Ideally I’d support both USB MIDI and serial MIDI, but serial MIDI would be fine for a “first attempt”.I wanted to be able to select one of the patches and have it sent out over MIDI directly from the corresponding.I wanted the display to give me a list of patches and give me basic navigation up and down the list.I wanted to be able to store “.syx” files on the built-in disk with each file being a single patch.In terms of code, these were my main thoughts: In terms of other connections, micro USB is required for power. I’m using my “reversible” MIDI OUT module from here in the above photo. That could be as simple as a MIDI socket and two resistors ( as described here) or an off-the-shelf ( 3.3V compatible) module or a home made unit. There is a strong possibility that any Pico display would work if you included the right modules and provided the correct pin configuration.Ī serial (5-pin DIN) MIDI OUT interface is also required. I’m using a Pimoroni Pico display ( details here) and a dual expander ( details here). Raspberry Pi Pico compatible 5-pin serial MIDI OUT.Īs this is using “off the shelf” components, there is no circuit diagram as such.Pimoroni Pico Display (or another ST7789 display and some buttons).If you are new to microcontrollers, see the Getting Started pages.
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