I cant write code but I have an idea if someone wants to do something with this for devtember…
Could you write an iphone and/or android app that can accept text input, convert that to Morse code, and transmit using the camera flash?
Ideally it could also ‘see’ flashes using the camera, and convert them back to text.
The premise behind this is if you’re stranded somewhere (hiking, sailing, whatever) most people don’t carry a radio or a EPIRB, but almost always have their phone. You could contact a search party without needing network coverage, if you have line of sight - so for spotter planes/helicopters, or other hikers a significant distance away and get help.
Yeah that’s what gave me the idea - I’m ex-Army. But unless you’re a trained operator sending and receiving messages in Morse is time consuming and prone to false interpretation. Using a camera sensor to receive, and flash to transmit, with the phone handling interpretation, the sped would be very fast and the content will not be limited by operator training.