Internet of Things (IoT)
IoT is the network of physical devices embedded with sensors, software, and connectivity to exchange data over the internet.
Examples of IoT Devices
- Smart Home: Smart bulbs, AC, TV, Door locks
- Wearables: Smartwatch, Fitness band
- Industrial IoT: Smart factory machines
- Healthcare: Remote patient monitoring
- Agriculture: Smart irrigation systems
- Smart City: Traffic management, street lights
IoT Architecture — 4 Layers
- Perception Layer: Sensors and actuators (collects data)
- Network Layer: Transmits data (Wi-Fi, Bluetooth, Zigbee)
- Processing Layer: Cloud/data processing
- Application Layer: End-user services