A network of physical devices embedded with sensors, software, and connectivity capabilities that enable them to collect, exchange, and act on data over the internet without human intervention.

Direct communication between devices using wired or wireless channels without human interaction. Often considered a subset or precursor to IoT, focusing on device-to-device communication for industrial and telemetry applications.

A logical network segmentation that groups devices together regardless of physical location, improving security and network management. In IoT deployments, VLANs isolate IoT devices from other network traffic to enhance security.

A device that acts as a bridge between IoT sensors/devices and the cloud or network infrastructure, often performing protocol translation, data aggregation, and edge processing.

Processing data closer to where it’s generated (at the network edge) rather than in a centralized cloud, reducing latency and bandwidth usage while improving response times for IoT applications.

A lightweight publish-subscribe messaging protocol designed for constrained devices and low-bandwidth networks. Widely used in IoT for efficient communication between sensors and cloud platforms.

A specialized web transfer protocol for use with constrained nodes and networks in IoT. Designed for machine-to-machine applications with low overhead and built-in discovery.

Standard web protocols used by many IoT devices for communication with cloud services, though more resource-intensive than MQTT or CoAP.

An open standard application layer protocol for message-oriented middleware, offering reliable message delivery and sophisticated routing capabilities for IoT systems.

A protocol providing full-duplex communication channels over a single TCP connection, enabling real-time data exchange between IoT devices and servers.

A family of wireless networking protocols providing high-speed local area network connectivity. Common in smart home and commercial IoT applications where power consumption is less critical.

Short-range wireless technology with BLE specifically designed for low power consumption, making it ideal for wearables, beacons, and battery-powered IoT devices.

A low-power, low-data-rate wireless mesh networking standard based on IEEE 802.15.4, commonly used in home automation and industrial monitoring applications.

A wireless communication protocol designed for home automation, operating in sub-GHz frequencies with low power consumption and mesh networking capabilities.

A proprietary spread spectrum modulation technique enabling long-range, low-power wireless communication. Forms the physical layer of LoRaWAN networks.

A Low Power Wide Area Network (LPWAN) protocol built on LoRa technology, designed for battery-powered devices requiring long-range communication with low data rates.

An LPWAN technology using ultra-narrowband communication for long-range, low-power, and low-data-rate IoT applications, operating in unlicensed ISM bands.

A short-range (typically <10cm) wireless technology enabling communication between devices through electromagnetic induction, used in contactless payments and device pairing.

Technology using electromagnetic fields to automatically identify and track tags attached to objects, fundamental to asset tracking and supply chain IoT applications.

4G cellular network technology providing high-speed data communication for mobile devices and IoT applications requiring higher bandwidth.

A Low Power Wide Area (LPWA) cellular technology designed specifically for IoT, offering extended coverage, low power consumption, and support for voice and mobility.

An LPWAN technology operating within LTE spectrum, optimized for indoor coverage, low cost, long battery life, and massive device connectivity for stationary IoT applications.

Fifth-generation cellular technology offering ultra-low latency, massive connectivity, and high bandwidth, enabling advanced IoT applications like autonomous vehicles and industrial automation.

Legacy cellular technologies still used in some IoT deployments, though being phased out globally in favor of LTE-M, NB-IoT, and 5G.

A programmable SIM card permanently embedded in a device, eliminating the need for physical SIM cards and enabling remote carrier provisioning and switching for IoT devices.

The technical standard that enables eSIM functionality, allowing remote SIM provisioning and management of cellular connectivity profiles on devices.

Gateway configuration that defines the network path for cellular data connections, specifying how devices connect to mobile carrier networks and external networks.

A unique 15-digit number identifying cellular devices, used for network authentication and device tracking in IoT deployments.

A unique identifier for SIM cards, consisting of up to 22 digits, used to identify and manage cellular subscriptions for IoT devices.

A transducer that converts electrical signals into radio waves and vice versa, essential for wireless communication in IoT devices. Types include dipole, monopole, patch, and chip antennas.

A measure (in dBi or dBd) of how well an antenna directs radio frequency energy in a particular direction compared to a reference antenna. Higher gain means more focused signal transmission.

A measurement of the power present in a received radio signal, typically expressed in dBm. Used to assess connection quality and optimize device placement in IoT networks.

An LTE-specific measurement representing the average power of resource elements carrying reference signals, providing a more accurate indication of cellular signal strength than RSSI.

A metric in LTE networks indicating signal quality by measuring the ratio of RSRP to RSSI, accounting for both signal strength and interference.

A key metric measuring signal quality by comparing the strength of the desired signal to the combined strength of interference and noise. Higher SINR values indicate better connection quality and data throughput.

The ratio of signal power to noise power, measured in decibels (dB). Higher SNR values indicate clearer signals and better communication quality in wireless systems.

A unit of measurement expressing absolute power levels in relation to one milliwatt, commonly used to measure signal strength in wireless communications.

A specific range of radio frequencies used for wireless communication. IoT devices operate across various bands including sub-GHz (better penetration), 2.4 GHz (widely available), and 5 GHz (higher capacity).

Unlicensed radio frequency bands available internationally for industrial, scientific, and medical purposes. Commonly used by IoT devices (e.g., 2.4 GHz, 5.8 GHz, 868 MHz, 915 MHz).

A compact integrated circuit containing a processor, memory, and input/output peripherals. The “brain” of most IoT devices, executing firmware and managing sensors and connectivity.

An integrated circuit that incorporates multiple components including processor, memory, wireless connectivity, and sometimes sensors on a single chip, reducing size and power consumption.

A device that detects and responds to physical inputs from the environment (temperature, pressure, humidity, motion, light, etc.) and converts them to digital signals for processing.

A component that converts electrical signals into physical action, enabling IoT devices to interact with their environment (e.g., motors, valves, relays, servos).

Programmable pins on a microcontroller that can be configured as inputs or outputs, allowing IoT devices to interface with sensors, actuators, and other peripherals.

A serial communication protocol using two wires (SDA and SCL) to connect multiple peripherals to a microcontroller, commonly used for sensor integration in IoT devices.

A synchronous serial communication protocol using four wires, offering faster data transfer than I2C for connecting microcontrollers to sensors, displays, and memory chips.

A hardware communication protocol for serial data transmission between devices, commonly used for debugging and communication in IoT development.

A circuit that converts analog signals from sensors (like temperature or light sensors) into digital values that microcontrollers can process.

A circuit that converts digital signals into analog outputs, used when IoT devices need to control analog actuators or generate analog signals.

An integrated circuit that manages power distribution, battery charging, and voltage regulation in IoT devices, critical for battery-powered applications.

Cryptographic protocols providing secure communication over networks, essential for protecting data transmitted between IoT devices and cloud services.

A digital certificate standard used for authentication and encryption in IoT systems, enabling secure device identity verification and encrypted communications.

A framework for managing digital certificates and public-key encryption, used to authenticate devices and secure communications in IoT ecosystems.

The wireless delivery of firmware, software, or configuration updates to IoT devices, enabling remote maintenance and security patching without physical access.

A security feature ensuring that IoT devices only run authenticated firmware during startup, preventing the execution of malicious or unauthorized code.

A dedicated cryptographic processor securing digital keys and performing encryption operations, providing tamper-resistant storage for sensitive IoT security credentials.

A suite of cloud services and tools for connecting, managing, and analyzing data from IoT devices at scale. Examples include AWS IoT Core, Azure IoT Hub, and Google Cloud IoT.

A virtual representation of a physical IoT device stored in the cloud, maintaining device state, metadata, and configuration even when the device is offline.

The process of registering and configuring IoT devices with cloud services, establishing secure connections, and associating devices with user accounts or organizations.

A database optimized for storing and querying timestamped data from IoT sensors, enabling efficient analysis of sensor readings and trends over time.

A set of protocols and tools allowing different software applications to communicate, enabling IoT devices and cloud services to exchange data and commands.

An HTTP callback mechanism that sends real-time data from IoT platforms to external applications when specific events occur, enabling automated integrations.

The automated collection and transmission of data from remote IoT devices to monitoring systems for analysis and decision-making.

The process of collecting and importing data from IoT devices into storage and processing systems for analysis and action.

Real-time analysis of data as it flows from IoT devices, enabling immediate insights and responses without storing data first.

Analyzing large volumes of collected IoT data at scheduled intervals, useful for historical analysis and trend identification.

Using IoT sensor data and analytics to predict equipment failures before they occur, enabling proactive maintenance and reducing downtime.

Low-power states where IoT devices minimize power consumption by shutting down non-essential components, extending battery life significantly.

The ratio of time an IoT device is active versus sleeping, expressed as a percentage. Lower duty cycles conserve power in battery-operated devices.

The process of capturing ambient energy (solar, thermal, vibration, RF) to power IoT devices, eliminating or reducing battery replacement needs.

Lithium-ion and lithium-polymer rechargeable batteries commonly used in IoT devices due to their high energy density and relatively light weight.

A unit measuring battery capacity, indicating how much current a battery can supply over time. Higher mAh ratings mean longer device runtime.

Software permanently programmed into IoT device hardware, providing low-level control and device-specific functionality.

A collection of software tools, libraries, and documentation enabling developers to create applications and firmware for specific IoT platforms or devices.

An architectural style for web services using HTTP methods, commonly used by IoT devices and platforms for data exchange and device control.

A lightweight data interchange format commonly used for transmitting data between IoT devices and cloud services due to its simplicity and readability.

The latest version of Internet Protocol providing a vastly expanded address space, essential for accommodating billions of IoT devices on the internet.

An adaptation layer allowing IPv6 packets to be transmitted over IEEE 802.15.4 networks, enabling internet connectivity for resource-constrained IoT devices.

An IPv6-based networking protocol designed specifically for IoT devices, providing low-power mesh networking with built-in security for smart home applications.

An open-source connectivity standard for smart home devices, enabling interoperability across different manufacturers and ecosystems.