Added pop-off and corrected little issues

README

@@ -40,7 +40,7 @@ Logging
 
 The system can stream live data via the serial port for logging purposes.  Press the '#' key while connected via serial and the system will start streaming data in this format:
 
-mapCorrected,vntTargetPressure,vntPositionRemapped,tpsCorrected,rpmActual,pidOutput,n75precontrol,vntMinDc,vntMaxDc,mode,targetRatioKp,targetRatioKi,targetRatioKd,boostCalculatedP,boostCalculatedI,boostCalculatedD,temp1,auxOutput,millis( / 10)
+mapCorrected,vntTargetPressure,vntPositionRemapped,tpsCorrected,rpmActual,temp1,boostCalculatedP,boostCalculatedI,boostCalculatedD,pidOutput,n75precontrol,vntMinDc,vntMaxDc,rpmCorrected,mode,auxOutput,millis( / 10)
 
 The output data can be captured with a tool like 'screen' and logged to disk. It can then be opened directly in a spreadsheet program like LibreOffice or Excel for graphing purposes.
 
@@ -66,3 +66,10 @@ To set the baud rate on a fresh serial backpack plug it in via USB. USB doesn't
 # echo -e "\xFE\x39\x08" > /dev/ttyACM0
 
 The baud rate setting is stored on the LCD's EEPROM and will be briefly displayed at startup allowing you to verify the setting was saved successfully.
+
+Pop-Off
+=========
+
+The pop-off follows this logic: when I exceed a certain TPS value, the pop-off system is armed. If I drop below a certain TPS value, within a certain time limit, at a certain minimum MAP value, the pop-off (output #10) is activated for a certain amount of time.
+All the times and values is configurable in sketch.
+The pop-off in a diesel engine is usually unnecessary, but it could be an interesting addition if you happen to have problems with turbo surging, fluttering, or simply if you want a cool pop-off in your diesel car!

vnt_lda_myPID.ino

@@ -32,6 +32,9 @@ const unsigned char versionString[] PROGMEM  = "DMN-Vanbcguy Boost Ctrl v3.2.3";
 
 #define PIN_LCD 8
 
+// POP_OFF Pin
+#define PIN_POP_OFF 10
+
 #define LCD_BAUD_RATE 115200
 
 // Pins for the EGT MAX31855
@@ -43,6 +46,19 @@ ResponsiveAnalogRead map_read(PIN_MAP, false);  // no sleep on the MAP read; nee
 ResponsiveAnalogRead tps_read(PIN_TPS, true);
 ResponsiveAnalogRead rpm_read(0, true);
 
+// POP_OFF Configuration
+#define POP_OFF_ACTIVATION_TPS 800  // TPS must exceed this value to arm pop-off
+#define POP_OFF_RELEASE_TPS 400     // TPS must be released below this value to activate pop-off
+#define POP_OFF_RELEASE_TIME 1000   // maximum time (ms) to release TPS
+#define POP_OFF_BLOW_TIME 300       // pop-off length (ms)
+#define POP_OFF_MIN_BOOST 100       // minimum MAP value at which pop-off is permitted
+
+// POP_OFF Variables
+bool popOffArmed = false;
+unsigned long tpsReleaseStartTime = 0;
+unsigned long popOffStartTime = 0;
+bool popOffBlowing = false;
+
 // Set up the LCD pin
 SoftwareSerial lcd = SoftwareSerial(0, PIN_LCD);
 
@@ -507,6 +523,10 @@ void setup() {
   digitalWrite(PIN_TPS, LOW); // safety unconnected TPS
   digitalWrite(PIN_MAP, HIGH); // safety unconnected MAP
 
+  // POP_OFF Pin
+  pinMode(PIN_POP_OFF, OUTPUT);
+  digitalWrite(PIN_POP_OFF, LOW);
+
   // clear screen
   lcd.write(0xFE);
   lcd.write(0x58);
@@ -1189,9 +1209,18 @@ unsigned int execTimeRead = 0;
 unsigned int execTimeAct = 0;
 unsigned int execTimeLcd = 0;
 
+// streaming data's values
 void pageDataLogger(char key) {
   Serial.print(toKpaMAP(controls.mapCorrected), DEC);
   Serial.print(F(","));
+
+
+
+
+
+
+
+
   Serial.print(toKpaMAP(controls.vntTargetPressure), DEC);
   Serial.print(F(","));
   Serial.print(controls.vntPositionRemapped, DEC);
@@ -1894,12 +1923,10 @@ void displayPage(char page, char data) {
     case 3:
       pageMapEditor(0, data);
       visualizeActuator(28);
-
       break;
     case 4:
       pageMapEditor(1, data);
       visualizeActuator(28);
-
       break;
     case 5:
       pageMapEditor(2, data);
@@ -1938,6 +1965,34 @@ unsigned long mapLoop = 0;
 
 void loop() {
 
+//POP-OFF Loop
+  if (popOffBlowing) {
+    if (millis() - popOffStartTime >= POP_OFF_BLOW_TIME) {
+      digitalWrite(PIN_POP_OFF, LOW);
+      popOffBlowing = false;
+    }
+  } else {
+    if (tps_read.getValue() > POP_OFF_ACTIVATION_TPS) {
+      popOffArmed = true;
+      tpsReleaseStartTime = 0;
+    }
+
+    if (popOffArmed && tps_read.getValue() < POP_OFF_ACTIVATION_TPS && tpsReleaseStartTime == 0) {
+      tpsReleaseStartTime = millis();
+    }
+
+    bool tpsIsReleased = (tps_read.getValue() < POP_OFF_RELEASE_TPS);
+    bool releaseIsFast = (tpsReleaseStartTime != 0 && (millis() - tpsReleaseStartTime < POP_OFF_RELEASE_TIME));
+    bool turboHasBoost = (map_read.getValue() > POP_OFF_MIN_BOOST);
+
+    if (popOffArmed && tpsIsReleased && releaseIsFast && turboHasBoost) {
+      digitalWrite(PIN_POP_OFF, HIGH);
+      popOffBlowing = true;
+      popOffArmed = false;
+      popOffStartTime = millis();
+    }
+  }
+
   if ((millis() - mapLoop) >= MAP_DELAY) {
     readValuesMap();  // Read every loop; we're calculating an average to clean up noise.
     mapLoop = millis();
@@ -2028,18 +2083,4 @@ void loop() {
     displayLoop = millis();
     execTimeLcd = displayLoop - execTimeLcd;
   }
-}
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+}