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--- projets:malinette-brutbox:brutbox-firmware-old:accueil [2015/06/11 17:04]
resonance créée
+++ — (Version actuelle)
@@ Ligne 1: / Ligne 1: @@
-=== 6 capteurs ===
-  * Fichier : {{:projets:malinette-brutbox:teensy_brutbox_x6.ino|}}
-++++ teensy_brutbox_x6.ino |
-<code cpp>
-// the MIDI channel number to send messages
-const int channel = 1;
-// the MIDI continuous controller for each analog input
-const int controllerA0 = 10; // 10 = pan position
-const int controllerA1 = 11; // 11 = volume/expression
-const int controllerA2 = 12; // 91 = reverb level
-const int controllerA3 = 13; // 93 = chorus level
-const int controllerA4 = 14; // 93 = chorus level
-const int controllerA5 = 15; // 93 = chorus level
-void setup() {
-}
-// store previously sent values, to detect changes
-int previousA0 = -1;
-int previousA1 = -1;
-int previousA2 = -1;
-int previousA3 = -1;
-int previousA4 = -1;
-int previousA5 = -1;
-elapsedMillis msec = 0;
-void loop() {
-  // only check the analog inputs 50 times per second,
-  // to prevent a flood of MIDI messages
-  if (msec >= 50) {
-    msec = 0;
-    int n0 = analogRead(A0) / 8;
-    int n1 = analogRead(A1) / 8;
-    int n2 = analogRead(A2) / 8;
-    int n3 = analogRead(A3) / 8;
-    int n4 = analogRead(A4) / 8;
-    int n5 = analogRead(A5) / 8;
-    // only transmit MIDI messages if analog input changed
-    if (n0 != previousA0) {
-      usbMIDI.sendControlChange(controllerA0, n0, channel);
-      previousA0 = n0;
-    }
-    if (n1 != previousA1) {
-      usbMIDI.sendControlChange(controllerA1, n1, channel);
-      previousA1 = n1;
-    }
-    if (n2 != previousA2) {
-      usbMIDI.sendControlChange(controllerA2, n2, channel);
-      previousA2 = n2;
-    }
-    if (n3 != previousA3) {
-      usbMIDI.sendControlChange(controllerA3, n3, channel);
-      previousA3 = n3;
-    }
-    if (n4 != previousA4) {
-      usbMIDI.sendControlChange(controllerA4, n4, channel);
-      previousA4 = n4;
-    }
-    if (n5 != previousA5) {
-      usbMIDI.sendControlChange(controllerA5, n5, channel);
-      previousA5 = n5;
-    }
-  }
-  // MIDI Controllers should discard incoming MIDI messages.
-  // http://forum.pjrc.com/threads/24179-Teensy-3-Ableton-Analog-CC-causes-midi-crash
-  while (usbMIDI.read()) {
-    // ignore incoming messages
-  }
-}
-</code>
-++++
-=== Avec Encoder ===
-  * Ajouter la bibliothèque : http://www.pjrc.com/teensy/arduino_libraries/Encoder.zip ([[https://www.pjrc.com/teensy/td_libs_Encoder.html|source]])
-{{:projets:malinette-brutbox:rotary_encoder_arduino_hookup.png?200|}}
-=== Avec capacitif MPR121 ===
-  * Module MPR121 : https://www.adafruit.com/products/1982. Alimention possible en 5V ou 3.3V
-  * Ajouter la bibliothèque : https://github.com/adafruit/Adafruit_MPR121_Library ([[https://learn.adafruit.com/adafruit-mpr121-12-key-capacitive-touch-sensor-breakout-tutorial/wiring|source]])
-{{:projets:malinette-brutbox:mpr121.png?200|}}
-=== Teensy for BrutBox  ===
-  * Fichiers : {{:projets:malinette-brutbox:pd-teensy-brutbox.zip|}}
-  * Midi : https://www.pjrc.com/teensy/td_midi.html et https://www.pjrc.com/teensy/td_libs_MIDI.html
-**Avec Pure Data** :
-{{:projets:malinette-brutbox:pd-brutbox.png|}}
-**Avec Arduino** :
-++++ teensy_brutbox_2.ino |
-<code cpp>
-// TEENSY 2 - BRUTBOX
-// Control inputs (sensors) with MIDI messages
-// 08/06/2015 - http://reso-nance.org
-#include <Wire.h>
-#include "Adafruit_MPR121.h"
-#include <Encoder.h>
-// Capacitive apacitive MPR121
-// Connection Teensy2
-// USB wiring : d+ : SDA, d- : SCL, SCL = DO, SDA = D1
-Adafruit_MPR121 cap = Adafruit_MPR121();
-const int touchNb = 12; // number of touch inputs
-const int touchThreshold = 60;
-int touchStateCtl[] = {40, 41, 42} ; // touch on/off
-int touchState[touchNb]; // state : on/off
-int currentTouchValues[touchNb];
-int lastTouchValues[touchNb];
-int touchCtl[] = {60,61,62,63,64,65,66,67,68,69,70,71}; // note in
-int touchOn = 0;
-// Analog setup
-int anaPins[] = {22,11,12,13,14,15,16,17,18,19,20,21}; // analog pins
-const int anaNb = 12; // number of inputs
-int anaCtl[] = {11,10,9,8,7,6,5,4,3,2,1,0}; // controller in
-int anaStateCtl[] = {20, 21} ; // sensor on (20), sensor off (21)
-int anaState[anaNb]; // state : on/off
-int anaValues[anaNb]; // current analog values
-int anaLastValues[anaNb]; // previous analog values
-// Encoder setup
-Encoder encoderSensor (7, 8);
-long encoderOldPosition  = -999;
-long encoderNewPosition;
-int encoderStateCtl = 13; // receive ctlout 13
-int encoderOn = 0;
-const int channel = 1;
-// Sampling rate
-const long interval = 30;
-unsigned long currentMillis;
-unsigned long previousMillis = 0;
-void setup() {
-  // Midi receive : on/off sensors
-  usbMIDI.setHandleControlChange(OnControlChange);
-}
-void loop() {
-  currentMillis = millis();
-  if(currentMillis - previousMillis >= interval) {
-      previousMillis = currentMillis;
-      // Analog sensors loop
-      for (int i = 0; i < anaNb; i++) {
-          if(anaState[i] == 1)  { // check first if the sensor is on
-              anaValues[i] = (int) analogRead(anaPins[i])  / 8 ;
-              Serial.println(anaValues[i]);
-              if (anaValues[i] != anaLastValues[i]) {
-                  usbMIDI.sendControlChange(anaCtl[i], anaValues[i], channel);
-                  anaLastValues[i] = anaValues[i];
-	      }
-          }
-       }
-      // Capacitive loop
-      if(touchOn == 1){
-      for (uint8_t i=0; i < touchNb; i++) {
-         if(touchState[i] == 1)  { // check first if the sensor is on
-          currentTouchValues[i] = cap.filteredData(i);
-          if ((currentTouchValues[i] - lastTouchValues[i]) < -touchThreshold) {
-            usbMIDI.sendNoteOn(touchCtl[i], 127, channel);
-          }
-          if ((currentTouchValues[i] - lastTouchValues[i]) > touchThreshold) {
-            usbMIDI.sendNoteOn(touchCtl[i], 0, channel);
-          }
-          lastTouchValues[i] = currentTouchValues[i];
-        }
-      }
-      }
-     // Encoder
-     if (encoderOn == 1) {
-     encoderNewPosition = encoderSensor.read();
-     if (encoderNewPosition != encoderOldPosition) {
-      encoderOldPosition = encoderNewPosition;
-      usbMIDI.sendControlChange(12, encoderNewPosition, channel);
-      }
-     }
-  }
-  // Discard incoming MIDI messages.
-  while (usbMIDI.read()) {}
-}
-// Receive Midi Control Change
-void OnControlChange(byte channel, byte control, byte value) {
-   // Analog sensors on/off
-   if (control == anaStateCtl[0]) {anaState[-value+(anaNb-1)] = 0;}
-   else if (control == anaStateCtl[1]) {anaState[-value+(anaNb-1)] = 1;}
-   else if (control == touchStateCtl[0]) {touchState[value] = 0;}
-   else if (control == touchStateCtl[1]) {touchState[value] = 1;}
-   else if (control == touchStateCtl[2]) {
-     touchOn = value;
-     if (touchOn == 1) {
-       cap.begin(0x5A);
-       for (uint8_t i=0; i<4; i++) {lastTouchValues[i] = cap.filteredData(i); }
-     }
-   }
-   else if (control == encoderStateCtl) {encoderOn = value;}
-}
-</code>
-++++

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