#define COL_NB 2
#define LIN_NB 7
 
int pin_col[COL_NB] = {2, 3};
int pin_lin[LIN_NB] = {4, 5, 6, 7, 8, 9, 10};
 
 
 
void setup() {
  for (int i = 0; i < COL_NB; i++) {
    pinMode(pin_col[i], OUTPUT);
  }
 
  for (int i = 0; i < LIN_NB; i++) {
    pinMode(pin_lin[i], OUTPUT);
  }
 
  Serial.begin(114200);
  Serial.println("let's rock!");
}
 
void loop() {
 
  for (int i = 0; i < 2; i++) {
    int a = random(2) + 2;
    //int a=pin_col[i];
 
    digitalWrite(a, HIGH);
    Serial.print("col= ");
    Serial.println(a);
 
    for (int j = 0; j < LIN_NB; j++) {
      int b = random(7) + 4;
      //int a=pin_lin[j];
 
      digitalWrite(b, HIGH);
      Serial.print("line= ");
      Serial.println(pin_lin[j]);
      delay(50);
 
      random(5)==0?digitalWrite(b, LOW):digitalWrite(b, HIGH);
    }
 
    digitalWrite(a, LOW);
 
    /*
        for (int j = 0; j < LIN_NB; j++) {
          //digitalWrite(pin_lin[j], HIGH);
          Serial.print("line= ");
          Serial.println(pin_lin[j]);
          delay(10);
          digitalWrite(pin_lin[j], LOW);
        }
 
        digitalWrite(pin_col[i], LOW);
    */
  }
 
}

#include <DIO2.h>
 
 
#define COL_NB 2
#define LIN_NB 7
 
int pin_col[COL_NB] = {2, 3};
int pin_lin[LIN_NB] = {4, 5, 6, 7, 8, 9, 10};
 
//AC
#define  pinACsense A0
int last_AC_detect = LOW;
 
void setup() {
  //AC
  pinMode2(pinACsense, INPUT);
  pinMode2(LED_BUILTIN, OUTPUT);
 
  for (int i = 0; i < COL_NB; i++) {
    pinMode2(pin_col[i], OUTPUT);
  }
 
  for (int i = 0; i < LIN_NB; i++) {
    pinMode2(pin_lin[i], OUTPUT);
  }
 
  //Serial.begin(114200);
  //Serial.println("let's rock!");
}
 
int intensity_time = 0;
int step = 40;
//  bool back_from_last_scan = false;
 
void loop() {
 
  // LIGNES < 7
  for (int i = 0; i < 4; i++) {
 
/*
    int AC_detect = LOW;
    // Wait for AC sync...
    while ( AC_detect !=  HIGH || back_from_last_scan) {
      AC_detect = digitalRead(pinACsense);
    }
*/
    int a = pin_lin[i];
 
    digitalWrite2(a, HIGH);
 
    // COLONNES < 2
    for (int j = 0; j < 2; j++) {
 
      int b = pin_col[j];
      digitalWrite2(b, HIGH);
 
    }
 
    int AC_detect = LOW;
    // Wait for AC sync...
    while ( AC_detect !=  HIGH) {
      AC_detect = digitalRead2(pinACsense);
    }
 
    //delayMicroseconds(9000);
    /*
        delayMicroseconds(intensity_time);
        intensity_time += step;
        if(abs(intensity_time) > 9000) step=-step;
    */
    // ligne down
    digitalWrite2(a, LOW);
 
    // cols down
    for (int j = 0; j < 2; j++) {
      int b = pin_col[j];
      digitalWrite2(b, LOW);
    }
 
//    back_from_last_scan = true;
 
  }
 
}