshuffling of tasks and architecture
meeting this week, will sound out lettuce meet after meeting
got an approx power budget
Could be quite expensive…

BMS @Andrew Chai @Sam Zhang @Chenxuan Yuan @Arsalan Nasrifar

Will schedule meeting imminently

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

in order

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

Done, waiting for board order

ELRS Redundant Diversity RX - Electrical - WARG (atlassian.net)@Nolan Haines

On board order

12S Pre-Charge Controller Module@Robert Tang @Kevin Li

what is this needed for? do we want to spend funds assembling this? ping kevin for architectural info
Would be nice do validate this before we make the PDB so we can use it there
No rush for now
Higher priority things to work on

3S ESC @Kenny Na @Santosh Erathasari @Megan Lee @Magnus Scott