Fan PuppetMaster

fanpuppetmaster.ino

// int const pin_led_low = 27;
// int const pin_led_med = 26;
// int const pin_led_high = 25;
// int const pin_led_in = 33;
// int const pin_led_out = 32;
// int const pin_led_exch = 35;
// int const pin_led_am = 34;
// 
// int const pin_btn_pwr = 12;
// int const pin_btn_airflow = 14;
// int const pin_btn_mode = 2;

int const pin_led_low = 2;
int const pin_led_med = 3;
int const pin_led_high = 4;
int const pin_led_in = 8;
int const pin_led_out = 7;
int const pin_led_exch = 6;
int const pin_led_am = 5;

int const pin_btn_pwr = 11;
int const pin_btn_mode = 12;
int const pin_btn_airflow = 13;

void blip(int pin) {
  pinMode(pin, OUTPUT);
  digitalWrite(pin, LOW);
  delay(10);
  pinMode(pin, INPUT);
  delay(10);
}

int detect(int pin) {
  // Serial.printf("Testing pin %d: ", pin);
  Serial.print("Testing pin "); Serial.print(pin); Serial.print(": ");
  int a = 0;
  int tmp = 0;
  for (int i = 0; i < 16; i++) {
    tmp = digitalRead(pin) == HIGH ? 1 : 0;
    // Serial.printf("%d", tmp);
    Serial.print(tmp);
    a += tmp;
    delay(5);
  }
  // Serial.printf("(result: %d)\n", a);
  Serial.print(" (result: "); Serial.print(a); Serial.println(")");
  if (pin == pin_led_high || pin == pin_led_out) {
    return a > 14;
  } else {
    return a > 9;
  }
}


enum PowerState { PW_OFF, PW_LOW, PW_MED, PW_HIGH };
enum Airflow { AF_IN, AF_OUT, AF_EXCH };

struct State {
  enum PowerState power_state;
  enum Airflow airflow;
  bool am_state;  
};

void update_state(struct State &state) {
  bool low = detect(pin_led_low);
  bool med = detect(pin_led_med);
  bool high = detect(pin_led_high);
  state.power_state = low ? PW_LOW :
    med ? PW_MED :
    high ? PW_HIGH :
    PW_OFF;

  bool af_in = detect(pin_led_in);
  bool af_out = detect(pin_led_out);
  bool af_exch = detect(pin_led_exch);
  state.airflow = af_in ? AF_IN :
    af_out ? AF_OUT :
    af_exch ? AF_EXCH :
    state.airflow;
  
  state.am_state = detect(pin_led_am);
}

struct State curr_state;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  
  pinMode(pin_led_low,  INPUT);
  pinMode(pin_led_med,  INPUT);
  pinMode(pin_led_high, INPUT);
  pinMode(pin_led_in,   INPUT);
  pinMode(pin_led_out,  INPUT);
  pinMode(pin_led_exch, INPUT);
  pinMode(pin_led_am,   INPUT);

  pinMode(pin_btn_pwr, INPUT);
  pinMode(pin_btn_airflow, INPUT);
  pinMode(pin_btn_mode, INPUT);

  curr_state.power_state = PW_OFF;
  curr_state.am_state = true;
  curr_state.airflow = AF_IN;
  
  delay(2000);
  blip(pin_btn_pwr);
  delay(1000);
}

void loop() {
  // put your main code here, to run repeatedly:
  static int loops = 0;
  int in_pin  = 27;
  int out_pin = 12;

  //Serial.printf("Loop %d\n", loops);
  Serial.print("Loop "); Serial.print(loops); Serial.print('\n');
  
  // blip(pin_btn_airflow);

  update_state(curr_state);

  //Serial.printf("State: %d %d %d\n", curr_state.power_state, curr_state.airflow, curr_state.am_state);
  Serial.print("State: "); Serial.print(curr_state.power_state); Serial.print(" ");
  Serial.print(curr_state.airflow); Serial.print(" "); Serial.println(curr_state.am_state);
  delay(1000);
  loops += 1;
}