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1.
▲
Show HN: I made open source, zero power PCB hackathon badges
(github.com/KaiPereira)
158 points
kaipereira
2 months ago
18 comments
2.
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Show HN: I designed my own 3D printer motherboard
(github.com/KaiPereira)
127 points
kaipereira
6 months ago
40 comments
3.
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I built a system to detect guns in schools and call 911
(github.com/KaiPereira)
8 points
kaipereira
2 years ago
10 comments