owlsat-hardware

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owlsat-hardware

Hardware repo - based on OakwoodEngineering's Obi Wan Komputer

Tools needed

KiCAD - FOSS EDA software from https://www.kicad.org/download/

LTSPICE - Circuit simulator for Windows and MacOS, works well under Wine with Linux (https://www.analog.com/en/resources/design-tools-and-calculators/ltspice-simulator.html)

(or alternatively use Falstad (https://www.falstad.com/circuit/) as it's a simpler interface and just as good for simple circuits that don't require specialized ICs)

git - FOSS version control software. Use Git Bash for Windows and optionally GitHub Desktop or another GUI for easier management.

To-do (this is somewhat still a jumble of useful ideas)

~~Copy OWK repo hardware~~
figure out what parts to keep and what to shave off
consolidate everything we need into one board
use ADM1176 properly or remove (per mlyle's suggestion)
make transimpedance amp EUV measurement subsystem
add magnetorquer subsystem (max22200 full bridge driver)
improve solar charging subsystem if needed (test existing boards first!)
make MRAM work with RP2350 (important, but requires bootloader and possibly sdk modification (and I don't yet know how to do this))
change connectors to be less expensive but still reliable (however we will likely still have to use something expensive for the important connectors like battery)
reorganize power domains
re-layout board
ensure we can build circuitpython firmware for our specific board

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Tools needed

(or alternatively use Falstad (https://www.falstad.com/circuit/) as it's a simpler interface and just as good for simple circuits that don't require specialized ICs)

git - FOSS version control software. Use Git Bash for Windows and optionally GitHub Desktop or another GUI for easier management.

To-do (this is somewhat still a jumble of useful ideas)

~~Copy OWK repo hardware~~

figure out what parts to keep and what to shave off

consolidate everything we need into one board

use ADM1176 properly or remove (per mlyle's suggestion)

make transimpedance amp EUV measurement subsystem

add magnetorquer subsystem (max22200 full bridge driver)

improve solar charging subsystem if needed (test existing boards first!)

make MRAM work with RP2350 (important, but requires bootloader and possibly sdk modification (and I don't yet know how to do this))

change connectors to be less expensive but still reliable (however we will likely still have to use something expensive for the important connectors like battery)

reorganize power domains

re-layout board

ensure we can build circuitpython firmware for our specific board

owlsat-hardware

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owlsat-hardware

Tools needed

To-do (this is somewhat still a jumble of useful ideas)

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owlsat-hardware

Tools needed

To-do (this is somewhat still a jumble of useful ideas)