Add initial device status service

DeviceStatus/Arduino/Main/Main.ino

@@ -0,0 +1,162 @@
+#include <WiFiNINA.h>
+#include <ArduinoMqttClient.h>
+
+#include "arduino_secrets.h"
+
+char ssid[] = SECRET_SSID;
+char pass[] = SECRET_PASS;
+
+WiFiClient wifiClient;
+MqttClient mqttClient(wifiClient);
+
+const char broker[] = "172.23.10.51";
+int port = 1883;
+
+const long interval = 500;  // Interval for sending messages (milliseconds)
+unsigned long previousMilliseconds = 0;
+
+int washerPin = 0;
+int dryerPin = 1;
+
+int lastWasherValue = -1;
+int lastDryerValue = -1;
+
+const char washerTopic[] = "washer";
+const char dryerTopic[] = "dryer";
+
+void connectNetwork() {
+  Serial.print("Attempting to connect to WPA SSID: ");
+  Serial.println(ssid);
+
+  while (WiFi.begin(ssid, pass) != WL_CONNECTED) {
+    Serial.print(".");
+    delay(5000);
+  }
+
+  Serial.println("Connected to the network");
+  Serial.println();
+}
+
+bool checkNetwork() {
+  if (!WiFi.status() == WL_DISCONNECTED) {
+    WiFi.disconnect();
+
+    Serial.print("Attempting to reconnect to WPA SSID: ");
+    Serial.println(ssid);
+
+    if (!WiFi.begin(ssid, pass) != WL_CONNECTED) {
+      Serial.println("Network reconnection failed");
+      return false;
+    }
+
+    Serial.println("Network reconnected");
+    return true;
+  }
+
+  return true;
+}
+
+void connectBroker() {
+  Serial.print("Attempting to connect to the MQTT broker: ");
+  Serial.println(broker);
+
+  while (!mqttClient.connect(broker, port)) {
+    Serial.print(".");
+    delay(5000);
+  }
+
+  Serial.print("Connected to the MQTT broker: ");
+  Serial.println(broker);
+}
+
+bool checkBroker() {
+  if (!mqttClient.connected()) {
+    Serial.print("Attempting to reconnect to the MQTT broker: ");
+    Serial.println(broker);
+
+    if (!mqttClient.connect(broker, port)) {
+      Serial.println("Broker reconnection failed");
+      return false;
+    }
+
+    Serial.println("Broker reconnected");
+
+    outputValue(washerTopic, lastWasherValue);
+    outputValue(dryerTopic, lastDryerValue);
+
+    return true;
+  }
+
+  return true;
+}
+
+void setupDevices() {
+  pinMode(washerPin, INPUT_PULLUP);
+  pinMode(dryerPin, INPUT_PULLUP);
+
+  lastWasherValue = digitalRead(washerPin);
+  lastDryerValue = digitalRead(dryerPin);
+
+  outputValue(washerTopic, lastWasherValue);
+  outputValue(dryerTopic, lastDryerValue);
+}
+
+void outputValue(char topic[], int value) {
+  Serial.print("Sending message to topic: ");
+  Serial.print(topic);
+  Serial.print(" ");
+  Serial.println(value == 1 ? 0 : 1);
+
+  mqttClient.beginMessage(topic);
+  mqttClient.print(value == 1 ? 0 : 1);
+  mqttClient.endMessage();
+}
+
+void setup() {
+  Serial.begin(9600);
+
+  while (!Serial) {
+    ;  // wait for serial port to connect. Needed for native USB port only
+  }
+
+  connectNetwork();
+  connectBroker();
+
+  setupDevices();
+
+  Serial.println();
+}
+
+void loop() {
+  mqttClient.poll();
+
+  unsigned long currentMilliseconds = millis();
+
+  if (currentMilliseconds - previousMilliseconds >= interval) {
+    previousMilliseconds = currentMilliseconds;
+
+    if (!checkNetwork()) {
+      return;
+    }
+
+    if (!checkBroker()) {
+      return;
+    }
+
+    int washerValue = digitalRead(washerPin);
+
+    if (washerValue != lastWasherValue) {
+      lastWasherValue = washerValue;
+
+      outputValue(washerTopic, washerValue);
+    }
+
+    int dryerValue = digitalRead(dryerPin);
+
+    if (dryerValue != lastDryerValue) {
+      lastDryerValue = dryerValue;
+
+      outputValue(dryerTopic, dryerValue);
+    }
+  }
+}

DeviceStatus/Arduino/Main/arduino_secrets.h

@@ -0,0 +1,2 @@
+#define SECRET_SSID ""
+#define SECRET_PASS ""