This is a free version of the popular Signal Toolbox - App with adds!
Enjoy further options to use your iPhone 4 for acoustical and optical signals!
With this App, you can use it as a
- Morse device:
Enter a text and it will be translated into morse code, featuring classical sound and visible as a blinking light. The speed of the transmission can be adjusted and you can repeat your text as often as you like.
- Fully tunable siren:
Change the speed, width and hight of the siren sound to fit your needs.
Create disco feeling with adjustable frequency.
Disclaimer: Continued use of the flash
may dramatically decrease battery life