chore(memory): clarified some comments, moved relay/pid compute() cal…

…l to a different location

koffie/koffie.ino

@@ -92,7 +92,7 @@
   float const PRESSURE_SENSOR_INPUT_PIN{A3};
   double const RELAY_CONTROL_OUTPUT_PIN{11};       // PWM compatible output @ 498 Hz (CHECK BEFORE CHANGING)
   const int PRESSURE_TRANSDUCER_MAX_PSI = 60.0;    // Change this value to the maximum value your pressure sensor can read in PSI. Ex: 30 PSI sensor = 30.0
-  const double ATMOSPHERIC_OFFSET{0.0};
+  const double ATMOSPHERIC_OFFSET{0.0};            // Example offset of -0.17 (measured against physical gauge)
 
   /*
   * These values control the overall "tuning" of the PID. 
@@ -453,19 +453,19 @@
 
     MEASUREMENT_INPUT = convertedReading;
 
-    // COMPUTE PID LEVELS
-    pidControl.Compute();
-
-    // APPLY PID COMPUTE TO RELAY
-    relay.loop();
-
     if (MEASUREMENT_INPUT > SETPOINT) {
       relay.setDutyCyclePercent(0);
       relay.setRelayPosition(relayPositionOpen);                // change relayPositionOpen to relayPositionClosed if your relay is normally open
     } else {
       relay.setDutyCyclePercent(CONTROL_OUTPUT / 255.0);        // Relay library only accepts values between 0 and 1
     }
 
+    // COMPUTE PID LEVELS
+    pidControl.Compute();
+
+    // APPLY PID COMPUTE TO RELAY
+    relay.loop();
+
     // Serial.print(F("SETPOINT: "));
     // Serial.print(SETPOINT);                                   // only displays in BAR in serial monitor
     // Serial.print(F("  |  MEASUREMENT_INPUT: "));
@@ -591,10 +591,11 @@
     display.setTextColor(WHITE, BLACK);
 
 
-      // *************************************************************************************
-      //  If you want to display a digital readout of the current (unfiltered) pressure,
+      // *********************************************************************************************************
+      //  If you want to display a digital readout of the current (unfiltered) pressure in MANU mode,
       //  uncomment the lines beneath and the closing bracket at line 629.
-      // *************************************************************************************
+      // *********************************************************************************************************
+      //
       // if (CURRENT_MODE == 25) {
       //   display.setCursor(70, 28);
       //   display.print(F("TARG "));