sensor1Serial.ino

//This code sends digital signals from Arduino to MATLAB that express analog voltage coming from a network of 7 resistors


int Anin0 = 0;      
int Anin1 = 1;                 
int Anin2 = 2;                 
int Anin3 = 3;                 
int Anin4 = 4;                 
int Anin5 = 5;                 
           

int v[6] = {};

void setup() {
    Serial.begin(9600);
}


void loop() {
     
    //setup for sample 1: 3 vcc 4 gound 
    pinMode(A0, INPUT); 
    pinMode(A1, INPUT);
    pinMode(A4, INPUT);
    pinMode(A5, INPUT);
    pinMode(A2, OUTPUT);
    pinMode(A3, OUTPUT);
    digitalWrite(A2, HIGH); 
    digitalWrite(A3, LOW);     
  
    delay(10);
    v[0] = analogRead(Anin0);
    delay(10);  
    v[1] = analogRead(Anin1);   
    delay(10);  
    v[2] = 1023;             
    v[3] = 0;
    v[4] = analogRead(Anin4);   
    delay(10);             
    v[5] = analogRead(Anin5); 
    delay(10);


    for(int i=0;i<6;i++){
        while(Serial.available() < 1) {
        } 
        Serial.read();  
        Serial.println(v[i]); 
    }


    //setup for sample 2: 1 - vcc 6 - ground 
    pinMode(A1, INPUT); 
    pinMode(A2, INPUT);
    pinMode(A3, INPUT);
    pinMode(A4, INPUT);
    pinMode(A0, OUTPUT);
    pinMode(A5, OUTPUT);
    digitalWrite(A0, HIGH);
    digitalWrite(A5, LOW);

    v[0] = 1023;   
    delay(10);             
    v[1] = analogRead(Anin1); 
    delay(10);
    v[2] = analogRead(Anin2); 
    delay(10);
    v[3] = analogRead(Anin3); 
    delay(10);
    v[4] = analogRead(Anin4);   
    delay(10);             
    v[5] = 0; 


    for(int i = 0; i < 6; i++) {
        while(Serial.available() < 1) {
        } 
        Serial.read();  
        Serial.println(v[i]);
    }
}