m01m00

m01m00 is a compact data-encoding scheme designed for low-bandwidth, low-power communications in embedded systems. It defines a fixed frame format intended for short messages in sensor networks. Each 6-byte frame consists of a 1-byte header, a 4-byte payload, and a 1-byte CRC-8. The header encodes a 3-bit version and a 5-bit message type, enabling basic versioning and message classification while keeping the frame small and easy to parse on microcontrollers.

The payload is treated by the higher-layer protocol according to the message type. With 4 bytes available per frame, m01m00 is suited to transmitting small telemetry values, status flags, or command parameters. If more data is needed, the system must assemble longer messages from multiple frames or call on a higher-layer segmentation mechanism. The absence of fragmentation logic in the core specification places the responsibility for larger transfers on the application layer.

Error detection in m01m00 is provided by the 1-byte CRC-8 in each frame, typically using a simple polynomial such as 0x07. This enables detection of single-frame transmission errors and supports basic data integrity checks during reception.

History and usage of m01m00 trace to academic and hobbyist embedded-systems projects in the 2010s, where the goal was to reduce protocol overhead and simplify implementation on resource-constrained devices. It is not a widely standardized or industry-wide protocol, and adoption remains limited to specific research or educational contexts. Security is not defined in the core specification; encryption and authentication are typically implemented at higher layers if required.

See also data framing, CRC-8, low-power wireless protocols, and embedded system communications.