Meeting Notes - Avionics - 2023-01-18

Date

Jan 18, 2023

Attendees

@Yevgeniy Gorbachev (RIT Alumni)
@Billy Siegener (RIT Student) (Deactivated)
@James May (RIT Student)
@Louis Fleisher (RIT Student)
@Dante Sivo (RIT Alumni)
@Jonathan Russo (RIT Alumni)
@Aaron Chan (RIT Student)
@Chloe Clark (RIT Student)
John Ye

Goals

Get updates
Get comprehensive TODOs between now and JLC delievery

Discussion items

Item	Who	Notes

Item	Who	Notes
Board updates
Software	@Aaron Chan (RIT Student) @Akhil Devarapalli (RIT Student) @Jonathan Russo (RIT Alumni) @Chloe Clark (RIT Student) @Brooke Leinberger (RIT Alumni) @Nate Aquino (RIT Student) @qcl4604 @Sebastian Martinez @Brian Tokumoto @Crispen Wendell @Torin Samples	Updates: Sensor drivers written Onboarding TODO: Onboard new people @Aaron Chan (RIT Student) Test SHTC3 - @Nate Aquino (RIT Student) @Jordan Mesches SHTC3 Sensor Module Task - Test ADXL375 - @Akhil Devarapalli (RIT Student) @Torin Samples ADXL375 Sensor Module Task Test BMP390 @Aaron Chan (RIT Student) BMP390 Sensor Module Task - @Aaron Chan (RIT Student) Test MS56701 MS56701 Sensor Module Task Test L3GD20H L3GD20H Sensor Module Task Test LIS3MDL - @qcl4604 LIS3MDL Sensor Module Task Test LSM6DSL LSM6DSL Sensor Module Task Test W25Q - @Aaron Chan (RIT Student) @Brooke Leinberger (RIT Alumni) Test TMP117 - @Sebastian Martinez @Brian Tokumoto @Crispen Wendell TMP117 Task W25Q Module Tasks Sensor Power Radio Autopilot Test W5500 W5500 Module Tasks Sensor Power Radio Autopilot Write RFM95W Drivers - @Jonathan Russo (RIT Alumni) Write MAX10 GPS Drivers - @Jonathan Russo (RIT Alumni) Finish ICMP - @Chloe Clark (RIT Student) Train people to use Ground Station - @Aaron Chan (RIT Student)
Radio Module	@Dante Sivo (RIT Alumni) @Jonathan Russo (RIT Alumni)	Updates: Added ESD to connectors Added UART jumpers to GPS and a debug bus Schematic updates "beautified" Board Ready for review To-Do: Drivers for RFM95W - @Jonathan Russo (RIT Alumni) Drivers for GPS - @Jonathan Russo (RIT Alumni) Verify impedance control. Layer Stackup Templated might be wrong - @Dante Sivo (RIT Alumni) Add JLCPCB Part #'s to parts used - @Dante Sivo (RIT Alumni) Mark mounting holes as DNPs - @Dante Sivo (RIT Alumni) Schematic Review - @Dante Sivo (RIT Alumni) /w team Layout Review - @Dante Sivo (RIT Alumni) /w team Provide Louis with a proper full quote from JLCPCB - @Dante Sivo (RIT Alumni)
Power Module		Updates: Design voltage/current sense Select passives for most ICs Schematic is 60% complete To-Do: Power Module - Backplane<--checklist
Sensor Module @Louis Fleisher (RIT Student) @Mary Dertinger (RIT Student)		Updates: Started reviewing some schematics with JIM Continuing work on schematics TODOs: Updated Block Diagram All Breakouts Ordered Schematics Created MS5607 BMP390 ADXL375 LSM6DSL LIS3MDL TMP117 SHTC3 W25Q128JVSIQ Status LEDs W5500 + Connector + LC Filter STM32 Higher Level Sensor Schematic Full Board Schematic Schematics Reviewed MS5607 BMP390 ADXL375 LSM6DSL LIS3MDL TMP117 SHTC3 W25Q128JVSIQ Status LEDs W5500 + Connector + LC Filter STM32 Higher Level Sensor Schematic Full Board Schematic Get I^2C Addresses for Sensors Board Layout Completed Board Layout Reviewed
Autopilot Module	@Ben Hyman (RIT Alumni)	Updates: Changed from Wago terminals to standard screw terminals for charge lines Reduced from 4 to 2 charge lines Did basic layout of charge lines Fixed address lines to go to inputs on Vocore Schematic is 90% complete Posted GPIO default state question to Vocore forum TODOs: Schematic Finish rest of backplane connector (GPIOs and LEDs) Clean up schematic Run ERC and make sure there are no design breaking errors Layout Placement of all components (really just one more charge line which is copying the one i've already done) Route all signal traces Route power traces/pours Run DRC and make sure there are no design breaking errors
Connector spec		Idea 1: "Horned connectors" going sideways Positively locking Board-edge would look very neat Board-edge would take up too much space - we have 130mm width, 60mm per board is not enough margin Idea 2: Back to proper backplane Vertical connectors on modules pass through slots in the sled, connect to the backplane Sandwich the plastic sled by the PCBs Screwing everything to a common sled is positively locking Less wires means less integration hassle Maintain ability to use cables Need to specify connector offset on each module Radio module needs to send SMA connectors through the sled or out the short edge Need to carefully solder connectors so they're not canted Use a fixture?

Action items

Determine crossover need: Jan 20, 2023 @Billy Siegener (RIT Student) (Deactivated)

Finish sensor board schematic: Jan 28, 2023 @Louis Fleisher (RIT Student)

Finish backplane schematic: Jan 25, 2023 @Billy Siegener (RIT Student) (Deactivated)

Finish power module schematic: Jan 25, 2023 @James May (RIT Student)

Finish Autopilot schematic Jan 25, 2023 @Ben Hyman (RIT Alumni)