add a "cooldown time"

[toast/airingbutler.git] / airingbutler.ino

diff --git a/airingbutler.ino b/airingbutler.ino
index 68cd95d7338cc37ccde355ade7f056607728242d..92461a63cd8f94d5ba5de40d0532ac569c373f7c 100644 (file)
--- a/airingbutler.ino
+++ b/airingbutler.ino
@@ -14,14 +14,26 @@ const int buzzer_pin = 13;
 const int co2_warning_thr = 1000;
 const int co2_alarm_thr   = 1500;
 
 const int co2_warning_thr = 1000;
 const int co2_alarm_thr   = 1500;
 

+const unsigned long warmuptime   = 60000; // 1 min.
+const unsigned long cooldowntime = 60000; // 1 min.
+

 MHZ19 mhz19 = MHZ19(rx_pin,tx_pin);
 LiquidCrystal lcd(7, 8, 9, 10, 11, 12);
 
 unsigned long time;
 MHZ19 mhz19 = MHZ19(rx_pin,tx_pin);
 LiquidCrystal lcd(7, 8, 9, 10, 11, 12);
 
 unsigned long time;

+unsigned long lastwarntime = 0;

 int co2 = 0;
 int temp = 0;
 int lastppm = 0;
 
 int co2 = 0;
 int temp = 0;
 int lastppm = 0;
 

+void buzz(unsigned long pause, int count) {
+       for (int i = 0; i <= count; i++) {
+               digitalWrite(buzzer_pin, HIGH);
+               delay(pause);
+               digitalWrite(buzzer_pin, LOW);
+               if (i < count - 1) delay(pause);
+       }
+}

 
 void setup()
 {
 
 void setup()
 {


@@ -32,17 +44,16 @@ void setup()
        mhz19.begin(rx_pin, tx_pin);
 
        // LCD
        mhz19.begin(rx_pin, tx_pin);
 
        // LCD

-       lcd.begin(16,2);
-       lcd.setCursor(0,0);
+       lcd.begin(16, 2);
+       lcd.setCursor(0, 0);

        lcd.print("Airing Butler");
        lcd.print("Airing Butler");

-       lcd.setCursor(0,1);
+       lcd.setCursor(0, 1);

        lcd.print("says hello!");
 
        lcd.print("says hello!");
 

-       // LEDs + buzzer
+       // LEDs

        pinMode(led_green_pin, OUTPUT);
        pinMode(led_yellow_pin, OUTPUT);
        pinMode(led_red_pin, OUTPUT);
        pinMode(led_green_pin, OUTPUT);
        pinMode(led_yellow_pin, OUTPUT);
        pinMode(led_red_pin, OUTPUT);

-       pinMode(buzzer_pin, OUTPUT);

        digitalWrite(led_green_pin, HIGH);
        delay(500);
        digitalWrite(led_green_pin, LOW);
        digitalWrite(led_green_pin, HIGH);
        delay(500);
        digitalWrite(led_green_pin, LOW);


@@ -52,9 +63,10 @@ void setup()
        digitalWrite(led_red_pin, HIGH);
        delay(500);
        digitalWrite(led_red_pin, LOW);
        digitalWrite(led_red_pin, HIGH);
        delay(500);
        digitalWrite(led_red_pin, LOW);

-       digitalWrite(buzzer_pin, HIGH);
-       delay(200);
-       digitalWrite(buzzer_pin, LOW);
+
+       // buzzer
+       pinMode(buzzer_pin, OUTPUT);
+       buzz(200, 1);

 
        lcd.clear();
 }
 
        lcd.clear();
 }


@@ -77,30 +89,27 @@ void loop()
        digitalWrite(led_yellow_pin, co2 >= co2_warning_thr && co2 < co2_alarm_thr);
        digitalWrite(led_green_pin, co2 < co2_warning_thr);
 
        digitalWrite(led_yellow_pin, co2 >= co2_warning_thr && co2 < co2_alarm_thr);
        digitalWrite(led_green_pin, co2 < co2_warning_thr);
 

-       if (co2 >= co2_alarm_thr && lastppm < co2_alarm_thr) {
-               digitalWrite(buzzer_pin, HIGH);
-               delay(100);
-               digitalWrite(buzzer_pin, LOW);
-               delay(100);
-               digitalWrite(buzzer_pin, HIGH);
-               delay(100);
-               digitalWrite(buzzer_pin, LOW);
-               delay(100);
-               digitalWrite(buzzer_pin, HIGH);
-               delay(100);
-               digitalWrite(buzzer_pin, LOW);
+       if (co2 >= co2_alarm_thr && lastppm < co2_alarm_thr && time - lastwarntime > cooldowntime) {
+               buzz(100, 3);
+               lastwarntime = time;

        }
 
        }
 

-       if (co2 >= co2_warning_thr && lastppm < co2_warning_thr) {
-               digitalWrite(buzzer_pin, HIGH);
-               delay(500);
-               digitalWrite(buzzer_pin, LOW);
+       if (co2 >= co2_warning_thr && lastppm < co2_warning_thr && time - lastwarntime > cooldowntime) {
+               buzz(500, 1);
+               lastwarntime = time;

        }
 
        lcd.setCursor(0, 0);
        lcd.print("CO2: ");
        lcd.print(co2);
        }
 
        lcd.setCursor(0, 0);
        lcd.print("CO2: ");
        lcd.print(co2);

-       lcd.print(" ppm         ");
+       if (time < warmuptime && (co2 == -1 || co2 == 410)) {
+               lcd.print (" (W)");
+       }
+       lcd.print(" ppm    ");
+       lcd.setCursor(0, 1);
+       lcd.print("Temp: ");
+       lcd.print(temp);
+       lcd.print(" C +/-  ");

 
        lastppm = co2;
        delay(5000);
 
        lastppm = co2;
        delay(5000);