@Ari Wasch

BMS

⛔

David Choi

DD Current Sense / Comms

✅🚹

Any update on the DD Current Sense part selection? Any update on Comms?

• Set up comms for software--untested

• Making RS422 wires for firmware

• Ordered new boards for RS422

• Making wires

• Focusing on firmware until SAR

@Farris Matar

PDB/OTS BMS

✅🚹

• Ordered charger – recieved

  • got everything to wire itup

  • making cables

  • main power cables done

• Setup battery to charger connections

• getting charge/bms to work

@Logan Hartford

Lead

✅

• Finished setting up Altium team licenses

• Signed up for Altiums training curriculum

• Made guide for getting power rails up

• Discussed new onboarding stream with peter:

  • 1. training

  • 2. testing and integration workshop

  • 3. getting started with altium

  • 4. cookie cutter, full term board design project

    • Make project collaborative

      • altium 365

    • compare work at regular deadlines, review each other, then reviewed by senior

    • Work session should be grunt work--is the collaborative period

  • 5. Resume and application workshops

    • Farris’s cohort has an interview question bank

  • 6. novel PCB design projects

  • 7. keeping people engaged with the team

• Review the new DD current sense schematic if avaialble

• 5V layout review

• Create a presentation for testing and integration workshop

• brainstorm some good cookie cutter board projects

  • code with me style or just list tasks and provide necessary instructions

  • One small part is code w me then move to something more advanced and apply the principle

  • Reading datasheets

  • Calculations

  • Mention the fundamental of the electrical concepts-why math works

  • keep within the scope of board design

  • Have a repository of concept explanations

• Reading week next week

• Make a better wiring diagram with Draw.io

• Ideas:

  • communication protocol--use osciliscope

  • I2C multiplexer

  • roulette board-555 timer--LED roulette board

  • DD current sense board but simpler

  • simple sensor board

• Set up meeting with Rishith

• Report

• drivetrain by sunday

• electrical support needed

Muhammad Tanveer

Comms

✅🚹

Any update on Comms?

Rayaan

5V OTS Buck

✅

Any update on the power replacements?

• Met with Billy about the DD current sense board

• Set up a meeting for the weekend

•  

• Set a meeting meeting for reimbursment

• Meet with billy

@Rishith Bomman

PDB

✅🚹

Any updates on PDB Rev 4.1?

• Went through comments in layout revie

• add new load monitoring sw’s

@Wolfgang Windholtz (Deactivated)

Science / Support

✅

@Yuchen Lin

DD Current Sense / Comms

✅

Any update on the DD Current Sense part selection? Any update on Comms?

• Had a meeting with Rayaan

• This Saturday will be designing the board together

• Would like to participate in the onboarding board

• What is the bare minimum electrical system?

• What are all the all the ways we can achieve this?

• New requirements--Need to power:

  • Jetson - 17V, 10W-30W

  • Gimbal

    • Search up nominal voltage and current draw for gimbal motor

    • Zed2: 380mA @5V

  • Vector Nav - 5V, 250 mA

  • Anenna - 24V 1.5A

  • Pi - 5V 3A

  • What are the power requirements for each of these?

• Encoders need 5V, mostly a current ref

  • 20mA per encoder

  • 48-5V buck

• 48V to each motor

• Apparently the Odrive supplies 5V to the encoders so no need for a buck

Total SAR Power Requirments

Rayaan

• How can this be done?

• How easy of a project is this?

• 3/5 tough

• Use resistors divider board to validate basic functions

  • For checking over-voltage?

  • Hook up the cells to the BMS and test basic functions

• Someone has definitely done battery emulation before

  • google it

@Farris Matar (starting next week)

• With vs without the BMS

• What is the safest way?

• What is the most convenient way?

• Any concerns?

• Should always charge it using a battery charger

• Have the BMS hooked up as well

• Connector solution

• Put safety warnings, storage instructions etc

@Yuchen Lin

• Do we have time for a work session this weekend?

• Yes

Rishith

• What exactly does this consist of?

• What needs to be done to verify?

• Send a digital signal to the neopixels, bitshifts

• Just need to hit it with PWM to set the colour of the whole thing

  • arduino town

@David Choi / Rishith

/ @Farris Matar

• working on instability issue

  • Should be fine with one antena

@David Choi

II

Waiting on mechanical/firmware

II

Waiting on mechanical/firmware

III

Working on priority I comms first

II

Working on priority I comms first

PDB

@Rishith Bomman /

@Farris Matar / Rayaan

PDB Rev4 - Design and Assemble the PDB

Dec 19, 2022

• Performance testing complete

• Some small schematic and footprint issues across the board

• 17V performed well except on start up

• 5V is very noisey

HIGH

BMS

@Joshua Harper / @Ari Wasch / Olivia

BMS - Design and Assemble the BMS

Apr 19, 2023

• One BMS has been assembled

• Basic non-performacne and non-firmware tests have been done

• An off the shelf replacement is being sourced

HIGH

Comms

@Yuchen Lin / @Logan Hartford

Comms

Oct 31, 2022

HIGH

Science

Apr 19, 2023

• Need one or two people to own the assembly and testing of the science boards and work with @Ivan Lim and @Wolfgang Windholtz (Deactivated) to ensure the board is ready for competition.

• Found two assembled boards but none of the parts if @Ivan Lim / @Wolfgang Windholtz (Deactivated) have any ideas please let me know. Otherwise we’ll just order more parts.

• @Ivan Lim / @Wolfgang Windholtz (Deactivated) Both of the assembled boards are missing a lot of parts, do the boards have a bunch of population options?

MEDIUM

SPI LVDS

@Farris Matar

Apr 19, 2023

• SPI LVDS Host boards should have been assembled

• SPI LVDS Peripheral parts and boards should be in the bay now, pending assembly

• Harnesses need to be ordered in order to wire them up together and do testing

MEDIUM

RS422

David Choi / @Farris Matar

Apr 19, 2023

• @Farris Matar verified the design and was able to send data using the boards

• 3 Boards have been assembled and tested

MEDIUM

LED Matrix

Apr 19, 2023

• LED matrix has been located

• Should work, just needs power and a PWM signal

MEDIUM

Digital Display Current Sense Board

@Olivia Markham (Deactivated) / David Choi / @Yuchen Lin

Apr 19, 2023

• Currently in the schematic design phase of the project

LOW