2024-03-07 EE Meeting
- Neel Patel
- R D
- Mena Azab
Meeting times:
EE Meeting: Thursdays 8 PM EST E5 1006
Leads Meeting: Tuesday 6 PM EST E5 2004
Team Competition Aircraft Sync (AEAC): Monday 7 PM EST E7 4043
Attendance:
In person | Online |
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Quick Links:
Updates this week!
Announcements/General updates
Team Roster: https://forms.office.com/r/ka0MJHJQ9D . If you are an active member, fill this out (ty)
Competition Participation Interest form: If you're interested in going to competition, please fill out the form below! Note: this does not guarantee a spot at competition.
Director Nominations: If you think you or someone else would make a good exec Director, please fill out the following form: https://forms.office.com/r/FY51bnHZsj
Active PCB Projects
High Current Power Module (Taim)
@Taim Al-Dabbagh
Battery Elimination Circuit
@Ishman Mann
narrowed down to buck converters or buck controllers
Should take 1 or 2 weeks
would be nice to have guidance on LTSpice
12S ESC (Mena)
@Mena Azab
Still wrapping head around what was previously accomplished by Ethan and Chris.
Have more time now to put towards this
6S ESC (Rayyan, Mostafa)
@Rayyan Mahmood @Mostafa Hussein
Updated inductor component in the buck schematic, need to re-pick the resistors and caps to be 0603 instead of 0805
LED Controller (Neel, Parker)
@Neel Patel @Parker Lawrence-Valeriani
Incorrect pinout on board has been identified
Newer revision (1.1) will correct this issue and others (header, and various minor issues)
Parker will start the revision this weekend
PDB (Tom)
@Tom Chiu
Half-way through switching controller (external FETs) selection to compare with switching regulator (internal FETs).
Have a general sense of the pros and cons of each, just need to have a discussion on which is most important for the drone.
Tracking Antenna (Nolan, Hardy, Michael)
@Nolan Haines @Hardy Yu @Michael Botros
Final Stages need to Schedule Review
ZP3 Rework (Anthony, Ryan)
@Anthony Zhelnakov @Ryan Scomazzon
Just Routing Altium not being fun
Capacitor Analysis for Drone (Anthony)
@Anthony Zhelnakov
Done the analytic part
Measure current values and compare to analyctic and make conclusions
CAN Interface Board (Hardy)
@Hardy Yu
Has been scoped requirments
Want something working like a can hub
Waiting for review on architecture document
Drone Harness (Neel)
@Neel Patel
Need to shorten power harness on Pegasus
@Anthony Zhelnakov Has made harness, need to adjust size to preference
Houston wiring needs to be cleaned up
Make VTX harnessing better ie. less janky
Make Harnessing Diagrams
Altium
Redundent Diversity Gemini ELRS , RF project
@Nolan Haines
Still working on it
Flight Test
Flight test on Sunday determined by weather, Time 2:00pm
New Projects
Project | Link | Description | Needs Assessment |
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Houston harness schematic | Draw houston schematic from scratch. We want a schematic for all possible power + sensor harnesses so that we can quickly build/grab harness for flight test | Wiring is too messy as of Feb 13, 2024. Also sensor harness is gonna be different for different flight tests
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Pegasus harness schematic | https://warg.365.altium.com/designs/EE4130C4-749C-446F-8B89-B208A6919071 | reorganize into hierarchical structure (see 12S servo module example) Label length, color, wire gauge | the schematic as of now is a bit hard to read |
12S ESC | Mena needs help ;d | see confluence page | |
CAN Interface | see confluence page | see confluence page | |
ICM 42688 breakout | Could get fancy using CAN bus w/it later but for now just breaking out SPI, and maybe having an onboard voltage regulator or smth (better perf). | EFS is looking to move from bmx160's to ICM 42688's . These are used commonly on all sorts of drones and fc's (probaly the most popular drone IMU being sold new right now). They're about 2$ for a chip, can be pick/placed by JLCPCB, but the eval kits are 58$. | |
Smoke stopper | Analog design. Switch between different efuses (e.g. 1A, 2A, 3A) | The board limits current flowing through when we run the motor test. It protects downstream electronic devices. It also prevents drawing too much current from the batteries.
leads need to decide whether we want a MCU on the PCB | |
5V-24V Boost | See confluence page for details we want output to be adjustable, so boost chip has to handle voltages 12V, 18V, 24V. It is even better if it can also handle other voltages in between 5V and 24V should also bypass 5V | See confluence page |