pump-o-tron!

pump-o-tron.ino

#define N_MEASUREMENTS 32 //Number of analogRead (pressure) measurements to average over

#define MAX_PRESSURE 830

const int pumpPin = 8;  //LOW TO RUN, HIGH TO STOP
const int valvePin = 9;  //HIGH TO CLOSE, LOW TO OPEN
const int pressurePin = A0; 

bool valveState=false;
unsigned long pressureFiltered = 0;

void setup() {
  Serial.begin(115200);
  // put your setup code here, to run once:
  digitalWrite(pumpPin,HIGH);
  digitalWrite(valvePin,LOW);

  pinMode(pumpPin,OUTPUT);
  pinMode(valvePin,OUTPUT);
  
}

void loop() {
  unsigned long ADCSum=0;
  for (int i=0; i<N_MEASUREMENTS; i++) {
    ADCSum+=analogRead(pressurePin); 
  }
  pressureFiltered = ADCSum>>5;

  char RX;
  if(Serial.available()) 
  { 
    RX=Serial.read();
    if(RX=='1') {digitalWrite(pumpPin,!digitalRead(pumpPin)); delay(100);}
    if(RX=='2') valveState = !valveState;
  }

  if(digitalRead(pumpPin)==LOW) valveState=HIGH; //KEEP VALVE CLOSED WHEN RUNNING PUMP
  digitalWrite(valvePin,valveState);
  
  
  
  
  Serial.print(digitalRead(pumpPin));
  Serial.print(',');
  Serial.print(valveState);
  Serial.print(',');
  Serial.println(pressureFiltered);
  delay(10);
  
  if(pressureFiltered > MAX_PRESSURE) digitalWrite(pumpPin,HIGH); //PUMP AUTO OFF!
  
}