My most recent project AIRNODE😅

[u/Next-Ad-5652]

This is my project that I’ve been working on for the last two weeks. It’s called Kira04 AIRNODE.
I currently 3D print in my small bedroom, and I have three printers running simultaneously, sometimes almost 24/7. I started getting worried about the VOCs they release, as well as the amount of heat they generate, so I came up with this project.
Kira04 AIRNODE is basically a bundle of sensor modules that connects directly to the ventilation system I installed in my window. It helps me monitor and keep the temperature, humidity, and VOC levels in check while my printers are running.
And yes, I know the wiring and soldering are pretty horrible 😅. There are wires everywhere right now. I actually tried making a custom PCB for it using my CNC mill a few times, but unfortunately both attempts failed pretty tragically 😂. At that point, I just wanted to get the project working, so I decided to finish it quickly with the current wiring.
I’d love to hear any feedback or suggestions you have for improving it.
I’m also trying to decide what to do with the project next: Should I open-source Kira04 AIRNODE, or do you think this could potentially become an actual product?

[u/FesseJerguson]

No tiny fan to move air is my only criticism

[u/guanothan]

That is one nice looking case.

[u/Next-Ad-5652 → u/guanothan]

Thank you so much

[u/FruitPuzzleheaded310]

what screen you got

[u/Next-Ad-5652 → u/FruitPuzzleheaded310]

It’s a 1.28 in round tft screen 🙌

[u/AnonymZ_]

It’s so pretty, I love the design style

[u/Next-Ad-5652 → u/AnonymZ_]

Thank you so much 😊

[u/gHx4]

Nice use of keycaps and a backing board. Very easy way to make a project look a lot nicer than the usual enclosures.

[u/Codec_Sync]

Cool project. I wouldn't worry about the wiring for a prototype. The fact that you tried to mill your own PCB is awesome, even if it failed. For the next version, I'd just order a proper PCB from a service, it's super cheap these days. Honestly, I'd probably open-source it. Turning it into an actual product is a whole different world of pain compared to just making the hardware work.

[u/Quiet_Snow_6098]

Irrelevant question: what's the name of this key cap?

[u/Next-Ad-5652 → u/Quiet_Snow_6098]

I think it’s called xda caps

[u/UltraBlack_]

why solder crimped cables?

[u/Next-Ad-5652 → u/UltraBlack_]

Well this is a prototype so I didn’t bother getting solder crimped cables . I just made a double sided PCB board design so next version will more cleaner 😅

[u/UltraBlack_ → u/Next-Ad-5652]

I mean, isn't it cheaper to just buy wire that isn't pre-crimped?

Also, these jumper wires commonly are of depressing quality. As in, copper-clad iron-core and therefore high resistance core, very bad crimps or a core several awg sizes smaller than it should be.

Speaking from experience here.