# utkarshshinde873-ui/sos-device-for-womens-and-elderly-safety architecture

> Architecture diagram of the GitHub repository utkarshshinde873-ui/sos-device-for-womens-and-elderly-safety, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-26). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/utkarshshinde873-ui/sos-device-for-womens-and-elderly-safety
- Repository: https://github.com/utkarshshinde873-ui/sos-device-for-womens-and-elderly-safety

## Overview

This is a small Arduino SOS device. A button press triggers firmware to obtain GPS coordinates and use a GSM module to send an SMS to predefined contacts; an emergency call is optional. The repository contains only the Arduino sketch, and no source excerpt was provided, so relationships reflect the README rather than inspected implementation details.

Main entry points: [`suraksha_code/suraksha_code.ino`](https://github.com/utkarshshinde873-ui/sos-device-for-womens-and-elderly-safety/blob/main/suraksha_code/suraksha_code.ino) (Arduino firmware)

## Diagram (Mermaid)

```mermaid
flowchart TD

node_user(("Device user"))
node_button["SOS button"]
node_firmware["Arduino firmware<br/>[suraksha_code.ino]"]
node_gps["GPS module"]
node_gsm["GSM module"]
node_contacts(("Predefined contacts"))

node_user -->|"presses"| node_button
node_button -->|"triggers"| node_firmware
node_firmware -->|"fetches location"| node_gps
node_firmware -->|"sends coordinates"| node_gsm
node_gsm -->|"sends SMS"| node_contacts
node_firmware -.->|"initiates call"| node_gsm

click node_firmware "https://github.com/utkarshshinde873-ui/sos-device-for-womens-and-elderly-safety/blob/main/suraksha_code/suraksha_code.ino"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_user toneBlue
class node_button,node_gps,node_gsm,node_contacts toneIndigo
class node_firmware toneTeal
```

## Components

### Other components

- **Device user**
- **SOS button**
- [Arduino firmware](https://github.com/utkarshshinde873-ui/sos-device-for-womens-and-elderly-safety/blob/main/suraksha_code/suraksha_code.ino): `suraksha_code/suraksha_code.ino`
- **GPS module**
- **GSM module**
- **Predefined contacts**

## Connections

- Device user → SOS button: presses
- SOS button → Arduino firmware: triggers
- Arduino firmware → GPS module: fetches location
- Arduino firmware → GSM module: sends coordinates
- GSM module → Predefined contacts: sends SMS
- Arduino firmware → GSM module: initiates call