initial dump of all files already worked on

ESP/mqtt_test/mqtt_test.ino

@@ -0,0 +1,101 @@
+#include <WiFi.h>
+#include <PubSubClient.h>
+#include <Bounce2.h>
+
+const char* ssid = "Verbruggen";
+const char* password = "D93579084A";
+const char* mqttServer = "10.1.13.173";
+const int mqttPort = 1883;
+const char* mqttTopic = "test";
+
+const int gpioPin = 25;  // GPIO pin to check for shorting
+const unsigned long debounceDelay = 50;  // Debounce delay in milliseconds
+
+WiFiClient wifiClient;
+PubSubClient mqttClient(wifiClient);
+
+TaskHandle_t mqttTaskHandle = NULL;
+
+Bounce debouncer = Bounce();
+
+volatile int pressCounter = 0;
+
+void setupWiFi() {
+  WiFi.begin(ssid, password);
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(1000);
+    Serial.println("Connecting to WiFi...");
+  }
+  Serial.println("Connected to WiFi");
+}
+
+void callback(char* topic, byte* payload, unsigned int length) {
+  // This function is called when a message is received from the MQTT server
+  // Add your desired code here to handle the received message
+}
+
+void reconnectMQTT() {
+  while (!mqttClient.connected()) {
+    Serial.println("Connecting to MQTT server...");
+    if (mqttClient.connect("ESP32Client")) {
+      Serial.println("Connected to MQTT server");
+      mqttClient.subscribe(mqttTopic);
+    } else {
+      Serial.print("MQTT connection failed, rc=");
+      Serial.print(mqttClient.state());
+      Serial.println(" Retrying in 5 seconds...");
+      delay(5000);
+    }
+  }
+}
+
+void mqttTask(void* parameter) {
+  for (;;) {
+    ulTaskNotifyTake(pdTRUE, portMAX_DELAY);  // Wait for notification
+
+    if (mqttClient.connected()) {
+      String message = "GPIO pin shorted! Count: " + String(pressCounter);
+      mqttClient.publish(mqttTopic, message.c_str());
+      Serial.println("Message sent to MQTT server");
+      pressCounter++;
+    }
+  }
+}
+
+void setup() {
+  Serial.begin(115200);
+  pinMode(gpioPin, INPUT_PULLUP);
+
+  debouncer.attach(gpioPin);
+  debouncer.interval(debounceDelay);
+
+  setupWiFi();
+  mqttClient.setServer(mqttServer, mqttPort);
+  mqttClient.setCallback(callback);
+
+  xTaskCreatePinnedToCore(
+      mqttTask,        // Task function
+      "mqttTask",      // Task name
+      4096,            // Stack size (bytes)
+      NULL,            // Task parameter
+      1,               // Task priority
+      &mqttTaskHandle, // Task handle
+      1                // Task core (0 or 1)
+  );
+}
+
+void loop() {
+  if (!mqttClient.connected()) {
+    reconnectMQTT();
+  }
+  mqttClient.loop();
+
+  debouncer.update();
+  if (debouncer.fell()) {
+    BaseType_t xHigherPriorityTaskWoken = pdFALSE;
+    vTaskNotifyGiveFromISR(mqttTaskHandle, &xHigherPriorityTaskWoken);
+    if (xHigherPriorityTaskWoken == pdTRUE) {
+      portYIELD_FROM_ISR();
+    }
+  }
+}