[Design Review] [Backplane]: Test Hardware for Verification & Workshop

[FerretCode]

Subsystem

Backplane

Type of work

Schematic

Target start date

2026-07-15

Reviewer(s) requested

@OSUSat/osusat-reviewers

What you're about to build

A test PCB with a simple microcontroller (e.g., RP2040), LEDs, an I2C device, and a couple ADC channels. This hardware will be used to validate the backplane connector standard, mounting hardware, structural design, as well as serve as a simple, replicable board that can be used in workshops to demonstrate KiCad, reading datasheets, and interacting with the project through GitHub.

Which requirement(s) does this satisfy?

N/A

Pre-work checklist

• Relevant subsystem information doc section (mission context, electrical requirements, part tradeoffs) exists and covers this work
• (Hardware) Relevant part(s) selected with a documented tradeoff, or reusing an already-approved part
• (Hardware) Derating requirements for any new part identified before layout begins
• (Hardware) If this touches envelope, mass, power architecture, RBF, deployment switches, or RF: CDS-compliance checklist reviewed
• (Firmware) Interface sketched out and classified into Question/Command/Loop per the event-driven refactor guideline
• (Firmware) Proposed event UID(s) checked against the existing UID registry for collisions
• Known open questions or risks are listed below

Open questions / risks

• Is the RP2040 suitable or should we use a different MCU?
• Which I2C device should we use?
• What should we sample with the ADC?