This is a MIDI shield which allows Arduino UNO-format boards to receive and send MIDI messages. The shield allows direct wiring of up to 5 piezzo sensors and a keyboard (with buttons and serial resistors) making it ideal for drum projects. The project is based on this open hardware design. Works with Arduino UNO and pin-compatible boards. Features * MIDI-IN, MIDI-OUT and MIDI-THRU connectors * 5 Piezzo sensors for drum implementation * Keyboard for piano implementation * Works with both 3.3V and 5V Arduino-like boards Resources Documents * European Declaration of Conformity * UKCA Declaration of Conformity Hardware * Schematic * Source files for Eagle format * General dimensions Software * Demo example with Pinguino boards for Pinguino IDE * Demo example with OLIMEXINO-328 for Arduino IDE * The official source of the library Package Contents * 1x MIDI Shield https://elecena.pl/product/23772968/olimex-midi-shield-for-arduino 2023-07-12 https://elecena.pl/product/23772968/olimex-midi-shield-for-arduino 2023-12-27 https://elecena.pl/product/23772968/olimex-midi-shield-for-arduino 2024-09-18 https://elecena.pl/product/23772968/olimex-midi-shield-for-arduino 2024-11-29 https://elecena.pl/product/23772968/olimex-midi-shield-for-arduino 2024-11-30 https://elecena.pl/product/23772968/olimex-midi-shield-for-arduino 2025-11-28 https://elecena.pl/product/23772968/olimex-midi-shield-for-arduino 2025-11-29