From 8f435970bdd36f3aea80eabf8d4750610f58f0d3 Mon Sep 17 00:00:00 2001
From: Danny Oh <sdoh55@gmail.com>
Date: Mon, 12 Jun 2023 09:18:39 -0500
Subject: [PATCH] Initial commit

---
 prototype/prototype.ino | 128 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 128 insertions(+)
 create mode 100644 prototype/prototype.ino

diff --git a/prototype/prototype.ino b/prototype/prototype.ino
new file mode 100644
index 0000000..feab29d
--- /dev/null
+++ b/prototype/prototype.ino
@@ -0,0 +1,128 @@
+#include <LiquidCrystal_I2C.h>
+#include <millisDelay.h>
+#include <IRremote.h>
+
+LiquidCrystal_I2C lcd(0x27,16,2);  // set the LCD address to 0x3F for a 16 chars and 2 line display
+millisDelay timer;
+
+const bool DEBUG = true;
+// Define IR receiver pin
+const int IR_RECEIVE_PIN = 2;
+// LCD
+const int LCD_COLS = 16;
+const int LCD_ROWS = 2;
+
+String getMinutes() {
+  unsigned long minutes = timer.remaining() / (60 * 1000l);
+  if (minutes < 10) {
+    return "0" + String(minutes);
+  }
+  return String(minutes);
+}
+
+String getSeconds() {
+  unsigned long seconds = timer.remaining() % (60 * 1000l) / 1000l;
+  if (seconds < 10) {
+    return "0" + String(seconds);
+  }
+  return String(seconds);
+}
+
+void lcdUpdate() {
+  if (timer.isRunning()) {
+    lcd.setCursor(0, 1);
+    lcd.print(String(getMinutes()) + ":" + String(getSeconds()));
+  } else {
+    lcd.setCursor(0, 1);
+    lcd.print("No Timer Set");
+  }
+}
+
+void lcdClearRow(int line) {
+  for (int i = 0; i < LCD_COLS; i++) {
+    lcd.setCursor(i, line);
+    lcd.print(' ');
+  }
+}
+
+void powerOn() {
+  lcdClearRow(0);
+  lcd.setCursor(0, 0);
+  lcd.print("Power ON");
+}
+
+void powerOff() {
+  lcdClearRow(0);
+  lcd.setCursor(0, 0);
+  lcd.print("Power OFF");
+}
+
+void startTimer(int minutes) {
+  if (timer.isRunning()) {
+    timer.stop();
+  } else {
+    timer.start(minutes * 60 * 1000l);
+    lcdClearRow(1);
+  }
+}
+
+void addTimerMinutes(int minutes) {
+  if (timer.isRunning()) {
+    long millis = (minutes * 60 * 1000l);
+    if (millis < 0 && timer.remaining() <= abs(millis)) {
+      timer.finish();
+    } else {
+      timer.start(timer.remaining() + millis);
+    }
+  }
+}
+
+void setup() {
+  Serial.begin(9600);
+  
+  lcd.init();
+  lcd.clear();         
+  lcd.backlight();      // Make sure backlight is on
+  lcd.setCursor(0, 0);
+  lcd.print("Power OFF");
+  lcd.setCursor(0, 1);
+  lcd.print("No Timer Set");
+
+  // Initialize the IR receiver
+  IrReceiver.begin(IR_RECEIVE_PIN, true);
+
+  startTimer(30);
+}
+
+void loop() {
+  lcdUpdate();
+
+  if (IrReceiver.decode()) {
+    if (DEBUG) {
+      Serial.println(IrReceiver.decodedIRData.decodedRawData, HEX); // Print "old" raw data
+      // Print IR signal info
+      IrReceiver.printIRResultShort(&Serial); // Print complete received data in one line
+      IrReceiver.printIRSendUsage(&Serial);   // Print the statement required to send this data
+      // Enable IR receiver for the next signal
+    }
+
+    switch (IrReceiver.decodedIRData.decodedRawData) {
+      case 0xEE11CD32:  // up
+        addTimerMinutes(10);
+        break;
+      case 0xEB14CD32:  // down
+        addTimerMinutes(-10);
+        break;
+      case 0x9C63CD32:  // sleep timer
+        powerOn();
+        startTimer(30);
+      default:
+        break;
+    }
+    IrReceiver.resume();
+  }
+
+  if (timer.justFinished()) {
+    powerOff();
+  }
+}
\ No newline at end of file