Easy IoT GuideEasy IoT Guide
Device Layer
Devices interacting with the physical world — sensors, actuators, and embedded systems that capture and respond to real-world data.
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Topics in This Layer
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Sensors
Temperature, humidity, pressure, motion, and optical sensors that digitize the physical world.
Microcontrollers
Low-power CPUs like ESP32 and Arduino that run firmware and control hardware peripherals.
Connectivity Modules
WiFi, Bluetooth, LoRa, Zigbee, and cellular radios that connect devices to networks.
Power Systems
Battery management, energy harvesting, and low-power design for field-deployed IoT nodes.
Embedded Operating Systems
RTOS and bare-metal environments — FreeRTOS, Zephyr, and MicroPython explained.