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Show HN: Offline SOS signaling+recovery app for disasters/wars

(github.com)
158 points nizarmah | 1 comments | 01 Apr 25 21:58 UTC | HN request time: 0.212s | source

A couple of months ago, I built this app to help identify people stuck under rubble.

First responders have awesome tools. But in tough situations, even common folks need to help.

After what happened in Myanmar, we need something like this that works properly.

It has only been tested in controlled environments. It can also be improved; I know BLE is not _that_ effective under rubble.

If you have any feedback or can contribute, don't hold back.

1. DoingIsLearning ◴[02 Apr 25 09:07 UTC] No.43554886[source]▶
Not really high tech but worth mentioning that some shortwave portable radios (a world radio receiver is an item you should have in your earthquake emergency supplies) have a portable blare out alarm horn function to signal your presence to first responders.

Although it has the obvious limitation that you would have to be within arm's reach of it before you were to be trapped in a collapsing building, and sound can travel sufficiently under rumble.