Added Separate Timings for each Relay

The setting is saved on a file in:
/settings/relayTimings.json

Then during bootup, it's read and restored. 
Settings can be set via MQTT command on Topic: 
vesoer/*dev-id*/control/settings/relayTimers
using a json format. 
{ "b1":50, b2...}
where b1 is Bell 1, b2 Bell 2, etc..

bellEngine.hpp

@@ -2,11 +2,25 @@
 #include <vector>
 
 extern melody_attributes melody;
-extern uint16_t relayMask;
+
+// Define a structure to track active solenoids
+struct ActiveRelay {
+    uint8_t relayIndex;      // Index of the relay
+    uint64_t activationTime; // Activation start time
+    uint16_t duration;       // Duration for which it should remain active
+};
+
+// Array of durations for each relay (configure remotely)
+uint16_t relayDurations[16] = {90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90};
+// Vector to track active solenoids
+std::vector<ActiveRelay> activeRelays;
+
+
 
 void loop_playback(std::vector<uint16_t> &melody_steps);
+void relayControlTask(void *param);
 void itsHammerTime(uint16_t note);
-
+void turnOffRelays(uint64_t now);
 
 void bellEngine(void *parameter) {
 
@@ -26,6 +40,25 @@ void bellEngine(void *parameter) {
 
 }
 
+// Task to deactivate relays dynamically
+void relayControlTask(void *param) {
+    while (true) {
+        uint64_t now = millis();
+
+        // Iterate through active relays and deactivate those whose duration has elapsed
+        for (auto it = activeRelays.begin(); it != activeRelays.end();) {
+            if (now - it->activationTime >= it->duration) {
+                relays.digitalWrite(it->relayIndex, HIGH); // Deactivate the relay
+                it = activeRelays.erase(it);              // Remove from the active list
+            } else {
+                ++it; // Move to the next relay
+            }
+        }
+
+        vTaskDelay(pdMS_TO_TICKS(10)); // Check every 10ms
+    }
+}
+
 
 void loop_playback(std::vector<uint16_t> &melody_steps) {
 
@@ -41,28 +74,20 @@ void loop_playback(std::vector<uint16_t> &melody_steps) {
 
 		Serial.println("SINGLE LOOP OVER.");
     //if (!melody.isPlaying) break;                  // Stop playback only after completing the loop
-
 	}
-
 }
 
 
-void itsHammerTime(uint16_t note){
-
-	// THIS NEEDS REWORK, TO WAIT, DYNAMICLY PER RELAY
-	// MUST BE CONFIGURABLE REMOTELY
-
-	for (uint8_t i=0; i<16; i++) {
-			if (note & (1 << i)) {
-				relays.digitalWrite(i, LOW);
-			}
-		}
-
-	vTaskDelay(pdMS_TO_TICKS(relayDurations[0]));
-
-	for (uint8_t i=0; i<16; i++) {
-		relays.digitalWrite(i, HIGH);
-	}
+// Function to activate relays for a specific note
+void itsHammerTime(uint16_t note) {
+    uint64_t now = millis();
 
+    for (uint8_t i = 0; i < 16; i++) {
+        if (note & (1 << i)) { // Check if this relay needs to activate
+            relays.digitalWrite(i, LOW); // Activate the relay
 
+            // Add to the activeRelays list
+            activeRelays.push_back({i, now, relayDurations[i]});
+        }
+    }
 }