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In person | Online |
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@Arnav Dalmia | @Aathithan Karunaran @Joel Crasto @Khalil Ramzi @Himansh Garg |
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
Prob worth trying for RPi Interface Rev. C
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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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