Test_LPF.ino

Test_LPF.ino

//BCD to Decimal Test sketch by VE7DNT

const int A = 4; //pin numbers
const int B = 5;
const int C = 6;
const int D = 7;


void setup() {
  // put your setup code here, to run once:
    pinMode(A, OUTPUT); //Set pins to outputs
      pinMode(B, OUTPUT);
        pinMode(C, OUTPUT);
          pinMode(D, OUTPUT);

          digitalWrite(A, LOW);
          digitalWrite(B, LOW);
          digitalWrite(C, LOW);
          digitalWrite(D, LOW);

         Serial.begin (9600);  //USB Serial port
         delay (1000); //delay to let seial connect
   
}

void loop() {
  // put your main code here, to run repeatedly:
          digitalWrite(A, LOW);
          digitalWrite(B, LOW);
          digitalWrite(C, LOW);
          digitalWrite(D, LOW);//Q0 high
           Serial.println("LPF Q0"); //tell in serial monitor whats going on

delay (5000); //Hold for 5 seccond
          digitalWrite(A, HIGH);
          digitalWrite(B, LOW);
          digitalWrite(C, LOW);
          digitalWrite(D, LOW); //1.5mhz Q1 high
              Serial.println("LPF Q1"); //tell in serial monitor whats going on

delay (1000); //Hold for 1 sec
          digitalWrite(A, LOW);
          digitalWrite(B, HIGH);
          digitalWrite(C, LOW);
          digitalWrite(D, LOW); //3.5 mhz Q2 high
          Serial.println("LPF Q2"); //tell in serial monitor whats going on

delay (1000); //Hold for 1 sec
          digitalWrite(A, HIGH);
          digitalWrite(B, HIGH);
          digitalWrite(C, LOW);
          digitalWrite(D, LOW); //7 Mhz Q3 High
          Serial.println("LPF Q3"); //tell in serial monitor whats going on
delay (1000); //Hold for 1 sec
          digitalWrite(A, LOW);
          digitalWrite(B, LOW);
          digitalWrite(C, HIGH);
          digitalWrite(D, LOW); //10Mhz Q4 high
          Serial.println("LPF Q4"); //tell in serial monitor whats going on
delay (1000); //Hold for 1 sec
          digitalWrite(A, HIGH);
          digitalWrite(B, LOW);
          digitalWrite(C, HIGH);
          digitalWrite(D, LOW); //14Mhz Q5 High
          Serial.println("LPF Q5"); //tell in serial monitor whats going on
delay (1000); //Hold for 1 sec
          digitalWrite(A, LOW);
          digitalWrite(B, HIGH);
          digitalWrite(C, HIGH);
          digitalWrite(D, LOW); //18Mhz 
          Serial.println("LPF Q6"); //tell in serial monitor whats going on
delay (1000); //Hold for 1 sec
          digitalWrite(A, HIGH);
          digitalWrite(B, HIGH);
          digitalWrite(C, HIGH);
          digitalWrite(D, LOW); //21Mhz
          Serial.println("LPF Q7"); //tell in serial monitor whats going on
delay (1000); //Hold for 1 sec
          digitalWrite(A, LOW);
          digitalWrite(B, LOW);
          digitalWrite(C, LOW);
          digitalWrite(D, HIGH);//24.5mhz
          Serial.println("LPF Q8"); //tell in serial monitor whats going on
delay (1000); //Hold for 1 sec
          digitalWrite(A, HIGH);
          digitalWrite(B, LOW);
          digitalWrite(C, LOW);
          digitalWrite(D, HIGH); //28Mhz
          Serial.println("LPF Q9"); //tell in serial monitor whats going on
delay (1000); //Hold for 1 sec
  

} //END Loop