Show HN: We chased a weather balloon across Montana and never found it
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Since April, I have been working with Sam Flynn (https://drook.dev) to make this balloon payload, UpLink. We did a similar launch last year with Hack Club but this was our first independent launch.UpLink was a 491 gram payload testing the insulation properties of 3D printing filaments, while also transmitting 320x240 images over a radio link -- up from the 18x10 images last year!This is a writeup on our engineering process, mistakes made, and learning experiences. It covers:- Custom electronics designed in KiCad- Firmware design- Results from the data we received on the ground- Image transmission- Launch day logistics, and where things went wrongAll hardware, software, firmware, and CAD is available on GitHub: https://github.com/radeeyate/UpLink, licensed + certified as open source hardware: https://certification.oshwa.org/us002826.htmlIf you just want to see the images received, I put up a gallery here: https://uplink.gallery.radi8.dev/If you have any questions, comments, or concerns, let me know. I'm happy to answer anything!
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We chased a weather balloon across Montana and never found it is a digital product or tool described as: Since April, I have been working with Sam Flynn (https://drook.dev) to make this balloon payload, UpLink. We did a similar launch last year with Ha...
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The initial public indexing or launch date for We chased a weather balloon across Montana and never found it within our tracked developer communities was recorded on August 21, 2026.
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The original author or development team describes the product as follows: "Since April, I have been working with Sam Flynn (https://drook.dev) to make this balloon payload, UpLink. We did a similar launch last year with Hack Club but this was our first independent launch...."
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I'd assume hydrogen is a significantly cheaper fill gas than helium. Other than the danger during filling, any other concerns?
"which would have otherwise been expensive for the budget of two high school students"High school students !? You are more capable than most of adults from my country, even "of the trade" if I might say.
Must have been a UAP.
I live in Montana and routinely hunt the Musselshell river valley/Meagher county area. It's maybe my favorite place in the world. So few folks have been there, but spend some time there and you might just find yourself feeling depressed when you leave and not knowing why.Glad to see other folks go through the area. The wind in Judith Gap is insane, so I'm surprised that you never found it. I'll keep an eye out when I'm out there in Sept/Oct.
Fun writeup! I was surprised by the part about styrofoam boxes though: Despite their popularity, they have a few disadvantages:
They come in predefined sizes which mandate a certain weight allowance
They cannot be flexible for your specific payload, making it hard to be efficient with payload layout
They are expensive compared to more custom solutions
This shocks me, as styrofoam is one of the easiest materials in the world to cut, shape, fasten, and customize to your heart's content. I'm all for 3d printing stuff, but in the theater world we build a ton of very detailed (and shockingly durable) stuff out of foam all the time....Buying a styrofoam box and just accepting that it's gotta be that shape and size feels like a huge waste.
They come in predefined sizes which mandate a certain weight allowance
They cannot be flexible for your specific payload, making it hard to be efficient with payload layout
They are expensive compared to more custom solutions
This shocks me, as styrofoam is one of the easiest materials in the world to cut, shape, fasten, and customize to your heart's content. I'm all for 3d printing stuff, but in the theater world we build a ton of very detailed (and shockingly durable) stuff out of foam all the time....Buying a styrofoam box and just accepting that it's gotta be that shape and size feels like a huge waste.
Wait, so at 28k/km the temp goes up to 15C?This is all very cool but this temperature reading caught my eye as unexpected.
The images seem a bit scrambled, presumably due to missing data blocks. At that low a resolution, have you considered maybe Robot36 SSTV?
Impressive level of detail, impressive work for anyone, much less high school students.
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