recovered LCD Menu Tutorial

VRomanov89 · May 13, 2017 · 0ae7a2b · 0ae7a2b
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diff --git a/.DS_Store b/.DS_Store
diff --git a/03. Arduino Tutorials/02. LCDMenuTutorial/LCDMenuProgramming/LCDMenuProgramming.ino b/03. Arduino Tutorials/02. LCDMenuTutorial/LCDMenuProgramming/LCDMenuProgramming.ino
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+#include <LiquidCrystal.h>
+LiquidCrystal lcd(6, 7, 5, 4, 3, 2);
+
+//Input & Button Logic
+const int numOfInputs = 4;
+const int inputPins[numOfInputs] = {8,9,10,11};
+int inputState[numOfInputs];
+int lastInputState[numOfInputs] = {LOW,LOW,LOW,LOW};
+bool inputFlags[numOfInputs] = {LOW,LOW,LOW,LOW};
+long lastDebounceTime[numOfInputs] = {0,0,0,0};
+long debounceDelay = 5;
+
+//LCD Menu Logic
+const int numOfScreens = 10;
+int currentScreen = 0;
+String screens[numOfScreens][2] = {{"Motor Voltage","Volts"}, {"Motor Current", "Amps"}, 
+{"Motor Rated HP","HP"},{"Overload Temp.","degC"}, {"Accel Time", "Secs"}, {"Restart Time","Mins"},
+{"Analog Out. Curr.","mA"},{"Input Temp.","degC"}, {"Run Time", "Hours"}, {"Start Times","times"}};
+int parameters[numOfScreens];
+
+void setup() {
+  for(int i = 0; i < numOfInputs; i++) {
+    pinMode(inputPins[i], INPUT);
+    digitalWrite(inputPins[i], HIGH); // pull-up 20k
+  }
+  //Serial.begin(9600);
+  lcd.begin(16, 2);
+}
+
+void loop() {
+  setInputFlags();
+  resolveInputFlags();
+}
+
+void setInputFlags() {
+  for(int i = 0; i < numOfInputs; i++) {
+    int reading = digitalRead(inputPins[i]);
+    if (reading != lastInputState[i]) {
+      lastDebounceTime[i] = millis();
+    }
+    if ((millis() - lastDebounceTime[i]) > debounceDelay) {
+      if (reading != inputState[i]) {
+        inputState[i] = reading;
+        if (inputState[i] == HIGH) {
+          inputFlags[i] = HIGH;
+        }
+      }
+    }
+    lastInputState[i] = reading;
+  }
+}
+
+void resolveInputFlags() {
+  for(int i = 0; i < numOfInputs; i++) {
+    if(inputFlags[i] == HIGH) {
+      inputAction(i);
+      inputFlags[i] = LOW;
+      printScreen();
+    }
+  }
+}
+
+void inputAction(int input) {
+  if(input == 0) {
+    if (currentScreen == 0) {
+      currentScreen = numOfScreens-1;
+    }else{
+      currentScreen--;
+    }
+  }else if(input == 1) {
+    if (currentScreen == numOfScreens-1) {
+      currentScreen = 0;
+    }else{
+      currentScreen++;
+    }
+  }else if(input == 2) {
+    parameterChange(0);
+  }else if(input == 3) {
+    parameterChange(1);
+  }
+}
+
+void parameterChange(int key) {
+  if(key == 0) {
+    parameters[currentScreen]++;
+  }else if(key == 1) {
+    parameters[currentScreen]--;
+  }
+}
+
+void printScreen() {
+  lcd.clear();
+  lcd.print(screens[currentScreen][0]);
+  lcd.setCursor(0,1);
+  lcd.print(parameters[currentScreen]);
+  lcd.print(" ");
+  lcd.print(screens[currentScreen][1]);
+}
+