MessageFrame: C++17 Library Enables Schema-Free Device Telemetry Serialization

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A developer has released MessageFrame, a lightweight C++17 library designed to simplify structured command and telemetry messaging between PCs and embedded devices such as SDR receivers and sensors. The library allows parameters to be addressed dynamically using device and parameter name strings, eliminating the need for schema files or code generation steps required by tools like Protobuf or FlatBuffers. Under the hood, it uses MessagePack as its binary wire format, keeping payloads compact enough for real-time use while remaining decodable by any MessagePack-compatible parser. Parameters are stored in a flat vector for up to 128 entries to optimize CPU cache performance, automatically switching to a hash map beyond that threshold. MessageFrame does not include a transport layer and is not intended as a full replacement for Protobuf, but rather as a flexible payload-structuring solution for systems with dynamic or frequently changing device configurations.

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