First version of the new code, not fully tested on my Leonardo

Need to see the level for he kids

arduino/AqueponicsProject/AqueponicsProject.ino

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+/*
+ * 
+ * 
+ * 
+ *  Clock mechanism to execut an action every houres
+ *  
+ *  TODO Switch action reset houre to 9
+ *  TODO Safety extra sensor
+ */
+
+#include <TimerOne.h>
+#include <avr/io.h>
+#include <avr/interrupt.h>
+
+// Pin definitions
+#define LAMP          8     // Pin of the lamp relay
+#define LED           13    // For Leonardo built in led
+#define PUMP_IN       9     // Pin of the pump 1
+#define PUMP_OUT      10    // Pin of the pump 2
+#define WATER_UP      4     // Pin of the water sensor 1
+#define WATER_DOWN    5     // Pin of the water sensor 2
+
+// Time definition
+#define DAY_TIME      14    // Number of hours the day lasts (LAMP ON)
+#define DAY_START     9     // Hour of the day that the day start
+#define PUMP_CYCLE    15    // Time between 2 pump cycles
+#define WATER_UP_TIME 5     // Time to keep water up
+
+#define SIMULATION true //Boolean to activate the simulation (reduce time 1mn = 1s)
+
+// Time counter variables
+volatile int hoursCounter;   // 0 to 23
+volatile int secondsCounter;  // 0 to 59
+volatile int minutesCounter;  // 0 to 59
+
+bool ledState = 0;            // led status memory
+bool waterLevelState = 0;     // water level status memory 
+#define DOWN      0
+#define FILLING   1
+#define UP        3
+#define CLEARING  4
+
+
+/* void setup(void) 
+ *  Setup software run only once
+ *  Allows to setup all the software and hardware
+*/
+void setup(void)
+{
+  // Setup the pin function TODO select good pin
+  pinMode(LAMP, OUTPUT);
+  pinMode(LED, OUTPUT);
+  pinMode(PUMP_IN, OUTPUT);
+  pinMode(PUMP_OUT, OUTPUT);
+  pinMode(WATER_UP, INPUT);
+  digitalWrite(WATER_UP, HIGH);   //Setup pull up
+  pinMode(WATER_DOWN, INPUT);
+  digitalWrite(WATER_DOWN, HIGH); //Setup pull up
+  
+  // initialize Timer1 for 1 second interval
+  Timer1.initialize(1000000);     // Set 1 second to timer 1
+  Timer1.attachInterrupt(seconds_timer);
+
+  hoursCounter = DAY_START;      // Init the time to DAY_START at startup
+  minutesCounter = 1;
+  secondsCounter = 1;
+  digitalWrite(LAMP, HIGH);
+}
+
+
+/* void loop(void) 
+ *  Main program automatically loaded
+ *  
+*/
+void loop(void)
+{
+  switch (waterLevelState) {
+    
+    case DOWN:
+        //Wait for pump cycle time to activate pump
+        if(0 == (minutesCounter % PUMP_CYCLE))
+        {
+          digitalWrite(PUMP_IN, 1);   // Turn ON the filling pump
+          waterLevelState = FILLING;
+        }
+      break;
+      
+    case FILLING:
+       // wait for water up sensor to be activated
+       if(0 == digitalRead(WATER_UP))
+        {
+          digitalWrite(PUMP_IN, 0); // Turn OFF the filling pump
+          waterLevelState = UP;
+        }
+      break;
+      
+    case UP:
+        //Wait for level up time passed to clear 
+        if(0 == ((minutesCounter % PUMP_CYCLE) % WATER_UP_TIME))
+        {
+          digitalWrite(PUMP_OUT, 1);   // Turn ON the clearing pump
+          waterLevelState = CLEARING;
+        }
+      break;
+      break;
+      
+    case CLEARING:
+        // wait for water down sensor to be activated
+        if(0 == digitalRead(WATER_DOWN))
+        {
+          digitalWrite(PUMP_OUT, 0); // Turn OFF the clearing pump
+          waterLevelState = DOWN;
+        }
+      break;
+      
+    default:
+      // default is optional
+    break;
+  }
+}
+
+
+/* seconds_timer(void) 
+ *  Timer executed every seconds for time count
+ *  This function allows to make a basic clock which count hours, minutes and seconds
+*/
+void seconds_timer(void)
+{
+  
+  toggle_led(); //Toggle the card LED every seconds
+
+  // In case of SIMULATION increment minutes to go quicker
+  if (SIMULATION)
+  {
+    minutesCounter ++;      // Increment the minutes counter
+  }
+  else
+  {// In case of normal use, increment seconds
+    secondsCounter++;       // Increment the seconds counter
+  }
+
+  // Every 60s we increment the minutes counters (not used in SIMULATION)
+  if (0 == secondsCounter % 60)
+  {
+    minutesCounter ++;      //Increment the minutes counter
+    secondsCounter = 0;     // Clear the seconds counter
+  }
+
+  // Every  60min increment the hours counter
+  if (0 == minutesCounter % 60)
+  {
+    hoursCounter ++;        // Increment the hours counter
+    minutesCounter = 0;     // Clear the minutes counter
+    
+    // At the end of the day reset the hours counter
+    if (23 < hoursCounter)
+    {
+      hoursCounter = 0;     // Clear the hours counter
+    }
+
+    // Execute following code one time every hours
+    hours_action();
+  }
+}
+
+/* void hour_action(void) 
+ *  Program executed  one time every hours
+ *  
+*/
+void hours_action(void)
+{
+  //Check if something has to be done
+  if (DAY_START == hoursCounter)
+    digitalWrite(LAMP, 1);
+
+  if ((DAY_START + DAY_TIME) == hoursCounter)
+    digitalWrite(LAMP, 0);
+}
+
+void toggle_led(void)
+{
+   ledState = ledState ^ 1;
+    digitalWrite(LED, ledState);
+}
+

arduino/AqueponicsProject/README.txt

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+
+
+Librairies:
+TimerOne 
+https://github.com/PaulStoffregen/TimerOne
+Copy after unzip inside Arduino/hardware/libraries/