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librecube

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open source space and earth exploration: https://librecube.org/2 Servers

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8 Oct 2018
15:01:07@artur.librecube:matrix.orgArtur Scholz changed the room topic to "open source space and earth exploration: https://librecube.org/" from "open source space and earth exploration: https://librecube.net/".
18 Oct 2018
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4 Nov 2018
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8 Nov 2018
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20:39:33@kerosene98:matrix.orgkerosene98

Hi, I am starting to read about the CAN bus for space use and was wondering if anyone here has any experience or words of wisdom?

I am just breaking into the space realm of business and still looking for my niche to be employed in the industry. My embedded skills are a work in progress, and ideally looking for a promotional project to help aid my employment status within the cubesat arena.

CAN bus knowledge is at the top of my agenda to master, any guides/ demo project ideas etc would be appreciated.

21:20:47@artur.librecube:matrix.orgArtur Scholz kerosene98: Great to hear about your interest in CAN! We are working on a prototype to demonstrate a mix of ECSS-CAN (for redundancy managemnt) and ISO-TP (for large messages)
21:21:03@artur.librecube:matrix.orgArtur ScholzDocuments are here: https://vault.dediserve.com/s/r2yM6NWfQLa9Dtj
21:21:40@artur.librecube:matrix.orgArtur ScholzThe micropython code is here: https://gitlab.com/librecube/prototypes/micropython-space-can
21:23:51@artur.librecube:matrix.orgArtur ScholzFeel free to post to the forum for detailed questions: https://community.libre.space/t/ecss-can-bus-protocol-for-cubesats/1086/5
9 Nov 2018
16:59:31@kerosene98:matrix.orgkerosene98@artur.librecube:matrix.org: thanks for the reply. The resources you provided are very good and at a level that can be digested comfortably.
16 Nov 2018
22:54:17@chaotika53:matrix.org@chaotika53:matrix.org joined the room.
19 Nov 2018
22:23:10@artur.librecube:matrix.orgArtur Scholz kerosene98: More technical details about the LibreCube CAN bus implementation will be available here (still in progress): https://wiki.librecube.org/index.php?title=CAN_System_Bus
20 Nov 2018
08:32:21@kerosene98:matrix.orgkerosene98Thank you 👍
21 Nov 2018
13:31:39@chaotika53:matrix.org@chaotika53:matrix.org left the room.
19 Dec 2018
19:59:40@artur.librecube:matrix.orgArtur ScholzHere the final version of SpaceCAN, the reliable and robust monitoring & control bus for LibreCube systems (and other CubeSats): https://wiki.librecube.org/index.php?title=SpaceCAN
20:00:39@artur.librecube:matrix.orgArtur ScholzAn implementation of SpaceCAN in micropython is here https://gitlab.com/librecube/elements/LC2901 and the docs for it are here https://micropython-space-can.readthedocs.io
28 Dec 2018
23:23:23@INCO.matrix:matrix.orgINCO joined the room.
23:30:32@INCO.matrix:matrix.orgINCOHi! I heard about LibreCube and especially like your approach of integrating existing space industry standards into the CubeSat formfactor. Do you already have plans for an on-board software architecture or operating system?
29 Dec 2018
20:51:36@artur.librecube:matrix.orgArtur ScholzThis is still open. Something like FreeRTOS or RTEMS could be used; fully open source. Or NASA OSAL.
22:35:22@INCO.matrix:matrix.orgINCOOk! Our institues OBSW people have made quite some progress in porting the open source RTEMS based FlightSoftwareFrameWork to other architectures besides LEON3FT since it was presented @ OSCW, maybe that could also be an option after they have improved the documentation. ;)
31 Dec 2018
08:26:43@artur.librecube:matrix.orgArtur ScholzThat's interesting! Please share more details.
08:27:24@artur.librecube:matrix.orgArtur ScholzPS: As you mentioned LEON, there is a Micropython port for it: https://nsc.nasa.gov/docs/default-source/event-docs/trismac-2018/trismac-presentations/fedi-casas-micropython.pdf
5 Jan 2019
21:43:45@bastla:matrix.orgbastlathe link seems to be broken
8 Jan 2019
16:51:46@artur.librecube:matrix.orgArtur ScholzSeems it works only from time to time (?). Anyways, here the pdf:
16:51:48@artur.librecube:matrix.orgArtur Scholzfedi-casas-micropython.pdf
fedi-casas-micropython.pdf
m.file
9 Jan 2019
13:27:43@artur.librecube:matrix.orgArtur ScholzModels of ESA satellites (for 3d printing): http://aldata.es/#/model-downloads
7 Feb 2019
08:49:46@artur.librecube:matrix.orgArtur Scholz changed their profile picture.
11 Feb 2019
22:46:42@artur.librecube:matrix.orgArtur Scholzjust wow! https://sst-soa.arc.nasa.gov/
16 Feb 2019
10:53:24@artur.librecube:matrix.orgArtur Scholz

Here is a challenge: Who wants to re-engineer a CubeSat integration jig?
(That is a mechanical fixture to hold the CubeSat above the desk to support assembly)?

An inspiration on how it could look like is here:
https://www.isispace.nl/product/integration-jig-set-for-2u3u-cubesats/

The goal is to recreate this in OpenSCAD or FreeCAD and make the design
available for free under an open source license.

To contribute, here is the workflow:

  • Fork it (https://gitlab.com/librecube/elements/LC3203)
  • Create your feature branch (git checkout -b feature/holder)
  • Make your contributions
  • Commit your changes (git commit -am 'Add some things')
  • Push to the branch (git push origin feature/holder)
  • Create a new Pull Request

PS: You may want to refer to this repository on how to structure and
name folders and files.

PPS: The progress of this work package is tracked here:
https://tree.taiga.io/project/arturscholz-librecube/us/21?kanban-status=1762706

PPPS: All currently define LibreCube projects are tracked here:
https://tree.taiga.io/project/arturscholz-librecube/kanban


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