By Bryan Wu
Open iTunes to buy and download apps.
Note: Your device must have a flash to use this app!
This is a handy tool for campers, scouts, boaters, (and spies)!
Use it to communicate with distant friends using Morse code, tap out a beat for a human-powered strobe light, or get the attention of rescuers.
This app is based on a “signal lamp” which is a manually-controled shuttered spotlight used on warships to communicate securely while maintaining radio silence.
Modern navies still use signal lamps, but now use infrared wavelengths and night vision goggles!
Put a paper towel tube on the flash to make a tight spotlight and you’ve got a line-of-sight communication tool that only you and your partner can see.
p.s. SOS is . . . – – – . . .
What's New in Version 1.0.1
- Added video preview to App Store
- Higher pitched tone (700Hz)
- Category: Utilities
- Updated: Mar 08, 2016
- Version: 1.0.1
- Size: 25.0 MB
- Language: English
- Seller: Bryan Wu
- © 2016 Bryan Wu
Compatibility: Requires iOS 7.1 or later. Compatible with iPhone, iPad, and iPod touch.