I already have made my controller with usbMidi and 5Din midi, but I would like to configure my faders and buttons with processing for example
For that I think that I should use an option MIDI + Serial in "teensyduino" but It doesn't exists
I would have
- usbMidi connexion
- Serial connexion
in parallel
Maybe you're confusing USB virtual serial with physical hardware serial?
You need hardware serial for 5-pin DIN MIDI. Virtual serial sends serial data to your PC over USB, not to a pin you can connect to a MIDI DIN connector.
Teensy-LC has 3 hardware serial ports. They are always available, regardless of what you select in Tools > USB Type.
You could select MIDI in Tools > USB Type, and send 4 simultaneous MIDI streams... one to your PC and 3 more to the 3 hardware serial ports, to 3 separate DIN connectors! The key point to remember is those hardware serial ports are called Serial1, Serial2, and Serial3. You have to use the number 1, 2 or 3 on the end.
While in USB MIDI, there is also a hidden HID-based emulation for "Serial". So you can use Serial.print() to send text to the Arduino Serial Monitor, while also using USB MIDI and while also using the 3 hardware serial ports!
Not bad for a under-$12 low cost board, is it?!