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:...
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