SOS Flashlight App transforms your smartphone into a powerful Morse code signaling device, capable of transmitting emergency messages or custom text through multiple channels simultaneously.

Signal Transmission Methods

Flashlight: Utilizes your device’s camera led flashlight to transmit visual signals.
Screen Light: Maximizes screen brightness to create visual signals in darkness.

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[–] 9point6@lemmy.world 13 points 1 week ago* (last edited 1 week ago) (2 children)

For anyone that doesn't somehow already know, SOS is pretty simple to learn

It's just three threes of dots dashes dots.

. . . - - - . . .

Sentences finish with a full stop (or period if you're American), so you can remember it's the dots last (and therefore first)

Hopefully you never need to use it, but better to know it and not need it than the alternative

[–] CocaineShrimp@sh.itjust.works 3 points 1 week ago

To add onto that: dots are short, dashes are long. So if you're using a flashlight, or something else, it would be:

short, short, short, long, long, long, short, short, short

Then include a small pause (1-3 seconds) once you've sent the SOS before repeating. You want to continuously repeat this for as long as you can until you know someone's received your message.

[–] nutomic@lemmy.ml 11 points 1 week ago* (last edited 1 week ago) (1 children)

Message Customization: Send any custom message in Morse code.

Morse Code Decoder: Convert received Morse code into readable text.

Neat, this means you can talk to someone in morse code without having to learn morse. Did anyone try how well it works in practice?

[–] over_clox@lemmy.world 8 points 1 week ago* (last edited 1 week ago)

I just tried it, sadly it doesn't have a camera sensor option to detect and translate flashing Morse Code from another source, but it does have a Morse to Text translator that you can manually enter the incoming dots and dashes and it'll translate back to text.

The send feature converts plain text to the appropriate dots and dashes, with options to flash the screen, the flashlight, beep over the speaker and also vibrate. Dunno why they chose red as the screen flashing color with no option to change color though..

For it to be version 1.0.1, its actually alright, it does work, although slightly clunky (but simple) UI right now. Everything, even the custom text you enter, has to be accessed in the Settings menu.

Its worth a try, I'll be keeping it on my devices to go alongside the Survival Manual app (different developer), and hope to see some improvements and new features down the road...

[–] Samsy@lemmy.ml 4 points 1 week ago (1 children)

Interesting idea. But I would rethink the logo. *insert "it's a penis" -meme

[–] merde@sh.itjust.works 3 points 1 week ago

i just wrote to its developer with a link to this post. They may read your comment and rethink

[–] oeuf@slrpnk.net 2 points 1 week ago

Good one, especially for hikers and sailors 👍