Ari Wasch

BMS

⛔

David Choi

DD Current Sense / Comms

✅🚹

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

Logan Hartford

Lead

✅

• Made draft of the of the new onbarding procedure/presentation

• Brainstormed some board ideas

Rayaan

5V OTS Buck

✅

Any update on getting started with the DD current sense board?

Rishith Bomman

PDB

✅🚹

Any updates on PDB Rev 4.1?

Wolfgang Windholtz (Deactivated)

Science / Support

✅

Yuchen Lin

DD Current Sense / Comms

✅

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

• Get the bare minimum electrical systems working for the drive train to be able to move

• 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

• 17V - 4A
• 5V - 380 + 250 + 3A => 4A
• 24V - 1.5A

Rayaan

• Validate the OTS BMS

• 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)

• Create a SOP document for how to charge the LiPo battery pack

• 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

• Complete Rev 4.1 of PDB

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

• Yes

Rishith

• Validate the electrical functionality of the LED matrix

• 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

• Set up 2.4 Ghz bands

• working on instability issue

  • Should be fine with one antena

David Choi

• Wire up the ARM

II

Waiting on mechanical/firmware

• Wire the drivetrain

II

Waiting on mechanical/firmware

• Set up 5 Ghz bands

III

Working on priority I comms first

• Set up 900 Mhz bands

II

Working on priority I comms first

PDB

Rishith Bomman /

Farris Matar / Rayaan

PDB Rev4 - Design and Assemble the PDB

19 Dec 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

19 Apr 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

31 Oct 2022

HIGH

Science

Science - Assemble & Test

19 Apr 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

SPI LVDS - Assemble and Test

19 Apr 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

RS422 - Assemble and Test

19 Apr 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

LED Matrix 2022/23

19 Apr 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

Current Sense Display

19 Apr 2023

• Currently in the schematic design phase of the project

LOW