Overload protection prep

Sonoff_Controlled_Heater.ino

@@ -78,6 +78,12 @@ int energyResetCounter;
 //-------------------------------
 bool relayOveride = false;
 bool relayControl = false;
+bool safeLoad = true;
+bool previousSafeLoad = true;
+
+int loadAttempt = 0;
+bool resetRequired = false;
+
 
 #include "config.h"
 #include "timer.h"
@@ -170,5 +176,5 @@ void loop() {
       RelayOff();
     }
   }
-
+  previousSafeLoad = safeLoad; // Flag
 }

config.h

@@ -21,3 +21,12 @@ Temperature temp = {
 * This is an anti-short cycle feature.
  */
 int cooldownPeriod = 30;
+
+// Max current allowed before disconnecting relay. Sonoff says the s31 is rated for 15 amps.
+#define maxSafeLoad 15
+
+// Cooldown before attempting to reconnect load
+#define loadCooldown 30
+
+// Attempts before giving up and leaving relay off until reset
+#define loadConnectAttempts 3

function.h

@@ -5,10 +5,12 @@
 // Toggle the relay on
 void RelayOn() 
 {
+  if (!resetRequired) {
   digitalWrite( RELAY, HIGH );
   relayState = true;
   Blynk.virtualWrite( V0, HIGH ); // Sync the Blynk button widget state
   Blynk.virtualWrite( V1, relayState*255 );
+  }
 }
 
 // Toggle the relay off
@@ -313,3 +315,20 @@ byte returnConfigVersion() {
   EEPROM.get(3,grabbedVersion);
   return grabbedVersion;
 }
+
+bool overloadCheck() {
+    if (current > 15) {
+        safeLoad = false;
+        return true;
+        timerReset(4);
+    } else {
+        return false;
+    }
+}
+
+void safetyNet() {
+  if (!safeLoad && timerCheck(4) >= loadCooldown*1000 && loadAttempt < loadConnectAttempts)  {
+        safeLoad = true;
+        loadAttempt++;
+    }
+}

timer.h

@@ -3,10 +3,11 @@
  * 1 - Reads button
  * 2 - Update Blynk app data
  * 3 - Heater trigger cooldown
+ * 4 - Overload cooldown
  */
 
 
-#define countDataAmount 4 //Number of timers
+#define countDataAmount 5 //Number of timers
 unsigned long countData[countDataAmount] = {0}; //Holds count information. (Adjust for numeber of timers needed.)