| 25 Sep 2024 |
 Artur Scholz | Yes, in particular since that famous MCP25625 is so huge, it's already twice the size of the MCU ! There must be alternatives.... I hope | 20:55:03 |
 cajt | .. but hey, dual 10base-t1s via some macphys would be a small step, starting from two CAN peripherals. | 20:55:32 |
| cajt | Here: STM32H523 it got 2xfdcan, <= 512kib flash, 272 Kibyte ram and some smallish pacakges: LQFP48, UFQFPN48, UFBGA100 (all 7x7mm). The WLCSP39 (2.76 x 2.78 mm, pitch 0.4mm is just too far) | 21:07:42 |
| cajt | not sure how many the layers the bga100 actually needs, but it'll require fine vias. | 21:08:44 |
| cajt | ... and for those who care, it got ETM too | 21:09:49 |
| cajt | What is the target application of all of this? | 21:21:24 |
| Artur Scholz | To be used as responder nodes that are located on each board. The controller node will be raspi or beagle board or the like. | 21:23:00 |
| cajt | how patterns repeat ;-)
Two things to concider:
- Is the redundant bus attachment actually required? Maybe redundant nodea might be a good design choice anyways, each connected to only on of the busses.
- UART multi-drop bus is probably an option. a single-initiator/multi-responder pattern is not too terrible to implement.
| 21:27:14 |
| cajt | maybe the uavcan, opencyphal and dronecan people have similar requirements to their hardware. Might be an area to browse around. | 21:33:16 |
| 26 Sep 2024 |
 Red | * I just accepted the link sent by email - now I am fullly in the
news-let-ter ! | 04:42:09 |
| 27 Sep 2024 |
| Artur Scholz | Hi all! In an effort to add/update assembly guides, we are starting with an easy one, the 1U structure. Have a look; and if you can, re-build one at home and share your experience! https://gitlab.com/librecube/elements/LC2101/-/blob/main/docs/assembly/README.md?ref_type=heads | 13:59:27 |
 mimansha09 | In reply to @redsharpbyte:matrix.org
Welcome mimansha09
"beginner friendly" depends what you can do already 🙂
So what do you have some experience with:
- git
- bash
- python
- flying a spacecraft to the moon
- ...
python :D | 14:23:25 |
| Red | how much of python and of git? | 17:37:29 |
| 29 Sep 2024 |
| cajt | Can you actually know all of Git? | 10:07:00 |
| Red | you can know all of man it's easier lol | 10:27:01 |
| Red | but at least I want to know how much efforts mentors needs to do with someone if they dont know the word "git" of if they are further thinking git pull is cloning. 🙂 | 10:27:52 |
| 30 Sep 2024 |
|  Pramod kumar joined the room. | 16:40:50 |
| 1 Oct 2024 |
| Artur Scholz | Rover wheel drive assembly: https://gitlab.com/librecube/prototypes/platform-wheel-drive/-/blob/main/docs/assembly/README.md?ref_type=heads | 15:08:58 |
| Artur Scholz | 
Download IMG_20241001_170917.jpg | 15:14:04 |
| Artur Scholz | @room Attention FreeCAD enthusiasts: The 3U structure still needs to be worked on (https://gitlab.com/librecube/prototypes/platform-3u-structure), so that we can 3D print it and use for a big rover model. Who is up for this task? You can refer to the 2U repo as reference: https://gitlab.com/librecube/elements/LC2102 | 15:16:55 |
| 2 Oct 2024 |
 Jan-Peter | I was working on a 3U frame.
I have to double check what the last situation was | 08:09:25 |
| Artur Scholz | Check the repo link. It is your work 😃 | 08:12:40 |
| 4 Oct 2024 |
| Artur Scholz | In reply to @artur.librecube:matrix.org
@room Attention FreeCAD enthusiasts: The 3U structure still needs to be worked on (https://gitlab.com/librecube/prototypes/platform-3u-structure), so that we can 3D print it and use for a big rover model. Who is up for this task? You can refer to the 2U repo as reference: https://gitlab.com/librecube/elements/LC2102 @room This task is still unassigned. Do YOU want to work on it? It is not a complicated task, and ideal for experimenting with FreeCAD. I recommend to open the 2U and 3U in parallel and then try to fix the 3U to follow the same design steps as the 2U (with dimensions scaled for the 3U). | 13:00:39 |
| 7 Oct 2024 |
| Jan-Peter | My name is Jan-Peter and I support this message. | 10:50:06 |
| Jan-Peter | 
Download ima_4fc53c4.jpeg | 12:07:24 |
| Jan-Peter | I have stacked my first plastic PCBs | 12:07:43 |
| Jan-Peter | Artur Scholz: Are you sure that the PCBs should be 10mm apart? It seems so close together ... | 12:08:22 |
| Artur Scholz | I did clearly say 16mm | 12:14:48 |
| cajt | Just out of curiosity, why did the structure get such a complex geometry (and so many screws in sizes I don't have on stock)? Is for specific solar panels or 3d-printing? (didn't see rationale in git) | 12:44:05 |
| Artur Scholz | The structure was (almost) not changed. The screws are now Torx, because Torx is just better for fastening those small screws. But you can still use the hex screws, the dimensions are equal. | 15:13:40 |
