The circuit receives MIDI data from a panel‑mounted MIDI IN jack, isolates it through a 6N138 optocoupler, conditions the signal using a 74HC14 Schmitt inverter, and distributes four identical copies to panel‑mounted THRU jacks. A 7805 linear regulator provides a stable 5 V supply for all logic components. The MatrixPortal, Arduino, Raspberry PI, or other logic board receives the same cleaned MIDI signal for lyric display or other processing.
Status
Not started
Build logs and tech
Project type
Image
Integrated circuit fails