@Ari Wasch (Deactivated)

BMS

⛔

David Choi

DD Current Sense / Comms

✅🚹

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

• If we only need one freq we are good for SAR

• Need to do some more testing for comms

• May go to the bay this weekend

@Farris Matar (Deactivated)

PDB/OTS BMS

✅🚹

• SPI Peripheral boards assembled, preliminary short checking done, no shorts between voltage rails, GND, and signal lines

• Decision on 17V load switch is not to change out IC, no significant upgrades from upgrading it that would be worth it

• STM32 has ADCs if we want to take an analog current-sense measurement of the 17V rail

• Look over DD Current Sense schematic for @Yuchen Lin when ready

• Look into BMS testing & setup with battery

• Look into 12s charger

@Logan Hartford (Deactivated)

Lead

✅

• Review the 5V layout

• Any PDB work sessions this weekend?

• Review SOP

• Reveiw DD current sense IC schematic

Muhammad Tanveer

Comms

✅🚹

Any update on Comms?

@Olivia Markham (Deactivated)

BMS / DD Current Sense

⛔

Rayaan

5V OTS Buck

✅

• Look into 48-17V OTS buck (3-4A)

• Ask about the gimbal and vector nav power requirements

@Rishith Bomman

PDB

✅🚹

Any updates on PDB Rev 4.1?

• Get the layout review out for 5V

• Start working on 5V sw

@Wolfgang Windholtz (Deactivated)

Science / Support

✅

• SOP review

• DD current sense

@Yuchen Lin

DD Current Sense / Comms

✅

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

• SOP doc is finished, needs to be reviewed

• DD current sense schematic is finished – IC

• Looking into frequency hopping

• Formula EE: willing to have a meeting with us about the battery

• Sop review

• Dd-current sense review

• Researching frequency hopping

• More info in charger and battery

• 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, 2-4A?

  • Gimbal - ?

  • Vector Nav - ?

  • Anenna - 24V 1.5A

  • 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

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 (Deactivated) (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 (Deactivated)

• 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 (Deactivated) / Rayaan

https://uwaterloo.atlassian.net/wiki/spaces/UWRT/pages/43203231780

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 (Deactivated) / Olivia

https://uwaterloo.atlassian.net/wiki/spaces/UWRT/pages/43203231787

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 (Deactivated)

https://uwaterloo.atlassian.net/wiki/spaces/UWRT/pages/43223023696

Oct 31, 2022

HIGH

Science

https://uwaterloo.atlassian.net/wiki/spaces/UWRT/pages/43216830558

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 (Deactivated)

https://uwaterloo.atlassian.net/wiki/spaces/UWRT/pages/43216896013

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 (Deactivated)

https://uwaterloo.atlassian.net/wiki/spaces/UWRT/pages/43216896006

Apr 19, 2023

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

• 3 Boards have been assembled and tested

MEDIUM

LED Matrix

https://uwaterloo.atlassian.net/wiki/spaces/UWRT/pages/43276206088

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

https://uwaterloo.atlassian.net/wiki/spaces/UWRT/pages/43276206081

Apr 19, 2023

• Currently in the schematic design phase of the project

LOW