Content for Firmata

Firmata

Firmata is a protocol for communicating with microcontrollers from software on a computer (or smartphone/tablet, etc). The protocol can be implemented in firmware on any microcontroller architecture as well as software on any computer software package (see list of client libraries below). Firmata is based on the midi message format in that commands bytes are 8 bits and data bytes are 7 bits. For example the midi Channel Pressure (Command: 0xD0) message is 2 bytes long, in Firmata the Command 0xD0 is used to enable reporting for a digital port (collection of 8 pins). Both the midi and Firmata versions are 2 bytes long, but the meaning is obviously different. In Firmata, the number of bytes in a message must conform with the corresponding midi message. Midi System Exclusive (Sysex) messages however, can be any length and are therefore used most prominently throughout the Firmata protocol.

Description Source

See alsoMusical Instrument Digital Interface (MIDI)

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