Glossary

Plain-English definitions for the field.

Reference terms WillowSoft uses across embedded hardware, firmware, LoRaWAN, Modbus and industrial IoT projects — written for engineers and decision-makers without the marketing layer.

Connectivity

Wireless & network protocols.

LoRaWAN

LoRaWAN (Long Range Wide Area Network) is a low-power wide-area network protocol designed for battery-operated wireless devices in regional, national or global networks. It runs on unlicensed sub-GHz radio bands (US915, EU868, AS923, AU915, KR920, IN865, RU864) and reaches up to ~15 km in rural environments with multi-year battery life.

WillowSoft uses it in: WillowSoft designs and manufactures LoRaWAN end-nodes (WillowBee, WillowAir, WillowMod and others) and complete gateway-to-dashboard systems.

Modbus RTU

Modbus RTU is a serial communication protocol widely used in industrial automation to connect PLCs, energy meters, drives, sensors and other field devices. It runs over RS-485 and uses a master/slave register model.

WillowSoft uses it in: WillowSoft's WillowMod bridges Modbus RTU devices into LoRaWAN networks, allowing legacy industrial equipment to be read remotely without rewiring.

LoRaWAN device classes (A / B / C)

Class A wakes up to transmit and immediately listens for downlinks — most energy-efficient, used for battery sensors. Class B listens at scheduled time slots. Class C listens continuously — for latency-sensitive applications with available power.

LoRaWAN Gateway

Multi-channel radio receiver bridging end-nodes and the LoRaWAN network server via IP backhaul (Ethernet, Wi-Fi or cellular). A single gateway can cover several kilometres line-of-sight and serve thousands of end-nodes.

Devices

Hardware & embedded terms.

MCU (Microcontroller Unit)

A single integrated circuit combining CPU, memory and peripherals — the brain of an embedded device. WillowSoft commonly uses STM32WL Cortex-M4, which integrates the LoRa radio on-chip and simplifies both hardware design and certification.

Embedded System

A purpose-built computing device combining MCU, firmware and hardware peripherals to perform a specific function. Examples: a LoRaWAN sensor node, a smart meter, an industrial controller. WillowSoft designs these from PCB through firmware to production-ready field deployment.

PCB

Printed Circuit Board — the structural and electrical substrate that connects electronic components. WillowSoft PCB design considers RF performance, power efficiency, manufacturability and enclosure constraints from the first schematic.

Sensor Node

An end-device that measures a physical parameter (temperature, pressure, motion, level, gas concentration) and transmits the reading wirelessly. WillowSoft's product portfolio is built around battery-powered LoRaWAN sensor nodes designed for years of unattended operation.

IP67 Rating

Ingress Protection rating: dust-tight (6) and able to withstand immersion in water up to 1 metre for 30 minutes (7). WillowSoft outdoor sensors (WillowSonic, WillowGPS, WillowPre, WillowTilt, WillowAne) are IP67-rated.

RF (Radio Frequency)

The electromagnetic frequencies used for wireless communication. LoRaWAN uses sub-GHz RF bands chosen per region for long-range, low-power links. WillowSoft engineering includes RF design, antenna matching, regulatory compliance and field RF tuning.

Software & Operations

Firmware, edge and cloud terms.

OTA Update

Over-the-Air firmware update — delivering software changes to deployed devices over the wireless link without physical access. WillowSoft firmware projects ship with OTA support so devices can be patched for bug fixes, security or new features without truck rolls.

Edge Computing

Processing data on the device or gateway rather than sending all raw measurements to the cloud. Lowers bandwidth costs, enables faster local alerts and improves privacy. Increasingly part of WillowSoft firmware and gateway architecture.

Telemetry

Automated, remote collection and transmission of sensor measurements for monitoring, alerting and analysis. The complete WillowSoft telemetry pipeline: sensor → LoRaWAN → gateway → backend API → PostgreSQL → dashboard → mobile alerts.

Digital Twin

A virtual representation of a physical asset, process or facility kept in sync with the real world via telemetry. WillowSoft VR and simulation services support digital twin visualization, operator training and pre-deployment scenario testing.

Industrial IoT (IIoT)

Networks of sensors, controllers, gateways and software collecting operational telemetry from manufacturing, energy, utility and field environments. IIoT prioritises reliability, multi-year battery life, harsh-environment ratings and integration with industrial protocols. WillowSoft delivers IIoT systems end-to-end.

Missing a term?

We'd rather explain it than assume you know it.

If your project introduces specific protocols, certifications or industrial concepts not covered here, WillowSoft engineering is happy to walk through them in the discovery call.

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