The M5Stack MIDI Unit is a channel control and audio synthesis unit based on the MIDI interface. The switch on the front of the product allows you to set the left/right MIDI port's bypass mode. In Bypass mode, the left and right ports are directly connected; in Separate mode, the left and right ports are separated. The left and right MIDI ports support both standard 5-pin DIN and 3.5mm headphone interfaces. The TXD pin on the Grove port is connected to the left MIDI port signal, and the RXD pin on the Grove port is connected to the internal audio synthesizer's SAM2695 digital input. This allows an external M5 host to monitor or output MIDI signals through the Grove interface while simultaneously outputting synthesized audio. The audio signal is output through a 3.5mm headphone jack. This product is suitable for electronic music creation and production, live music control, and interactive music installations. Features * SAM2695 audio synthesizer chip * UART communication * Standard MIDI 1.0 protocol * Standard 3.5mm audio jack and DIN socket * Optocoupler isolation * Bypass/Separate mode switch Specifications MIDI Chip SAM2695 Communication Protocol Standard MIDI 1.0 protocol (16 channels） Polyphony 64-voice (without effects) / 38-voice (with effects) Communication Interface UART (Baud rate: 31,520 bps) Audio Output Interface 3 x 3.5mm stereo headphone jack & 2x DIN 5-pin socket Standby Current DC5V@18.59mA Operating Temperature 0-40°C Product Size 48 x 40 x 25mm Package Size 136 x 92 x 26mm Product Weight 28.2g Package Weight 33.4g Resources * Product Wiki Package Contents * 1x MIDI Unit * 1x HY2.0 4-pin Grove Cable (20cm) https://elecena.pl/product/26952950/midi-unit-with-din-connector-sam2695 2024-09-24 https://elecena.pl/product/26952950/midi-unit-with-din-connector-sam2695 2024-11-29 https://elecena.pl/product/26952950/midi-unit-with-din-connector-sam2695 2024-11-30 https://elecena.pl/product/26952950/midi-unit-with-din-connector-sam2695 2025-04-29 https://elecena.pl/product/26952950/midi-unit-with-din-connector-sam2695 2025-08-06 https://elecena.pl/product/26952950/midi-unit-with-din-connector-sam2695 2025-11-28 https://elecena.pl/product/26952950/midi-unit-with-din-connector-sam2695 2025-11-29