SYSTEM_ARCHITECTURE

Category: 07. IoT / Hardware / Robotics
Section: Phase 2: Technical Blueprint

4. SYSTEM_ARCHITECTURE.md

Purpose: To design a realistic IoT architecture with clear data flow from sensor to user.

Act as a senior IoT architect.
Using the following PRD and TRD, design a realistic hackathon IoT architecture.

PRD: [PASTE PRD]
TRD: [PASTE TRD]

Provide:
1. Recommended hardware stack (Microcontroller, Sensors, Actuators)
2. Complete IoT architecture diagram (Text-based, showing Device → Sensor → Gateway → Cloud → Dashboard/App)
3. Device architecture (Microcontroller, Peripherals)
4. Sensor architecture (Inputs)
5. Actuator architecture (Outputs)
6. Connectivity architecture (How data travels)
7. Cloud/IoT platform architecture (Where data is stored)
8. User interface architecture (Dashboard, Mobile App, Alerts)
9. Data flow (How a sensor reading becomes a user notification)
10. Power architecture (How the device is powered)
11. Security considerations
12. Simplifications that can be made for a hackathon

Explain every technical decision in beginner-friendly language.
Do not introduce unnecessary components. Prefer a simple architecture that can be explained easily to judges.