Hi i made a laucnhpad with https://tr.aliexpress.com/item/32959902921.html this and use this code but hairless midi is not working with this error: ''FTDI drivers don't seem to be installed. Not attempting any FTDI latency tricks.'' and in this site MIDI over USB · tttapa/MIDI_controller Wiki · GitHub says : Just instantiate a HairlessMIDI_Interface at the top of your sketch. and when i add this HairlessMIDI_Interface' does not name a type this error shows up can anyone help ?
LaunchpadMIDI.ino (10.1 KB)
Hairless is not something you put in your Arduino, it is put in your laptop to convert serial input from the Arduino into what the laptop sees as a USB MIDI device.
That Wiki page is for the MIDI Controller library, which has now replaced by the Control Surface library. To use the HairlessMIDI_Interface, you have to include and use that library.
You're not using any MIDI libraries*, so some of the information in the Wiki does not apply. Simply starting the Serial interface with a baud rate of 115200 should work with Hairless in that case.
(*) You've included the main header file of the FortySevenEffects MIDI library, but you're not using it.
Pieter