Moritz
@moritzhaarmann.bsky.social
Always at the limit, somewhere between Software, Hardware and Daycare.
Stuttgart/0711.
Stuttgart/0711.
So I got myself a new garmin, went for a run and fucking broke my foot.
This has got to be the least lucky purchase I’ve ever made.
This has got to be the least lucky purchase I’ve ever made.
November 13, 2025 at 12:30 PM
So I got myself a new garmin, went for a run and fucking broke my foot.
This has got to be the least lucky purchase I’ve ever made.
This has got to be the least lucky purchase I’ve ever made.
Just received an email that my Dutch F1 Sunday ticket got upgraded for the full weekend. I love free stuff.
August 6, 2025 at 9:25 PM
Just received an email that my Dutch F1 Sunday ticket got upgraded for the full weekend. I love free stuff.
This is such a mind blowing project!
As a sidetone: You start to appreciate hardware projects so much more when you're building your own.
As a sidetone: You start to appreciate hardware projects so much more when you're building your own.
I built a ridiculous 1000 pixel display that takes an hour to draw an image and I'm now asking the internet to draw on it (what could go wrong?)
Please submit some 40×25 pixel art at kilopx.com!
Please submit some 40×25 pixel art at kilopx.com!
August 4, 2025 at 8:57 PM
This is such a mind blowing project!
As a sidetone: You start to appreciate hardware projects so much more when you're building your own.
As a sidetone: You start to appreciate hardware projects so much more when you're building your own.
Also we’re back from Paris, that city just blows my mind every single time.
July 29, 2025 at 9:27 AM
Also we’re back from Paris, that city just blows my mind every single time.
The thing with a first step is: you just have to do it.
Posted something, might regret later: How to build a split flap display. #buildinpublic #splitflap #maker
youtube.com/shorts/EPOdZ...
Posted something, might regret later: How to build a split flap display. #buildinpublic #splitflap #maker
youtube.com/shorts/EPOdZ...
How to build a split flap display. #buildinpublic #splitflap #maker
YouTube video by flip forward
youtube.com
July 29, 2025 at 9:24 AM
The thing with a first step is: you just have to do it.
Posted something, might regret later: How to build a split flap display. #buildinpublic #splitflap #maker
youtube.com/shorts/EPOdZ...
Posted something, might regret later: How to build a split flap display. #buildinpublic #splitflap #maker
youtube.com/shorts/EPOdZ...
Spent the past few days recording footage of me assembling split flap displays, and I'm slowly running out of excuses for not publishing those.
I've always looked forward to be able to "get real" and speak about what I'm doing, but frankly, right now I'm rather terrified.
#buildinpublic
I've always looked forward to be able to "get real" and speak about what I'm doing, but frankly, right now I'm rather terrified.
#buildinpublic
July 23, 2025 at 9:26 AM
Spent the past few days recording footage of me assembling split flap displays, and I'm slowly running out of excuses for not publishing those.
I've always looked forward to be able to "get real" and speak about what I'm doing, but frankly, right now I'm rather terrified.
#buildinpublic
I've always looked forward to be able to "get real" and speak about what I'm doing, but frankly, right now I'm rather terrified.
#buildinpublic
Reposted by Moritz
Ihr habt so n kleines bisschen Hunger, aber wollt euch jetzt noch nix machen, weil zu nah an der nächsten Mahlzeit.
Was holt ihr euch aus dem (Kühl-)Schrank und stopft es euch in den Mund?
Hier ist es:
1 Scheibe Käse
Was holt ihr euch aus dem (Kühl-)Schrank und stopft es euch in den Mund?
Hier ist es:
1 Scheibe Käse
July 19, 2025 at 2:56 PM
Ihr habt so n kleines bisschen Hunger, aber wollt euch jetzt noch nix machen, weil zu nah an der nächsten Mahlzeit.
Was holt ihr euch aus dem (Kühl-)Schrank und stopft es euch in den Mund?
Hier ist es:
1 Scheibe Käse
Was holt ihr euch aus dem (Kühl-)Schrank und stopft es euch in den Mund?
Hier ist es:
1 Scheibe Käse
I think today is a firmware day, but I'm kind of holding my horses until my new DisplayLink-Dock arrives so I can finally use my M1 MBA with two displays (it's just how i work).
While I enjoy using Windows for all things CAD, I'm way too locked in on Mac for anything software.
While I enjoy using Windows for all things CAD, I'm way too locked in on Mac for anything software.
July 10, 2025 at 7:36 AM
I think today is a firmware day, but I'm kind of holding my horses until my new DisplayLink-Dock arrives so I can finally use my M1 MBA with two displays (it's just how i work).
While I enjoy using Windows for all things CAD, I'm way too locked in on Mac for anything software.
While I enjoy using Windows for all things CAD, I'm way too locked in on Mac for anything software.
Also went to the pool for a 1.5k swim and … that was work at 14 degrees ❄️
July 8, 2025 at 7:39 PM
Also went to the pool for a 1.5k swim and … that was work at 14 degrees ❄️
Spent the day refining the target architecture for what I want to build. Always cool to see how much clarity „writing something down“ brings.
Also LLMs for early feedback, really useful, but I do include a „never rewrite“ in my default prompt.
Also LLMs for early feedback, really useful, but I do include a „never rewrite“ in my default prompt.
July 8, 2025 at 7:38 PM
Spent the day refining the target architecture for what I want to build. Always cool to see how much clarity „writing something down“ brings.
Also LLMs for early feedback, really useful, but I do include a „never rewrite“ in my default prompt.
Also LLMs for early feedback, really useful, but I do include a „never rewrite“ in my default prompt.
Today it’s for a bit of prototyping a project/startup idea. Not hardware, all software.
Is it only me or does it feel extremely weird going back to coding with no LLM support?
Is it only me or does it feel extremely weird going back to coding with no LLM support?
July 8, 2025 at 7:57 AM
Today it’s for a bit of prototyping a project/startup idea. Not hardware, all software.
Is it only me or does it feel extremely weird going back to coding with no LLM support?
Is it only me or does it feel extremely weird going back to coding with no LLM support?
Having a bit of a brain melt today - I added reverse polarity protection using a P-Channel MOSFET. Trying to get a better understanding I discussed it with ChatGPT (and Claude), but both broke down in explaining the schematic
July 7, 2025 at 10:30 AM
Having a bit of a brain melt today - I added reverse polarity protection using a P-Channel MOSFET. Trying to get a better understanding I discussed it with ChatGPT (and Claude), but both broke down in explaining the schematic
Totally nailed it this morning by placing a 600€-order on JLCPCB. With a wrong component placement. Rockstar moment.
July 7, 2025 at 9:20 AM
Totally nailed it this morning by placing a 600€-order on JLCPCB. With a wrong component placement. Rockstar moment.
I’ve got 3 weeks between the old job and the new one - time for intense side project time!
July 7, 2025 at 9:18 AM
I’ve got 3 weeks between the old job and the new one - time for intense side project time!
Reposted by Moritz
World War 3 kinda sucks, but you know, it was either this or pronouns
June 22, 2025 at 5:08 AM
World War 3 kinda sucks, but you know, it was either this or pronouns
After countless hours debugging my fine pitch soldering skills - the TMC just didn’t turn on - I figured that two zones on my PCB simply aren’t connected.
And the embarrassing part is that the DRC very clearly stated that, I just didn’t notice.
And the embarrassing part is that the DRC very clearly stated that, I just didn’t notice.
June 2, 2025 at 8:39 AM
After countless hours debugging my fine pitch soldering skills - the TMC just didn’t turn on - I figured that two zones on my PCB simply aren’t connected.
And the embarrassing part is that the DRC very clearly stated that, I just didn’t notice.
And the embarrassing part is that the DRC very clearly stated that, I just didn’t notice.
Did my first 1k outdoor pool swim today - that was just good.
May 29, 2025 at 11:14 AM
Did my first 1k outdoor pool swim today - that was just good.
Reposted by Moritz
If I owned SpaceX I would just rebrand as a fireworks company
May 28, 2025 at 2:22 AM
If I owned SpaceX I would just rebrand as a fireworks company
Pretty happy with the new connection board design that finally cleans up the backside of the displays.
Interestingly I’m spending most time on stuff that I would have never thought I’d spend a lot of time on - but cable management is really a big topic, especially with 5+ displays.
Interestingly I’m spending most time on stuff that I would have never thought I’d spend a lot of time on - but cable management is really a big topic, especially with 5+ displays.
May 27, 2025 at 9:12 PM
Pretty happy with the new connection board design that finally cleans up the backside of the displays.
Interestingly I’m spending most time on stuff that I would have never thought I’d spend a lot of time on - but cable management is really a big topic, especially with 5+ displays.
Interestingly I’m spending most time on stuff that I would have never thought I’d spend a lot of time on - but cable management is really a big topic, especially with 5+ displays.
teenage mutant bärensee turtles.
May 19, 2025 at 3:41 PM
teenage mutant bärensee turtles.
I admit, that was a tad more complicated than originally thought. But I can now swap flaps and have a fully working gantry.
May 12, 2025 at 9:59 PM
I admit, that was a tad more complicated than originally thought. But I can now swap flaps and have a fully working gantry.
Nothing better than a fresh delivery from JLCPCB in the morning.
May 2, 2025 at 9:41 AM
Nothing better than a fresh delivery from JLCPCB in the morning.
Sidequest Update: I now have a somewhat working x/y/z gantry. Out of some misguided sense for adventures, I designed all parts myself. That was more work than expected, but also more fun.
May 1, 2025 at 7:49 PM
Sidequest Update: I now have a somewhat working x/y/z gantry. Out of some misguided sense for adventures, I designed all parts myself. That was more work than expected, but also more fun.
went on a ridiculous side quest and decided to build a little sorting/pick and place machine for my printed flaps.
The problem is that I have roughly 500 packs of 43 flaps, but none of them are sorted. Admitted, it's probably faster to hand sort them than to build a machine for it but...
The problem is that I have roughly 500 packs of 43 flaps, but none of them are sorted. Admitted, it's probably faster to hand sort them than to build a machine for it but...
April 27, 2025 at 10:03 AM
went on a ridiculous side quest and decided to build a little sorting/pick and place machine for my printed flaps.
The problem is that I have roughly 500 packs of 43 flaps, but none of them are sorted. Admitted, it's probably faster to hand sort them than to build a machine for it but...
The problem is that I have roughly 500 packs of 43 flaps, but none of them are sorted. Admitted, it's probably faster to hand sort them than to build a machine for it but...
Went on vacation, found some time to blog about things I think about: software architects.
blog.moritzhaarmann.de/software-arc...
blog.moritzhaarmann.de/software-arc...
Software Architects – blog.moritzhaarmann.de
blog.moritzhaarmann.de
April 24, 2025 at 10:25 AM
Went on vacation, found some time to blog about things I think about: software architects.
blog.moritzhaarmann.de/software-arc...
blog.moritzhaarmann.de/software-arc...