recalibrated wheel sensor times

PyCoffeeNano/PyCoffeeNano.ino

@@ -370,7 +370,7 @@ void Press() {
   delay(100);
   Serial.write("pressing...\n");
   
-      // Reset Press before every coffee
+      // Slightly move the press in the opposite direction to make sure the motor's commutator engages
       digitalWrite(invertWheelPin, HIGH);
       delay(100);
       digitalWrite(invertWheelPin, LOW);
@@ -404,9 +404,9 @@ void unPress() {
   delay(100);
   Serial.write("unPressing...\n");
 
-      // Reset Press before every coffee
+      // Slightly move the press in the opposite direction to make sure the motor's commutator engages
       digitalWrite(wheelPin, HIGH);
-      delay(150);
+      delay(100);
       digitalWrite(wheelPin, LOW);
       
   digitalWrite(invertWheelPin, HIGH);
@@ -503,6 +503,11 @@ void makeCoffee() {
   }
 
   delay(1000); // this delay is mandatory to prevent powder spillage caused by grinder inertia.
+
+  // Slightly move the press in the opposite direction to make sure the press sensor makes contact
+      digitalWrite(wheelPin, HIGH);
+      delay(1000);
+      digitalWrite(wheelPin, LOW);
   unPress(); // unpressing the press to reset the machine
   
   if (unrecoverableErr == 1) {
@@ -531,7 +536,7 @@ void makeCoffee() {
     digitalWrite(boilerPin, LOW);
   }
   delay(3000); // Allow pressure to wane
-  
+
   unPress(); // unpressing the press to reset the machine
   if (unrecoverableErr == 1) {
     break;