light controller

mosfet-light-control.ino

//A7 low A2 low for button input
//A0 input 1, A5 input 2
//A7 is not going low for some reason when defined as a low output - did not work with knockoff
//board, but works with Nano Every

#define button1 A0
#define button2 A5
#define PIRInput 12

int analogValue = 20;
int analogMap = 51;
bool button1State = 1;
bool button2State = 1;
bool PIRState = 0;
long previousMillis = 0;
unsigned long currentMillis = 0;
long stayOn = 600000; //how long to stay on after triggered 600000 = 10 minutes

void setup() {
  // set A2, A7 to LOW permanently, D11 HIGH
  pinMode(A2, OUTPUT);
  digitalWrite(A2, LOW);
  pinMode(A7, OUTPUT);
  digitalWrite(A7, LOW);
  pinMode(11, OUTPUT);
  digitalWrite(11, HIGH);
  
  // set A0, A5 to input pullups
  pinMode(button1, INPUT_PULLUP);
  pinMode(button2, INPUT_PULLUP);
  pinMode(PIRInput, INPUT); //PIR SENSOR
  pinMode(9, OUTPUT); //MOSFET output
  pinMode(13, OUTPUT); //indiactor LED
  
  Serial.begin(9600);
}


void loop() {
button1State = digitalRead(button1);
button2State = digitalRead(button2);
PIRState = digitalRead(PIRInput);
currentMillis = millis();

if(button2State == LOW && analogValue <= 80){
  analogValue += 20;
  analogMap = map(analogValue, 0, 100, 0, 255);
}

if(button1State == LOW && analogValue >= 20){
  analogValue -=20;
  analogMap = map(analogValue, 0, 100, 0, 255);
}

if(PIRState == HIGH){
  previousMillis = currentMillis;
}

if((currentMillis - previousMillis) < stayOn){
  analogWrite(9, analogMap);
  analogWrite(13, analogMap);
}

if((currentMillis - previousMillis) >= stayOn){
  analogWrite(9, 25);
  //analogWrite(13, 51);v //onboard LED, can be used for testing
}

/*
Serial.print(button1State); Serial.print("  "); Serial.print(button2State); 
Serial.print("  "); Serial.print(analogValue); Serial.print("  "); Serial.print(analogMap);
Serial.print(" PIRState "); Serial.println(PIRState);
*/

delay(100); //debounce etc


}