Code Arduino

A tester (source) :

http://inotool.org/ pour téléverser les programmes sur des Arduinos

#!/bin/bash
for arduino in /dev/ttyACM* ;
do
ino upload -m micro -p $arduino
sleep 1
done

Arduino Chimères OSC

Fichiers : chimeresorchestra-arduino-201702.zip

Réception des données via le protocole OSC.

chimeres-osc

/*
 * Chimères Orchestra
 * =================
 * Robots drummers in public space by Reson-nance Numérique
 * 
 * Website:
 * http://reso-nance.org/chimeres-orchestra 
 *
 * Setup: 
 * Ethernet (OSC) > Ethernet Shield > Arduino MEGA > Power Shield MOSFETS > DC Motors
 * 
 * Wiring:
 * Ethernet Shield  Arduino MEGA  Power Shield
 * ===============  ============  ============
 * 10               10 (53)     
 * 11               11 (51)
 * 12               12 (50)
 * 13               13 (52)
 * 5V               5V
 * GND              GND           GND
 *                  2             3
 *                  3             5
 *                  5             6
 *                  6             9
 *                  7             10
 *                  8             11
 * 
 * OSC message: 
 * /arm Id (int 0-5), PWM (int 0-255), Delay (int 0-100)
 * 
*/
 
#include <SPI.h>
#include <Ethernet.h>
#include <ArdOSC.h>
 
#include "PwmMotor.h"
 
// ---- NETWORK ---- //
byte myIp[] = { 192, 168, 0, 105 }; // IP
int serverPort = 9105; // Receive port
byte myMac[] = {  0xED, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; // MAC address
// 101 UDOO
// 102 { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }
// 103 { 0xEE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }
// 104 { 0xDD, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }
// 105 { 0xED, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }
// 106 { 0xCD, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }
 
char oscmsg[]="/arm";
 
OSCServer server; // to receive messages
 
// ---- CONFIGURATIONS ---- //
const int PINS[] = {2,3,5,6,7,8}; // pins Mosfets Shield (for MEGA because Ethernet Shield use 10,11,12,13 pin and 4th pin for SD Card)
const int TIME_MAX = 120;
const int NB = 6;
const int TEMPO = 10; // sampling tempo
const boolean DEBUG = true;
 
// ---- MOTORS --------- //
int motor_id, motor_pwm, motor_time;
PwmMotor motors[NB];
unsigned long current = 0;
 
// ---- SETUP ----------- //
void setup() {
 Ethernet.begin(myMac,myIp); 
 server.begin(serverPort);
 server.addCallback(oscmsg, &get_osc); // callback function (receive)
 
 if (DEBUG) Serial.begin(38400);
 
 for (int i=0; i < NB; i++) {
     motors[i].init(PINS[i], TIME_MAX, DEBUG);
  }
}
 
// ---- PROGRAM ----------- //
void loop() {
  // UPDATE TIME
  current = millis();
 
  if(server.availableCheck()>0){
    // alive 
    }
 
  // MOTOR OFF
  for (int i=0; i < NB; i++) {
     if( motors[i].isOn() ) motors[i].off(current);
  }
 
  delay(TEMPO);
}
 
// Get OSC Message
void get_osc(OSCMessage *_mes){
  motor_id=_mes->getArgInt32(0);
  motor_pwm=_mes->getArgInt32(1);
  motor_time=_mes->getArgInt32(2);
 
  if (DEBUG) {
    Serial.print(motor_id);
    Serial.print(motor_pwm);
    Serial.println(motor_time);
  }
 
  // MOTOR ON
  if( motors[motor_id].isOn() == false ) motors[motor_id].on(current, motor_pwm, motor_time);
}

Idem avec capteur de présence (série)

Fichiers : chimeresorchestra_arduino_sensor_20161104.zip

chimeres_capteur

// Chimères Orchestra
// Raspberry Pi > Pd > Serial > Arduino MEGA > MOSFETS
// Digital sensor to activate
 
#include "PwmMotor.h"
 
// ---- CONFIGURATIONS ---- //
int pins[] = {3,5,6,9,10,11}; // pins Shield Mosfets
int time_max = 150;
boolean DEBUG = false;
 
// ---- VARIABLES --------- //
int id, pwm, time;
const int nb = 6;
PwmMotor motors[nb];
unsigned long current = 0;
 
unsigned long button_interval = 50;
unsigned long button_previous = 0;
int button_state = 0;
int button_last_state = 0;
int button_pin = 2; //2,4,7,8,12,13
 
 
// ---- PROGRAM ----------- //
void setup() {
  Serial.begin(38400);
   for (int i; i < nb; i++) {
     motors[i].init(pins[i], time_max, DEBUG);
  }
}
 
void loop() {
  current = millis();
 
  // Sensor
  if(current - button_previous > button_interval) { // sampling
      button_previous = current; 
      button_state = digitalRead(button_pin);
      if (button_state != button_last_state) {       // if the state has changed
        Serial.println(button_state);
      }
      button_last_state = button_state;
  }
 
  // ON
  while (Serial.available()) {
     id = Serial.parseInt(); 
     pwm = Serial.parseInt();
     time = Serial.parseInt();
     if (Serial.read() == '\n') {
       if( motors[id].isOn() == false )  motors[id].on(current, pwm, time);
     }
   }
 
  // OFF
  for (int i; i < nb; i++) {
     if( motors[i].isOn() ) motors[i].off(current);
  }
 
  delay(5);
}

Serial / Arduino / PwmMotor library

Fichiers : chimeres_serial_interval_pwm.zip

chimeres_serial_interval_pwm

// Chimères Orchestra
// Pd > Serial > Arduino MEGA > MOSFETS
 
#include "PwmMotor.h"
 
// ---- CONFIGURATIONS ---- //
int pins[] = {2,3,4,5,6,7};
int time_max = 150;
boolean DEBUG = false;
 
// ---- VARIABLES --------- //
int id, pwm, time;
const int nb = 6;
PwmMotor motors[nb];
unsigned long current = 0;
 
// ---- PROGRAM ----------- //
void setup() {
  Serial.begin(38400);
   for (int i; i < nb; i++) {
     motors[i].init(pins[i], time_max, DEBUG);
  }
}
 
void loop() {
  current = millis();
 
  // ON
  while (Serial.available()) {
     id = Serial.parseInt(); 
     pwm = Serial.parseInt();
     time = Serial.parseInt();
     if (Serial.read() == '\n') {
       if( !motors[id].isOn() )  motors[id].on(current, pwm, time);
     }
   }
 
  // OFF
  for (int i; i < nb; i++) {
     if( motors[i].isOn() ) motors[i].off(current);
  }
 
  delay(1);
}

PwmMotor.h

#ifndef PWMMOTOR_H
#define PWMMOTOR_H
 
#include <Arduino.h>
 
class PwmMotor
{
	public:
	PwmMotor();
	~PwmMotor();
	void init(int _pin, int _time_max, boolean _debug);
  	void on(unsigned long _current, int _pwm, int _time);
  	void off(unsigned long _current);
        boolean isOn();
 
	private:
	boolean debug;
  	boolean state;
	unsigned long last;   
	long time_on; 
	int time_on_max;
	int pin;
};
 
#endif

PwmMotor.cpp

#include "PwmMotor.h"
 
PwmMotor::PwmMotor(){
	state = false;
	last = 0;   
	time_on = 150;
	debug = false;
}
 
PwmMotor::~PwmMotor(){}
 
void PwmMotor::init(int _pin, int _time_max, boolean _debug = false){
	debug = _debug;
	time_on_max = _time_max;
	pin = _pin;
     	pinMode(pin, OUTPUT);
     	digitalWrite(pin, LOW);
}
 
boolean PwmMotor::isOn(){
        return state; 
}
 
void PwmMotor::on(unsigned long _current, int _pwm, int _time){
	if( _current - last >= (time_on + 10) ) { // !state &&
                state = true;
                last = _current;
		time_on = constrain(_time, 0, time_on_max);
                if (debug) Serial.println("ON ");
		analogWrite(pin, _pwm);
	}
}
 
void PwmMotor::off(unsigned long _current) {
	if( _current - last >= time_on ) { // state &&
		state = false;
	    	analogWrite(pin, 0);
                if (debug) Serial.println("OFF");
	}
}

UDP / OSC

Code UDP OSC

#include <SPI.h>
#include <Ethernet.h>
 
boolean DEBUG = false;
 
int pins_pwm[] = {2,3,4,5,6,7};
int pins_nb = 6;
byte mac[] = {  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress ip(192, 168, 0, 102);
unsigned int localPort = 8888;      
char packetBuffer[UDP_TX_PACKET_MAX_SIZE];
char *inParse[100];
EthernetUDP Udp;
 
void setup() {
  Ethernet.begin(mac,ip);
  Udp.begin(localPort);
  if (DEBUG) Serial.begin(38400);
 
  for (int thisPin = 0; thisPin < pins_nb ; thisPin++) {
   pinMode(thisPin, OUTPUT);
   digitalWrite(thisPin, LOW);
 }
}
 
void loop() {
  int packetSize = Udp.parsePacket();
  if(packetSize)
  {
    Udp.read(packetBuffer,UDP_TX_PACKET_MAX_SIZE);
    //if (DEBUG) Serial.println(packetBuffer);
    ParseData();
  }
  delay(1);
}
 
void ParseData()
{
  char *p = packetBuffer;
  char *str;
  String func;
  int count = 0;
  // delimiter " "
  while ((str = strtok_r(p, " ", &p)) != NULL) { 
    inParse[count] = str;
    count++;
    //if (DEBUG) Serial.println(str);
  }
 
  if(count == 3)
  {
    func = inParse[0];
    if (func == "/pwm") {
       int tmpPin = atoi(inParse[1]);
       int tmpPwm = atoi(inParse[2]);
       analogWrite(pins_pwm[tmpPin], constrain(tmpPwm,0,255));
      if (DEBUG) Serial.println(inParse[1]);
      if (DEBUG) Serial.println(inParse[2]);
    }
 
  }
}

SERIAL - UNO

Code UNO / PWM

/*
 * Pd > Arduino UNO
 * 6 sorties MOSFETS PWM
 *
 */
 
int pin, _pwm;
 
void setup() 
{
  Serial.begin(19200);
 
  pinMode(3, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);
 
  digitalWrite(3, LOW);
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(9, LOW);
  digitalWrite(10, LOW);
  digitalWrite(11, LOW);
 
  // --- PWM frequency for D5 & D6  ----
  //TCCR0B = TCCR0B & B11111000 | B00000001; // 62500.00 Hz
  //TCCR0B = TCCR0B & B11111000 | B00000010; // 7812.50 Hz
  //TCCR0B = TCCR0B & B11111000 | B00000011; // 976.56 Hz
  //TCCR0B = TCCR0B & B11111000 | B00000100; // 244.14 Hz
  //TCCR0B = TCCR0B & B11111000 | B00000101; // 61.04 Hz
 
  // ---- PWM frequency for D9 & D10 ----
  //TCCR1B = TCCR1B & B11111000 | B00000001; // 31372.55 Hz
  //TCCR1B = TCCR1B & B11111000 | B00000010; // 3921.16 Hz
  //TCCR1B = TCCR1B & B11111000 | B00000011; // 490.20 Hz
  //TCCR1B = TCCR1B & B11111000 | B00000100; // 122.55 Hz
  //TCCR1B = TCCR1B & B11111000 | B00000101; // 30.64 Hz
 
  // ---- PWM frequency for D3 & D11 ----
  //TCCR2B = TCCR2B & B11111000 | B00000001; // 31372.55 Hz
  //TCCR2B = TCCR2B & B11111000 | B00000010; // 3921.16 Hz
  //TCCR2B = TCCR2B & B11111000 | B00000011; // 980.39 Hz
  //TCCR2B = TCCR2B & B11111000 | B00000100; // 490.20 Hz
  //TCCR2B = TCCR2B & B11111000 | B00000101; // 245.10 Hz
  //TCCR2B = TCCR2B & B11111000 | B00000110; // 122.55 Hz
  //TCCR2B = TCCR2B & B11111000 | B00000111; // 30.64 Hz
}
 
void loop() 
{
   while (Serial.available()) 
  {
     pin = Serial.parseInt(); 
     _pwm = Serial.parseInt(); 
 
     if (Serial.read() == '\n') {
      /*
      Serial.print(pin);
      Serial.print(" ");
      Serial.println(_pwm);
      */
      analogWrite(pin, constrain(_pwm,0,255));  
     }
  }
}

SERIAL - MEGA

Code Mega / PWM

// Pd > Arduino MEGA
// 6 sorties MOSFETS PWM
 
int id;
int arg;
 
void setup() 
{
  Serial.begin(19200);
 
  pinMode(13, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(8, OUTPUT);
 
  digitalWrite(13, LOW);
  digitalWrite(12, LOW);
  digitalWrite(11, LOW);
  digitalWrite(10, LOW);
  digitalWrite(9, LOW);
  digitalWrite(8, LOW);
 
  //MEGA : D4 & D13
  //TCCR0B = TCCR0B & B11111000 | B00000001; // 62500.00 Hz
  //TCCR0B = TCCR0B & B11111000 | B00000010; // 7812.50 Hz
  //TCCR0B = TCCR0B & B11111000 | B00000011; // 976.56 Hz
  //TCCR0B = TCCR0B & B11111000 | B00000100; // 244.14 Hz
  //TCCR0B = TCCR0B & B11111000 | B00000101; // 61.04 Hz
 
  //MEGA : D11 & D12
  //TCCR1B = TCCR1B & B11111000 | B00000001; //31372.55 Hz
  //TCCR1B = TCCR1B & B11111000 | B00000010; //3921.16 Hz
  //TCCR1B = TCCR1B & B11111000 | B00000011; //490.20 Hz
  //TCCR1B = TCCR1B & B11111000 | B00000100; //122.55 Hz
  //TCCR1B = TCCR1B & B11111000 | B00000101; //30.64 Hz
 
  //MEGA : D9 & D10
  //TCCR2B = TCCR2B & B11111000 | B00000001; //31372.55 Hz
  //TCCR2B = TCCR2B & B11111000 | B00000010; //3921.16 Hz
  //TCCR2B = TCCR2B & B11111000 | B00000011; //490.20 Hz
  //TCCR2B = TCCR2B & B11111000 | B00000100; //122.55 Hz
  //TCCR2B = TCCR2B & B11111000 | B00000101; //30.64 Hz
 
  //MEGA : D2, D3 & D5
  //TCCR3B = TCCR3B & B11111000 | B00000001; //31372.55 Hz
  //TCCR3B = TCCR3B & B11111000 | B00000010; //3921.16 Hz
  //TCCR3B = TCCR3B & B11111000 | B00000011; //490.20 Hz
  //TCCR3B = TCCR3B & B11111000 | B00000100; //122.55 Hz
  //TCCR3B = TCCR3B & B11111000 | B00000101; //30.64 Hz
 
  //MEGA : D6, D7 & D8
  //TCCR4B = TCCR4B & B11111000 | B00000001; //31372.55 Hz
  //TCCR4B = TCCR4B & B11111000 | B00000010; //3921.16 Hz
  //TCCR4B = TCCR4B & B11111000 | B00000011; //490.20 Hz
  //TCCR4B = TCCR4B & B11111000 | B00000100; //122.55 Hz
  //TCCR4B = TCCR4B & B11111000 | B00000101; //30.64 Hz
 
  //MEGA : D44, D45 & D46
  //TCCR5B = TCCR5B & B11111000 | B00000001; //31372.55 Hz
  //TCCR5B = TCCR5B & B11111000 | B00000010; //3921.16 Hz
  //TCCR5B = TCCR5B & B11111000 | B00000011; //490.20 Hz
  //TCCR5B = TCCR5B & B11111000 | B00000100; //122.55 Hz
  //TCCR5B = TCCR5B & B11111000 | B00000101; //30.64 Hz
}
 
void loop() 
{
   while (Serial.available()) 
  {
     id = Serial.parseInt(); 
     arg = Serial.parseInt(); 
 
     if (Serial.read() == '\n') {
      /*
      Serial.print("CMD : ");
      Serial.print(id);
      Serial.print(" ");
      Serial.println(arg);
      */
      analogWrite(id, constrain(arg,0,255));  
     }
  }
}

Dublin 06/2012

Code répéteur autonome (avec piezo)
Fichiers : chimeresorchestra_0_04.zip

Code autonome

// Not tested !
// TO DO : verify input sensor and automatic, verify sequences modes
 
// ******************************************* //
// Chimères Orchestra
// Robotic drums in public space
// In the "Hack the city" exhibition, Science Gallery, Dublin
// http://jeromeabel.net/art/chimeres-orchestra
// Jérome Abel - 22/06/2012
// GNU/GPL v3
// ******************************************* //
 
// LIEU
// 0 : Gallery, 1 : Meeting house square (left side), 2 : Meeting house square (right side)
int LOCATION = 0; 
 
// SOLENOIDS
const int NUMBER = 5;
int solenoids_pins [][NUMBER] =
{
  {5,2,7,6,8}, // Gallery
  {4,6,8,12,5}, // Meeting house square (left side)
  {4,6,12,7,5}, // Meeting house square (right side)
};
 
// DEBUG
boolean DEBUG = true;
 
// AUTOMATIC TIME
//int auto_interval = 15*60000; // 15 minutes
int auto_interval = 20000; // 15 minutes
int auto_duration = 5000;
 
// PIEZO
const int p_threshold = 80;
const int p_debounce = 100; // antirebond
const int p_interval = 12000; // after 8 seconds, rhythms stop
const int p_interval_min = 8000; // minimum
const int p_interval_max = 25000; // maximum
 
const int p_declenchement_seq = 8; // number of hits to start rhythms 
const int p_pin = A0; // sensor pin
 
// ATTACK TIME
int on = 35; // default setting
int s_attack_on = on; // default setting
int s_attack_on_min = 30;
int s_attack_on_max = 45;
 
int off = 90;// default setting
int s_attack_off = off ; 
int s_attack_off_min = 80;
int s_attack_off_max = 110;
 
int seq_interval = s_attack_on + s_attack_off;
 
// ******************* RHYTHMS ********************* //
 
// SEQUENCES 
boolean seq[][4] = 
{
{0,0,0,0}, // 0
{1,0,0,0}, // 1
{0,1,0,0}, // 2
{0,0,1,0}, // 3
{0,0,0,1}, // 4
{1,1,0,0}, // 5
{1,0,1,0}, // 6
{1,0,0,1}, // 7
{0,1,1,0}, // 8
{0,1,0,1}, // 9
{0,0,1,1}, // 10
{1,1,1,0}, // 11
{0,1,1,1}, // 12
{1,1,1,1}  // 13
};
 
int patterns[][4] = 
{
{5,5,5,5}, //0
{4,4,4,12},
{0,1,1,1},
{1,1,1,1},
{1,1,1,2},
{2,2,3,2}, 
{3,3,3,3}, 
{4,4,4,4},
{7,5,5,5},
{5,5,5,0},
{3,5,3,5},
{1,7,1,7},
{0,12,0,13},
{4,5,4,0},
{9,9,4,9},
{2,6,6,2},
{7,1,7,1}, 
{12,0,12,0}, 
{13,13,13,0}, // 18
 
// EXTRA
{12,0,0,0}, // 19
{0,0,0,5},
{0,0,0,9},
{2,5,0,0},
{0,3,0,3},
{3,0,5,0},
{6,6,0,0},
{0,0,0,13},
{0,0,0,8},
{0,0,0,11},
{0,0,12,0}, 
{0,1,0,1}, 
{0,0,1,1}, 
{0,1,1,0},
{2,0,2,0}, 
{0,0,2,5}, 
{1,0,11,0},
{0,13,11,0} //36
};
// *************************************************** //
int seq_counter = 0;
int seq_counter_pattern = 0;
 
int seq_tempo = 0;
int solenoids_seq[6];
boolean auto_sequence = false;
int sequence_mode = 0;
 
// TIME
unsigned long currentMillis = 0;
unsigned long previousMillis = 0;
int interval = 1000;
unsigned long auto_time = 0;
 
// TAP TEMPO
unsigned long p_taptempo = 0;
float p_taptempo_average = 0;
float p_taptempo_total = 0;
float p_last_taptempo = 0;
 
// PIEZO
int p_reading = 0;
boolean p_state = false;
boolean p_state_last = false;
long p_time = 0; 
int p_counter = 0;
long p_counter_time = 0;
 
// SEQUENCE
long alternate_time = 0; 
int random_seq = random(24,32);
int random_attack_time = random(16,32);
 
 
// ****************** getPiezo() ************************* //
boolean getPiezo(){
  p_reading = analogRead(p_pin);   
  if (p_reading >= p_threshold && currentMillis - p_time >= p_debounce) 
  {
    p_counter++; 
 
    if (DEBUG) 
    {
      Serial.println("============");  
      Serial.println("Knock!");  
      Serial.print("PIEZO COUNTER:");
      Serial.println(p_counter);
    }
 
    if (p_counter > 1) 
    {
      p_last_taptempo = p_taptempo;
      p_taptempo = currentMillis - p_time;
      if (DEBUG) 
      {
         Serial.print("TAPTEMPO:");
         Serial.println(p_taptempo);
      }
      p_taptempo_total = (int)p_taptempo + (int)p_last_taptempo;
      if (p_counter > 2)
      {
        p_taptempo_average = p_taptempo_total / 2 ;
        if (DEBUG)
        {
          Serial.print("AVERAGE:");
          Serial.println(p_taptempo_average);
        }
       }
     }
 
     p_time = currentMillis;
     return true;   
  } 
  else { return false;}
}
 
// ***************** single_attack() **************** //
void single_attack(int pin){
 digitalWrite(pin, HIGH); 
 delay(s_attack_on);
 digitalWrite(pin, LOW); 
 delay(s_attack_off);
}
 
// ****************** chenillard() ****************** //
void chenillard(){  
  if (DEBUG) Serial.println("CHENILLARD");
  for (int i = 0; i < NUMBER ; i++) {
    single_attack(solenoids_pins[LOCATION][i]);
    delay(250);
  }
}
 
// ****************** SETUP ************************* //
void setup() {
  randomSeed(analogRead(1));
 
  Serial.begin(9600);
  for (int i = 0; i < NUMBER ; i++) {
    pinMode(solenoids_pins[LOCATION][i], OUTPUT);
    solenoids_seq[i] = random(13);
  }
  delay(1000);
  chenillard();
}
 
// ****************** LOOP ************************* //
void loop() {  
  currentMillis = millis();
 
  // start automatic
  if (currentMillis - auto_time > auto_interval){
    auto_sequence = true;
    sequence_mode = 1;//random(2);
    auto_time = currentMillis;
    seq_counter_pattern=0;
    seq_counter=0;
    if (DEBUG) Serial.println("AUTO:ON");
  }
 
   // stop automatic
  if (auto_sequence && currentMillis - auto_time > auto_duration){
    auto_sequence = false;
 
    if (DEBUG) Serial.println("AUTO:OFF");
  }
 
  // getPiezo
 // if (!auto_sequence) p_state = getPiezo();
 
  // p_interval, counter
  if (!auto_sequence && currentMillis - p_time > p_interval ){
    p_counter=0;
    p_taptempo_total = 0;
    p_taptempo_average = 0;
    seq_counter=0;
    seq_counter_pattern=0;
  }
 
  // single_attack with the piezo
  if (p_counter > 0 && p_counter < p_declenchement_seq && p_state) 
  {
    int pin = solenoids_pins[LOCATION][random(NUMBER)];
    if (DEBUG) { 
      Serial.print("ATTACK PIN:");
      Serial.println(pin);
    }
    single_attack(pin);
  }
 
  // start rhythms with a "chenillard"
  if (p_counter == p_declenchement_seq) 
  {
    chenillard();
    sequence_mode = random(2);
  }
 
  if (p_counter >= p_declenchement_seq || auto_sequence )
  {
    if (!auto_sequence) seq_tempo = seq_interval * (p_taptempo_average / 1000); // change the tempo with piezo tap tempo
    else seq_tempo = seq_interval;
 
    if (currentMillis - previousMillis > seq_tempo )
    { 
      if (DEBUG)
      { 
        Serial.print("SEQ COUNTER :");
        Serial.println(seq_counter);
      }
 
      // random attack time on/off every [8-32] steps
      if (seq_counter % random_attack_time == 0)
      {
       random_attack_time = random(8,32);
       if (random(100) > 60) { // 40% of random
         s_attack_on = random (s_attack_on_min, s_attack_on_max);
         s_attack_off = random (s_attack_off_min, s_attack_off_max);
       }
       else {
         s_attack_on = on;
         s_attack_on = off;
       }
       seq_interval = s_attack_on + s_attack_off; // update sequence interval
      }
 
      // SEQUENCE MODE 0 (random)
      if (sequence_mode == 0) 
      {
        // random sequences every [24-32] steps
        if (seq_counter % random_seq == 0)
        {
         random_seq = random(24,32);
         for (int i = random(2); i < random(4,6) ; i++) 
         {
           solenoids_seq[i] = random(14);
         }
        }
 
        // ON : sequences for each pins
        for (int i = 0; i <  NUMBER ; i++) {
          digitalWrite(solenoids_pins[LOCATION][i], seq[solenoids_seq[i]][seq_counter % 4]); 
        }    
        delay(s_attack_on);
      }
 
      // SEQUENCE MODE 1 (less random, more human)
      if (sequence_mode == 1)
      {
        // random patterns every [24-32] steps
        if (seq_counter % random_seq == 0)
        {
         random_seq = random(32,64);
         for (int i = random(2); i < random(4,6) ; i++) 
         {
           int choice = random(3);
           if (choice == 0)  solenoids_seq[i] = random(19);
           else if (choice == 1) solenoids_seq[i] = random(19,36);
         }
        }
 
        // ON : sequences for each pins
        for (int i = 0; i <  NUMBER ; i++) 
        {
          digitalWrite(solenoids_pins[LOCATION][i], seq[patterns[solenoids_seq[i]][seq_counter_pattern % 4]][seq_counter % 4]);
          if (DEBUG) 
          {
           Serial.println ("=========="); 
           Serial.print ("INDEX"); 
           Serial.print (i); 
           Serial.print (" - SOLENOID : "); 
           Serial.print (solenoids_pins[LOCATION][i]); 
           Serial.print (" - PATTERN :"); 
           Serial.print (solenoids_seq[i]); 
           Serial.print (" - SEQ : "); 
           Serial.print (patterns[solenoids_seq[i]][seq_counter_pattern % 4]); 
           Serial.print (" - DIGITAL WRITE: "); 
           Serial.println (seq[patterns[solenoids_seq[i]][seq_counter_pattern % 4]][seq_counter % 4]); 
          }
 
          if (seq_counter % 4 == 0)
          { 
            seq_counter_pattern++;
          }
        }    
        delay(s_attack_on); 
      }
 
      // OFF : all off
      for (int i = 0; i <  NUMBER ; i++) {
        digitalWrite(solenoids_pins[LOCATION][i], 0); 
      }
      delay(s_attack_off);  
 
      seq_counter++;
 
      previousMillis = currentMillis;
    } // end seq_tempo
  } // end start rythms
 
  delay(5);  // delay to avoid overloading the serial port buffer
}