SOS Flashlight: Advanced Morse Code Tool

SOS Flashlight: Advanced Morse Code Tool

Turn your phone into a Morse code device, to transmit emergency messages.

Weil Jimmer Flashlight Messaging

Screenshots

Screenshot of SOS Flashlight: Advanced Morse Code Tool Screenshot of SOS Flashlight: Advanced Morse Code Tool Screenshot of SOS Flashlight: Advanced Morse Code Tool

Description

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.

<b>Features</b>

- <b>Signal Transmission Methods</b>
- <b>Flashlight</b>: Utilizes your device's camera led flashlight to transmit visual signals.
- <b>Vibration</b>: Sends tactile signals through device vibration.
- <b>Audio</b>: Generates clear audio tones at 700Hz frequency.
- <b>Screen Light</b>: Maximizes screen brightness to create visual signals in darkness.
- <b>Core Capabilities</b>
- <b>Background Service</b>: Continue signaling even when the app is minimized or screen is locked.
- <b>Message Customization</b>: Send any custom message in Morse code.
- <b>Adjustable Speed</b>: Choose from slow, medium, fast, or custom transmission speeds.
- <b>Morse Code Decoder</b>: Convert received Morse code into readable text.
- <b>User Preferences</b>: Independently toggle each signaling method based on your needs.

<b>Usage</b>

- <b>Emergency SOS</b>: Press the SOS button to immediately begin transmitting the international SOS signal (... --- ...).
- <b>Custom Message</b>: Enter your text in the input field and press "Send" to convert and transmit.
- <b>Decoder</b>: Navigate to the decoder screen to translate incoming Morse code signals.
- <b>Settings</b>: Customize transmission speed and toggle different signaling methods.

<b>Contribute</b>

Contributions are welcome! Feel free to open issues or submit pull requests on our GitHub repo.

<b>License</b>

This project is licensed under the GNU General Public License (GPLv3) - see the LICENSE file for details.

<b>Source</b>

https://github.com/WeilJimmer/SOSFlashlightApp.git

What’s new (1.0.3)

# SOS Flashlight v1.0.3 (10003) - Minor Update

- Added: Screen Light color selection feature, now you can change the screen light color through the color palette.
- Fixed: Allow the use of longer time intervals to enable normal vibration for devices that cannot vibrate in extremely short periods of time.

Versions

Version Date Size Requires Android Download
1.0.3 current
acd2d233e12f2159…
2025-09-06 9.5 MB API 23
1.0.2
7802167c96e7d220…
2025-08-21 5.9 MB API 23
1.0.1
be943e077722c9f0…
2025-08-17 5.8 MB API 23

Permissions

What the app asks the system for. Android only grants sensitive access after you confirm it.

  • Foreground serviceKeep running in the background, visible in the status bar.
  • NotificationsShow notifications.
  • FOREGROUND_SERVICE_MEDIA_PLAYBACK
  • FLASHLIGHT
  • VibrationControl the vibration alert.
  • sos_flashlight.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

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