Project Examples & Blueprint Implementations
============================================

Overview
--------

This section provides real-world implementation examples and return of experience (REX) from projects using the RustiQ IoT stack. These examples serve as blueprints for implementing similar IoT solutions and demonstrate best practices for various use cases.

These projects leverage the complete RustiQ IoT stack and associated modules to solve real-world IoT challenges, from battery-powered devices to sensor networks and gateway implementations.

.. note::
   All examples in this section are based on actual implementations and provide practical insights into using the RustiQ IoT platform.

Available Project Examples
-------------------------

.. toctree::
   :maxdepth: 2
   :caption: Project Examples
   :name: project-examples

   on_battery_display
   connected_sensor_node
   gateway_node


Use Case Categories
------------------

.. contents:: :local: :depth: 2



Battery-Powered Devices
~~~~~~~~~~~~~~~~~~~~~~~

Battery-powered IoT devices present unique challenges that require careful consideration of power management, communication strategies, and operational efficiency.

**Key Challenges:**
- Power consumption optimization
- Battery life maximization
- Intermittent communication handling
- Deep sleep management
- Wake-up strategies

**Reference Implementation:** :doc:`on_battery_display`

**Key Features:**
- Dedicated power management unit with deep sleep capabilities
- Supervisor service with watchdog mechanisms
- Intelligent scheduling for power-efficient operations
- Connection management for intermittent communications

Sensor Nodes
~~~~~~~~~~~

Sensor nodes form the foundation of many IoT deployments, collecting environmental data and transmitting it to central systems.

**Key Challenges:**
- Data collection and processing
- Reliable data transmission
- Power management for continuous operation
- Sensor calibration and maintenance

**Reference Implementation:** :doc:`connected_sensor_node`

Gateway Solutions
~~~~~~~~~~~~~~~~

Gateway implementations serve as intermediaries between edge devices and cloud systems, providing protocol translation and data aggregation.

**Key Challenges:**
- Protocol translation and routing
- Data aggregation and filtering
- Network management and failover
- Security and access control

**Reference Implementation:** :doc:`gateway_node`

Implementation Patterns
----------------------

Common Service Architecture
~~~~~~~~~~~~~~~~~~~~~~~~~~

All RustiQ IoT implementations follow a consistent service architecture pattern:

.. mermaid::

   graph TB
       A[Supervisor Service] --> B[Device Logic]
       A --> C[Service Coordination]
       A --> D[State Management]
       
       E[Power Management] --> F[Hardware Interface]
       E --> G[Battery Operations]
       E --> H[Sleep Management]
       
       I[Connection Manager] --> J[Network Setup]
       I --> K[Communication Strategy]
       I --> L[Failover Handling]
       
       M[Transfer Service] --> N[Data Exchange]
       M --> O[Command Processing]
       M --> P[File Operations]
       
       Q[Scheduler] --> R[Task Management]
       Q --> S[Periodic Operations]
       Q --> T[Event Handling]
       
       A -.-> E
       A -.-> I
       A -.-> M
       A -.-> Q
       
       style A fill:#ffebee
       style E fill:#e8f5e8
       style I fill:#fff3e0
       style M fill:#e3f2fd
       style Q fill:#f3e5f5

Power Management Strategies
~~~~~~~~~~~~~~~~~~~~~~~~~~

Battery-powered implementations use sophisticated power management strategies:

- **Watchdog Mechanisms**: Supervisor services maintain power through periodic heartbeats
- **Deep Sleep Integration**: Hardware-level sleep modes with autonomous wake-up
- **Task Scheduling**: Intelligent scheduling to minimize active time
- **Communication Optimization**: Batch operations and efficient transmission protocols

Hardware Considerations
~~~~~~~~~~~~~~~~~~~~~~

Successful implementations consider hardware-level optimizations:

- Dedicated power management microcontrollers
- Deep sleep capable components
- Efficient power conversion and regulation
- Hardware watchdog timers
- Low-power communication interfaces

Best Practices
--------------

Design Principles
~~~~~~~~~~~~~~~~

1. **Power-First Design**: Always consider power implications in design decisions
2. **Service Isolation**: Keep services independent for better reliability
3. **Graceful Degradation**: Implement fallback mechanisms for critical failures
4. **Monitoring Integration**: Build comprehensive monitoring from the start
5. **Security by Design**: Implement security measures at every layer

Implementation Guidelines
~~~~~~~~~~~~~~~~~~~~~~~~

1. **Start with Core Services**: Begin with supervisor and power management
2. **Incremental Development**: Add services one at a time, testing each addition
3. **Configuration Management**: Use external configuration for flexibility
4. **Error Handling**: Implement comprehensive error handling and recovery
5. **Testing Strategy**: Test power scenarios and failure modes early

Getting Started
--------------

To get started with your own implementation:

1. **Choose a Reference**: Select the most similar example from the available projects
2. **Review Architecture**: Understand the service architecture and dependencies
3. **Customize Services**: Adapt the services to your specific requirements
4. **Test Power Scenarios**: Validate power management in your target environment
5. **Iterate and Optimize**: Refine based on real-world performance data

.. note::
   For detailed implementation guidance, refer to the :doc:`../implementation/index` section and the :doc:`../blueprints_for_implementation/index` section.

Additional Resources
-------------------

- :doc:`../concepts/index` - Core concepts and architecture
- :doc:`../specifications/index` - Technical specifications
- :doc:`../developer/index` - Developer guides and APIs
- :doc:`../troubleshooting/index` - Common issues and solutions

.. _project-examples-index: