IIenLite

IIenLite is a lightweight, open-source software library designed for real-time data ingestion, processing, and routing on resource-constrained devices and edge environments. It provides a minimal core with a modular plugin architecture, enabling developers to compose data pipelines from small, independent components without requiring a full enterprise runtime. The project emphasizes portability, small binary size, and predictable performance across platforms.

Origin and development: IIenLite was released by Indigo Innovations in 2019 as a compact companion to the IIen data platform. It is maintained by a community of contributors and is available under an open-source license.

Architecture and components: The runtime consists of a core engine, a plugin system, and protocol adapters. Core handles scheduling and backpressure, while adapters enable input/output through MQTT, HTTP, CoAP, or file systems. It supports cross-language bindings (C/C++ core with Python and JavaScript bindings) and configuration through JSON or YAML. Security features include optional TLS and pluggable authentication.

Usage and adoption: IIenLite targets edge devices, IoT gateways, and industrial controllers. It is suitable for situations requiring deterministic latency and low memory footprint. Customers use IIenLite to build lightweight data pipelines, event processing, and rule evaluation at the network edge, with results sent to centralized data platforms.

Development and licensing: The project is hosted on GitHub, with contributions governed by an open-source license (MIT-like). Documentation and examples are maintained in the repository.