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New top story on Hacker News: Show HN: Tommy – Turn ESP32 devices into through-wall motion sensors

Show HN: Tommy – Turn ESP32 devices into through-wall motion sensors
6 by mike2872 | 0 comments on Hacker News.
Hi HN! I would like to present my project called TOMMY, which turns ESP32 devices into motion sensors that work through walls and obstacles using Wi-Fi sensing. TOMMY started as a project for my own use. I was frustrated with motion sensors that didn't detect stationary presence and left dead zones everywhere. Presence sensors existed but were expensive and needed one per room. I explored echo localization first, but microphones listening 24/7 felt too creepy. Then I discovered Wi-Fi sensing - a huge research topic but nothing production-ready yet. It ticked all the boxes: could theoretically detect stationary presence through breathing/micromovements and worked through walls and furniture so devices could be hidden away. Two years and dozens of research papers later, TOMMY has evolved into software I'm honestly quite proud of. Although it doesn't have stationary presence detection yet (coming Q1 2026) it detects motion really well. It works as a Home Assistant Add-on or Docker container, supports a range of ESP32 devices, and can be flashed through the built-in tool or used alongside existing ESPHome setups. I released the first version a couple of months ago on Home Assistant's subreddit and got a lot of interest and positive feedback. More than 200 people joined the Discord community and almost 2,000 downloaded it. Right now TOMMY is in beta, which is completely free for everyone to use. I'm also offering free lifetime licenses to every beta user who joins the Discord channel. You can read more about the project on https://ift.tt/Xi9FWLJ . Please join the Discord channel if you are interested in the project. A note on open source: There's been a lot of interest in having TOMMY as an open source project, which I fully understand. I'm reluctant to open source before reaching sustainability, as I'd love to work on this full time. However, privacy is verifiable - it's 100% local with no data collection (easily confirmed via packet sniffing or network isolation). Happy to help anyone verify this.

Wednesday, October 22, 2025

Tuesday, October 21, 2025

Monday, October 20, 2025

What football can learn from NFL's international games

With La Liga and Serie A set to stage regular-season matches overseas, how successful have the NFL's international games been, and what do players and fans think of them?

from BBC News https://www.bbc.com/sport/american-football/articles/c0qpwg03pzpo?at_medium=RSS&at_campaign=rss
via IFTTT

Sunday, October 19, 2025

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Sunday, October 12, 2025

New top story on Hacker News: Show HN: I built a simple ambient sound app with no ads or subscriptions

Show HN: I built a simple ambient sound app with no ads or subscriptions
9 by alpaca121 | 2 comments on Hacker News.
I’ve always liked having background noise while working or falling asleep, but I got frustrated that most “white noise” or ambient sound apps are either paywalled, stuffed with ads, or try to upsell subscriptions for basic features. So I made Ambi, a small iOS app with a clean interface and a set of freely available ambient sounds — rain, waves, wind, birds, that sort of thing. You can mix them, adjust volume levels, and just let it play all night or while you work. Everything works offline and there are no hidden catches. It’s something I built for myself first, but I figured others might find it useful too. Feedback, bugs, and suggestions are all welcome. https://ift.tt/yqhtIBU...

Saturday, October 11, 2025

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