split into features

esp32_MachineNotify.ino

@@ -1,13 +1,30 @@
+#include <Wire.h>
+
+// Feature Configuration - Comment out to disable
+#define ENABLE_SENSORS
+#define ENABLE_DISPLAY
+#define ENABLE_WIFI
+#define ENABLE_NOTIFICATIONS
+
+#ifdef ENABLE_WIFI
 #include <WiFi.h>
 #include <HTTPClient.h>
-#include <Wire.h>
+#endif
+
+#ifdef ENABLE_SENSORS
 #include <BH1750.h>
+#endif
+
+#ifdef ENABLE_DISPLAY
 #include <Adafruit_GFX.h>
 #include <Adafruit_SSD1306.h>
+#endif
 
 // WiFi credentials
+#ifdef ENABLE_WIFI
 const char* WIFI_SSID = "YOUR_WIFI_SSID";
 const char* WIFI_PASSWORD = "YOUR_WIFI_PASSWORD";
+#endif
 
 // ntfy.sh topic
 const char* NTFY_TOPIC = "YOUR_NTFY_TOPIC";
@@ -20,10 +37,14 @@ const int VIBRATION_PIN = 4;
 #define SCREEN_HEIGHT 64
 #define OLED_RESET -1 // Reset pin # (or -1 if sharing Arduino reset pin)
 #define SCREEN_ADDRESS 0x3C
+#ifdef ENABLE_DISPLAY
 Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
+#endif
 
 // Light sensor
+#ifdef ENABLE_SENSORS
 BH1750 lightMeter;
+#endif
 
 // Thresholds
 const float LIGHT_ACTIVATION_THRESHOLD = 200.0;
@@ -42,26 +63,37 @@ unsigned long lightHighStartTime = 0;
 unsigned long lightLowStartTime = 0;
 
 // OLED display data
+#ifdef ENABLE_DISPLAY
 String displayData[4];
 int currentDisplayLine = 0;
 unsigned long lastDisplayScrollTime = 0;
-const unsigned long DISPLAY_SCROLL_INTERVAL = 2000; // 2 seconds
+const unsigned long DISPLAY_SCROLL_INTERVAL = 1000; // 1000 = 1 second
+#endif
+
+// Notification queue
+String queuedNotification = "";
+String queuedTitle = "";
+String queuedPriority = "";
 
 void setup() {
   Serial.begin(115200);
 
+  #if defined(ENABLE_SENSORS) || defined(ENABLE_DISPLAY)
+  Wire.begin();
+  #endif
+
+  #ifdef ENABLE_SENSORS
   // Initialize vibration sensor pin
   pinMode(VIBRATION_PIN, INPUT);
 
-  // Initialize I2C bus
-  Wire.begin();
-
   // Initialize light sensor
   if (!lightMeter.begin(BH1750::CONTINUOUS_HIGH_RES_MODE)) {
     Serial.println(F("Could not find a valid BH1750 sensor, check wiring!"));
     while (1) { }
   }
+  #endif
 
+  #ifdef ENABLE_DISPLAY
   // Initialize OLED display
   if (!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
     Serial.println(F("SSD1306 allocation failed"));
@@ -73,7 +105,9 @@ void setup() {
   display.setCursor(0, 0);
   display.println(F("Initializing..."));
   display.display();
+  #endif
 
+  #ifdef ENABLE_WIFI
   // Connect to WiFi
   Serial.print("Connecting to ");
   Serial.println(WIFI_SSID);
@@ -86,23 +120,45 @@ void setup() {
   Serial.println("WiFi connected");
   Serial.println("IP address: ");
   Serial.println(WiFi.localIP());
+  #endif
 
+  #if defined(ENABLE_DISPLAY) && defined(ENABLE_WIFI)
   display.clearDisplay();
   display.setCursor(0,0);
   display.println("WiFi Connected");
   display.display();
   delay(1000);
+  #endif
 }
 
-void sendNotification(String message);
+bool sendNotification(String message, String title, String priority);
 void updateDisplay();
 
 void loop() {
+  #ifdef ENABLE_NOTIFICATIONS
+  // Try to send any queued notification
+  if (queuedNotification != "") {
+    if (sendNotification(queuedNotification, queuedTitle, queuedPriority)) {
+      Serial.println("Successfully sent queued notification.");
+      queuedNotification = ""; // Clear queue
+      queuedTitle = "";
+      queuedPriority = "";
+    } else {
+      // Failed, will retry on next loop
+    }
+  }
+  #endif
+
   unsigned long currentTime = millis();
 
   // Sensor readings
+  #ifdef ENABLE_SENSORS
   bool currentVibrationState = (digitalRead(VIBRATION_PIN) == LOW);
   float currentLightLevel = lightMeter.readLightLevel();
+  #else
+  bool currentVibrationState = false;
+  float currentLightLevel = 0.0;
+  #endif
 
   // Vibration state change logic
   if (currentVibrationState && !isVibrationActive) { // Vibration is active (LOW)
@@ -156,13 +212,31 @@ void loop() {
   isDeviceActive = isVibrationActive || isLightActive;
 
   if (isDeviceActive != previousDeviceState) {
+    String message;
+    String title;
+    String priority;
     if (isDeviceActive) {
-      sendNotification("Washing machine cycle started.");
+      message = "Washing machine cycle started.";
+      title = "Machine START";
+      priority = "default";
     } else {
-      sendNotification("Washing machine cycle finished.");
-    }
+      message = "Washing machine cycle finished.";
+      title = "Machine END";
+      priority = "high";
     }
 
+    #ifdef ENABLE_NOTIFICATIONS
+    if (!sendNotification(message, title, priority)) {
+      queuedNotification = message; // Failed to send, queue it (overwrites any older one)
+      queuedTitle = title;
+      queuedPriority = priority;
+    }
+    #else
+    Serial.println("Notification (Disabled): " + title + " - " + message);
+    #endif
+  }
+
+  #ifdef ENABLE_DISPLAY
   // Update display data
   displayData[0] = "Vibration: " + String(isVibrationActive ? "ON" : "OFF");
   displayData[1] = "Light: " + String(currentLightLevel) + " lx";
@@ -171,32 +245,43 @@ void loop() {
 
   // Update display
   updateDisplay();
+  #endif
 }
 
-void sendNotification(String message) {
+bool sendNotification(String message, String title, String priority) {
+  #ifdef ENABLE_WIFI
   if (WiFi.status() == WL_CONNECTED) {
     HTTPClient http;
     String url = "http://ntfy.sh/" + String(NTFY_TOPIC);
     http.begin(url);
     http.addHeader("Content-Type", "text/plain");
+    http.addHeader("Title", title);
+    http.addHeader("Priority", priority);
 
     int httpResponseCode = http.POST(message);
+    http.end();
 
     if (httpResponseCode > 0) {
       Serial.print("HTTP Response code: ");
       Serial.println(httpResponseCode);
+      return true;
     } else {
       Serial.print("Error on sending POST: ");
       Serial.println(httpResponseCode);
+      return false;
     }
-
-    http.end();
   } else {
     Serial.println("WiFi Disconnected. Cannot send notification.");
+    return false;
   }
+  #else
+  Serial.println("WiFi Disabled. Notification skipped.");
+  return true;
+  #endif
 }
 
 void updateDisplay() {
+  #ifdef ENABLE_DISPLAY
   unsigned long currentTime = millis();
 
   // Scroll logic
@@ -216,4 +301,5 @@ void updateDisplay() {
   }
 
   display.display();
+  #endif
 }