====== Teensy ======
{{:materiel:teensy:teensy.jpg|}}
<blockquote>The Teensy is a complete USB-based microcontroller development system, in a very small footprint, capable of implementing many types of projects. All programming is done via the USB port. No special programmer is needed, only a standard "Mini-B" USB cable and a PC or Macintosh with a USB port.(http://www.pjrc.com/teensy/)</blockquote> 


===== Installation =====
  * Téléchargement : http://www.pjrc.com/teensy/td_download.html
  * http://www.pjrc.com/teensy/teensyduino.html
  * http://www.pjrc.com/teensy/first_use.html


===== Teensy Vs Arduino =====
  * Tests de latence : http://neophob.com/2011/04/serial-latency-teensy-vs-arduino/

===== Pins =====
  * http://www.pjrc.com/teensy/pinout.html

{{:materiel:teensy:wiring_pinout2h.png|}}


{{:materiel:teensy:teensy31_front_pinout.png|}}

===== Teensy et Raspberry Pi =====
  * http://www.teensypi.com/teensypi-board-version-5/
{{:materiel:teensy:teensypi-v5.jpg|}}



===== Ethernet =====
  * http://pjrc.com/teensy/td_libs_Ethernet.html
  * http://www.tweaking4all.com/hardware/arduino/arduino-enc28j60-ethernet/
  * https://bigdanzblog.wordpress.com/2015/01/01/wiring-teensy-3-1-and-enc28j60-ethernet-module-together/

{{:materiel:teensy:teensy-ethernet.png|}}

{{:materiel:teensy:teensy-enc28j60-wiring.png|}}


===== Touch > Midi =====
Envoie de valeurs avec touchRead() en MIDI.

<code cpp>
// adpapted from http://reso-nance.org/wiki/projets/teensymiditouchcontroller/

/* TOUCHPINS */
int const nbTouch = 6; // number of pins to use as touchpins, sending note values
int touch[nbTouch];
int touchOn[nbTouch];
int touchPins[] = {15,16,17,18,19,22,};
int touchPitch[] = {36,37,38,39,40,41}; // MIDI pitches
int touchThreshold = 3200; 

const int channel = 1;

void setup() { 
   Serial.begin(38400); 
 } 

void loop() {
  
  for (int i = 0; i < nbTouch; i++) {
    
    touch[i] = touchRead(touchPins[i]);
    //Serial.print();
    //Serial.print("\t");
    
    if (touch[i] > touchThreshold && touchOn[i] == 0) {
      usbMIDI.sendNoteOn(touchPitch[i], map(touch[i],1300, 6000, 0, 127), channel);
      touchOn[i] = 1;
    }
    if (touch[i] < touchThreshold && touchOn[i] == 1) {
      usbMIDI.sendNoteOff(touchPitch[i], 0, channel);
      touchOn[i] = 0;
    }
  }
  
 //Serial.println();
 delay(10);
}
</code>

{{tag>teensy}}