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SuperSOS

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@maythayus maythayus released this 17 Feb 12:12
· 2 commits to master since this release
SuperSOS.V1
f9004b2

SuperSOS

Android emergency assistance app (Kotlin / Jetpack Compose).

Features

  • SOS:

    • Get GPS location.
    • Text-to-Speech (TTS) voice message with the location.
    • Emergency call (automatic if CALL_PHONE is granted, otherwise open the dialer).

  • Smart ring (App ECTRI):

    • BLE scan, connect, notifications.
    • Read/display vitals:
      • Heart rate (HR)
      • SpO2 (oxygenation)
      • Blood pressure (SYS/DIA)
      • Temperature

  • Vital monitoring (Option A):

    • Periodic vitals checks.
    • Rule-based detection + safeguard (2 consecutive out-of-threshold readings).
    • Alert with a 10s countdown + Cancel button.
    • If not cancelled: triggers SOS workflow (GPS + voice + call).

  • “I can’t speak” button:

    • Reads a clear TTS message for first responders:
      • consent for emergency care
      • GPS position + Maps link
      • latest measured vitals

Android permissions

The app requests (depending on actions):

  • Location:

    • ACCESS_FINE_LOCATION
    • ACCESS_COARSE_LOCATION

  • Bluetooth (Android 12+):

    • BLUETOOTH_SCAN
    • BLUETOOTH_CONNECT

  • Calling (for direct calls):

    • CALL_PHONE

ECTRI BLE (technical details)

Main UUIDs (extracted from the ECTRI app):

  • Service : F000EFE0-0451-4000-0000-00000000B000
  • TX (write) : F000EFE1-0451-4000-0000-00000000B000
  • RX (notify) : F000EFE3-0451-4000-0000-00000000B000
  • CCCD : 00002902-0000-1000-8000-00805f9b34fb

Message types (byte 0 of 20-byte RX frames):

  • 0x0A: HR
  • 0x11: Blood pressure
  • 0x12: SpO2
  • 0x40: Temperature

Default monitoring thresholds

  • SpO2: < 88%
  • HR: > 160 bpm or < 40 bpm
  • Temp: > 40°C or < 35°C
  • Blood pressure: SYS > 180 or DIA > 120

Quick start

  1. Enable Bluetooth + location.
  2. Open the app.
  3. In “ECTRI ring”:
    • “Scan / find ring”
    • “Connect …”
  4. Enable “Vital monitoring”.
  5. If an alert triggers: cancel if it is a false positive, otherwise let the app trigger SOS.

Disclaimer

This app is not a medical device. Measurements and alerts are indicative and may be inaccurate depending on hardware, how the ring is worn, and usage conditions.

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