I built a home brewing system with an Arduino, a 4G router, mqtt/pyton stack and a grafana frontend :D
Ask HN: Most interesting tech you built for just yourself?
251–260 of 1001 posts
Re: Ask HN: Most interesting tech you built for just yourself?
#252Building a small quadcopter back in 2012 or so (before cheap toy/consumer drones were everywhere) was a fun project.
Back then, it involved an Arduino, the internals of a Wii MotionPlus (cost effective way to get the gyro sensors), a plywood frame, and the open-source 'MultiWii' code.
That first build never flew well, but soon afterwards it started to become much easier to build a very stable quadcopter, as all-in-one flight controller boards started to appear, along with more knowledge of which brushless motors, props, and ESCs worked well together.
Re: Ask HN: Most interesting tech you built for just yourself?
#253[dead]
Re: Ask HN: Most interesting tech you built for just yourself?
#254I have a rail line right under my apartment, so I built a small computer vision app running on a Rasperry Pi which records each train passing, and tries to stitch an image of it.
It has a frontend at https://trains.jo-m.ch/.
Edit: it's currently raining and the rain drops are disturbing the images a bit.
Re: Ask HN: Most interesting tech you built for just yourself?
#255The G-Seat as part of my sim-rig. 9 AC Servos, borderline dangerous, beast of a simulator. The G-Seat I decided to do better than commercial offerings (had tried "the best" and it was pretty average). CNC brake folded aluminium seat with moveable flaps controlled by AC Servos - had to 'de tune' as they were literally at rib-breaking speed initially. About a year worth of development designed and prototype in Fusion 360, through to this :
https://www.youtube.com/watch?v=STnnqonpcAU
And another vid at max rpm on the servos...
Re: Ask HN: Most interesting tech you built for just yourself?
#256I built a website to track the generation of electricity in Spain since I couldn't find a single page from the official provider that contains all the information I wanted to look at at a glance.
https://energy.antizone.site/
It scrapes different pieces of data at different intervals.
Re: Ask HN: Most interesting tech you built for just yourself?
#257I built a simple software that generates immersion of artist studios.
Example (please refresh twice to visit) here:
https://free-visit.net/fr/demo01
- Why ? As a parisian living in Belleville (poorest area), where artistes build things, I used to visit a lot of "artists studios". I have always loved this places. "J'aurai voulu être un artiste", in a way. I always thought that no photography or 360-photo would feel the Space, the immersive feeling.
Re: Ask HN: Most interesting tech you built for just yourself?
#258We recently remodelled our kitchen and dining area, and I wanted some art piece on the wall but couldn’t decide what. For months the wall was a little bare and we were having a lot of dinner guests. I realised our WiFi password was too complicated to keep reading out to family and friends so I built a QR code in Lego that automatically connects you to our guest WiFi. It looks good, and it’s Lego so it was a fun proje…
Thanks for sharing this, sounds like a cool activity to do with kids (and I didn't expect to find one on this thread!), will definitely steal that.
Re: Ask HN: Most interesting tech you built for just yourself?
#259Smart RSS reader that, right now, ingests about 1000 articles a day and picks out 300 for me to skim. Since I helped write this paper https://arxiv.org/abs/cs/0312018 I was always asking "Why is RSS failing? Why do failing RSS readers keep using the same failing interface that keeps failing?" and thought that text classification was ready in 2004 for content-based recommendation, then I wrote https://ontology2.com/es…
Nice approach! I added a very basic keyword filter in my rss reader (https://github.com/lallassu/gorss) to do some sort of "cleaning". But having a section in the reader that would filter out the articles more intelligent would be very nice, and maybe bundled them into clusters.
Re: Ask HN: Most interesting tech you built for just yourself?
#260I have a rail line right under my apartment, so I built a small computer vision app running on a Rasperry Pi which records each train passing, and tries to stitch an image of it. It has a frontend at https://trains.jo-m.ch/ . Edit: it's currently raining and the rain drops are disturbing the images a bit.
Cool! :D