Add 'powerntfy.ino'

powerntfy.ino

@@ -0,0 +1,108 @@
+#include <ESP8266WiFi.h>
+#include <ESP8266HTTPClient.h>
+#include <WiFiClientSecure.h>  // Include for secure connections
+
+// Replace with your network credentials
+const char* ssid = "SSIDHERE";
+const char* password = "PASSWORDHERE";
+
+// Replace with your ntfy server URL
+const String ntfyServerUrl = "https://ntfy.sh/TOPIC";
+
+// GPIO pin connected to optocoupler output
+const int powerStatusPin = 5;  // GPIO5 is D1
+
+const int ledPin = 2;  // GPIO2 is the blue onboard LED
+
+// Variable to store the previous state of the power status
+bool previousPowerStatus = false;  // Assume power is off initially
+
+WiFiClientSecure wifiClient;  // Create a WiFiClientSecure object
+
+void setup() {
+  // Start serial communication
+  Serial.begin(115200);
+
+  // Initialize the GPIO pin as an input with pull-up
+  pinMode(powerStatusPin, INPUT_PULLUP);
+
+  // Initialize the LED pin as an output
+  pinMode(ledPin, OUTPUT);
+  
+  // Connect to Wi-Fi - The last 'true' indicates hidden SSID
+  WiFi.begin(ssid, password, 0, NULL, true);
+
+  // Connect to Wi-Fi, using non-hidden SSID
+//  WiFi.begin(ssid, password);
+  Serial.print("Connecting to Wi-Fi");
+
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+  }
+
+  Serial.println();
+  Serial.println("Connected to Wi-Fi");
+  Serial.print("IP address: ");
+  Serial.println(WiFi.localIP());
+}
+
+void loop() {
+  // Blink the blue LED every second
+  digitalWrite(ledPin, LOW);   // Turn the LED on (LED is active low)
+  delay(500);                  // Wait for half a second
+  digitalWrite(ledPin, HIGH);  // Turn the LED off
+  delay(500);                  // Wait for half a second
+
+  // Read the current power status
+  bool currentPowerStatus = digitalRead(powerStatusPin);
+
+  // If power status has changed
+  if (currentPowerStatus != previousPowerStatus) {
+    if (currentPowerStatus == LOW) {  // Assume LOW means power is on
+      // Power restored
+      Serial.println("Power Restored.");
+      sendNotification("Power is on! Control MDF is back on mains power.");
+    } else {
+      // Power outage detected
+      Serial.println("Power Outage Detected!");
+      sendNotification("Power is off! Control MDF is on battery power.");
+    }
+
+    // Update the previous power status
+    previousPowerStatus = currentPowerStatus;
+  }
+
+  // Add a small delay to prevent rapid state changes
+  delay(1000);
+}
+
+// Function to send a notification to ntfy
+void sendNotification(String message) {
+  if (WiFi.status() == WL_CONNECTED) {  // Check Wi-Fi connection
+    HTTPClient http;
+
+    // Allow the use of insecure connections if needed (for testing)
+    wifiClient.setInsecure();  // Use this for testing; in production, use valid certificates
+
+    // Prepare HTTP POST request with WiFiClientSecure
+    http.begin(wifiClient, ntfyServerUrl);  // Pass the WiFiClientSecure object
+    http.addHeader("Content-Type", "text/plain");
+
+    // Print the message being sent for debugging
+    Serial.print("Sending notification: ");
+    Serial.println(message);
+
+    // Send the message
+    int httpResponseCode = http.POST(message);
+
+    // Print response code for debugging
+    Serial.print("HTTP Response code: ");
+    Serial.println(httpResponseCode);
+
+    // Close the connection
+    http.end();
+  } else {
+    Serial.println("Wi-Fi Disconnected. Cannot send notification.");
+  }
+}