usb host teensy 4.1

[benwadub]

hi, does the library permit to use the USB Host with the teensy 4.1?
i m working on the code while I wait for my teensy to come,
will I need to use midi pipes to route midi from host to my others interfaces?

#include <Control_Surface.h>
#include <Encoder.h> // Include the Encoder library.
//#include <name.c>
//SerialMIDI_Interface<decltype(serial)> midi = {serial, MIDI_BAUD};// démarre une interface midi serial au midi baud rate par defaut
USBMIDI_Interface usbmidi;// enlever les / en debut de ligne pour activer l'interface usb, penser à désactiver l'interface série(din)
//HardwareSerialMIDI_Interface midiser = Serial1;
#include <USBHost_t36.h>
USBHost myusb;
USBHub hub1(myusb);
USBHub hub2(myusb);
MIDIDevice midi1(myusb);
CD74HC4067 mux1 = {
  14,       // numéro de broche de l'arduino
  {2, 3, 4, 5} // numéro de pins de l'arduino sur lesquels sont branchés tous les multiplexeurs apellés mux S0, S1, S2
};

CD74HC4067 mux2 = {
  15,              
  {2, 3, 4, 5}, 
};

CD74HC4067 mux3 = {
  16,       
  {2, 3, 4, 5} 
};
/*CD74HC4067 mux1 = {
  17,       // numéro de broche de l'arduino
  {2, 3, 4, 5} // numéro de pins de l'arduino sur lesquels sont branchés tous les multiplexeurs apellés mux S0, S1, S2
};

CD74HC4067 mux2 = {
  18,              
  {2, 3, 4, 5}, 
};

CD74HC4067 mux3 = {
  19,       
  {2, 3, 4, 5} 
};
*/
CCPotentiometer fxparameter [] = {
  {mux1.pin(0), {1, CHANNEL_16}},//delay time
  {mux1.pin(1), {2, CHANNEL_16}},//pingpong
  {mux1.pin(2), {3, CHANNEL_16}},//stereo width
  {mux1.pin(3), {4, CHANNEL_16}},//feedback
  {mux1.pin(4), {5, CHANNEL_16}},//hph
  {mux1.pin(5), {6, CHANNEL_16}},//lpf
  {mux1.pin(6), {7, CHANNEL_16}},//reverb send
  {mux1.pin(7), {8, CHANNEL_16}},//mix volume
};
  CCButtonLatched bouton1 [] = {
  {mux1.pin(15), {9, CHANNEL_16}},//pre delay
  {mux1.pin(14), {10, CHANNEL_16}},//reverb decay
  {mux1.pin(13), {11, CHANNEL_16}},//reverb filter
  {mux1.pin(12), {12, CHANNEL_16}},//shelving gain
  {mux1.pin(11), {13, CHANNEL_16}},//hpf
  {mux1.pin(10), {14, CHANNEL_16}},//lpf
  {mux1.pin(9), {15, CHANNEL_16}},//mux volume
  {mux1.pin(8), {16, CHANNEL_16}},//pattern volume
};
CCPotentiometer fxparameter2 [] = {
  {mux2.pin(0), {17, CHANNEL_16}},//delay time
  {mux2.pin(1), {18, CHANNEL_16}},//pingpong
  {mux2.pin(2), {19, CHANNEL_16}},//stereo width
  {mux2.pin(3), {20, CHANNEL_16}},//feedback
  {mux2.pin(4), {21, CHANNEL_16}},//hph
  {mux2.pin(5), {22, CHANNEL_16}},//lpf
  {mux2.pin(6), {23, CHANNEL_16}},//reverb send
  {mux2.pin(7), {24, CHANNEL_16}},//mix volume
};
  CCButtonLatched bouton2 [] = {
  {mux2.pin(15), {25, CHANNEL_16}},//pre delay
  {mux2.pin(14), {26, CHANNEL_16}},//reverb decay
  {mux2.pin(13), {27, CHANNEL_16}},//reverb filter
  {mux2.pin(12), {28, CHANNEL_16}},//shelving gain
  {mux2.pin(11), {29, CHANNEL_16}},//hpf
  {mux2.pin(10), {30, CHANNEL_16}},//lpf
  {mux2.pin(9), {31, CHANNEL_16}},//mux volume
  {mux2.pin(8), {32, CHANNEL_16}},//pattern volume
};
CCPotentiometer fxparameter3 [] = {
  {mux3.pin(0), {33, CHANNEL_16}},//delay time
  {mux3.pin(1), {34, CHANNEL_16}},//pingpong
  {mux3.pin(2), {35, CHANNEL_16}},//stereo width
  {mux3.pin(3), {36, CHANNEL_16}},//feedback
  {mux3.pin(4), {37, CHANNEL_16}},//hph
  {mux3.pin(5), {38, CHANNEL_16}},//lpf
  {mux3.pin(6), {39, CHANNEL_16}},//reverb send
  {mux3.pin(7), {40, CHANNEL_16}},//mix volume
};
  CCButtonLatched bouton3 [] = {
  {mux3.pin(15), {41, CHANNEL_16}},//pre delay
  {mux3.pin(14), {42, CHANNEL_16}},//reverb decay
  {mux3.pin(13), {43, CHANNEL_16}},//reverb filter
  {mux3.pin(12), {44, CHANNEL_16}},//shelving gain
  {mux3.pin(11), {45, CHANNEL_16}},//hpf
  {mux3.pin(10), {46, CHANNEL_16}},//lpf
  {mux3.pin(9), {47, CHANNEL_16}},//mux volume
  {mux3.pin(8), {48, CHANNEL_16}},//pattern volume
};
void setup() {
  Control_Surface.begin(); // initialise la library surface de control

}

void loop() {
  Control_Surface.loop(); // Update the Control Surface

}```
for the moment I wrote it like this

[tttapa]

At this moment that's not yet possible, but I have a Teensy 4.1 in the mail and I plan to add USB Host MIDI support in late January/early February.

[benwadub]

I just saw you implemented the USB Host, thanks! do I need to update my control surface library to use it please?
thanks again for your job!

[tttapa]

You'll have to upgrade to the latest version of the new-input branch, and install my fork of the USBHost_t36 library: https://github.com/tttapa/USBHost_t36

You can use this example to get started: https://tttapa.github.io/Control-Surface-doc/new-input/Doxygen/d9/da3/USBHostMIDI_Interface-Passthrough_8ino-example.html

[emalihin]

This is awesome, I've just built a USB MIDI to Serial MIDI converted with it on Teensy 4! What's more awesome it works with the previous build of 4x4 matrix device built with the same library :)

...
  // Serial MIDI
  HardwareSerialMIDI_Interface serialmidi = {Serial2, MIDI_BAUD};
  
  // USB Host MIDI (second USB port)
  USBHostMIDI_Interface hostmidi{usb};
...
  hostmidi | p | serialmidi; // Connect the interfaces using a MIDI pipe
  usb.begin();               // Initialize the USB Host
  hostmidi.begin();          // Initialize the MIDI interfaces
  serialmidi.begin();

I will be testing this further with additional hardware (USB controllers, MIDI hardware synths) next week.

Any plans for this to make it to master?

[dpsproservices]

4.0 or 4.1?

[benwadub]

Thanks so I ll have to use the pjrc library to use the host. I ll check for the update the next month to come!