From ebf8dc2f5ae06d89380e507faf3a883f79ec965b Mon Sep 17 00:00:00 2001
From: Dimitris <dimitrios.kouros@kouros-online.de>
Date: Wed, 13 May 2026 15:56:42 +0200
Subject: [PATCH] Kefalovryso Master

---
 .gitignore     |  6 ++++
 platformio.ini | 24 +++++++++++++++
 src/main.cpp   | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 112 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 platformio.ini
 create mode 100644 src/main.cpp

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..beaaf8a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,6 @@
+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch
+.vscode/extensions.json
diff --git a/platformio.ini b/platformio.ini
new file mode 100644
index 0000000..5f7b76e
--- /dev/null
+++ b/platformio.ini
@@ -0,0 +1,24 @@
+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Temperatur messen und an MQTT senden
+
+[env:dfrobot_firebeetle2_esp32e]
+platform = espressif32
+board = dfrobot_firebeetle2_esp32e
+framework = arduino
+monitor_speed = 115200
+monitor_filters = 
+	default
+	time
+lib_deps = 
+	bblanchon/ArduinoJson@^7.2.0
+	ropg/ezTime@^0.8.3
+	hasenradball/AM2302-Sensor@^1.4.0
+	symlink:///home/kouros/work/workspace/micro/libraries/LocalNetworkManager
+	tzapu/WiFiManager@^2.0.17
+	256dpi/MQTT@^2.5.2
diff --git a/src/main.cpp b/src/main.cpp
new file mode 100644
index 0000000..16ce5ad
--- /dev/null
+++ b/src/main.cpp
@@ -0,0 +1,82 @@
+#include <WiFi.h>
+#include <AM2302-Sensor.h>
+#include "LocalNetworkManager.h"
+
+#define uS_TO_S_FACTOR 1000000ULL /* Conversion factor for micro seconds to seconds */
+#define SLEEP 300  // Sleep time in seconds
+
+constexpr unsigned int SENSOR_PIN{ D3 };
+AM2302::AM2302_Sensor am2302{ SENSOR_PIN };
+
+typedef struct {
+  char dateTime[9];
+  int humidity;
+  float temperature;
+  float voltage;
+} sensor_data_t;
+
+sensor_data_t sensorData;
+
+WiFiClient wifi;
+
+LocalNetworkManager nm;
+
+
+void prepareMqtt() {
+  nm.connectMqtt();
+}
+
+void initAM2302() {
+  if (!am2302.begin()) {
+    Serial.println("Could not find a valid AM2302 sensor, check wiring!");
+    while (100);
+  }
+}
+
+void readSensor() {
+  am2302.read();
+  // Read temperature as Celsius (the default)
+  float temp = am2302.get_Temperature();
+  // Read humidity
+  float hum = am2302.get_Humidity();
+  Serial.printf("Sensor: Temperature: %.1f Humidity: %.1f", temp, hum);
+  Serial.println();
+  sensorData.temperature = temp;
+  sensorData.humidity = hum;
+  if (temp > 0) {
+    char tempString[8];
+    dtostrf(sensorData.temperature, 1, 1, tempString);
+    nm.publishMessage("kefalovryso/temperature", tempString);
+    dtostrf(sensorData.humidity, 1, 1, tempString);
+    nm.publishMessage("kefalovryso/humidity", tempString);
+  }
+}
+
+void setup() {
+  Serial.begin(115200); // Initialize the serial port
+
+  Serial.println("");
+
+  // Init AM3202 Sensor
+  initAM2302();
+
+  //Set device in AP_STA mode
+  WiFi.mode(WIFI_AP_STA);
+  if (nm.LocalNetworkManagerInit()) {
+    if (WiFi.status() == WL_CONNECTED) {
+      nm.initNTPTime("CET");
+      prepareMqtt();
+    }
+  }
+  readSensor();
+  delay(200);
+  Serial.printf("Deep Sleep for %d seconds", SLEEP);
+  esp_sleep_enable_timer_wakeup((uint64_t)SLEEP * uS_TO_S_FACTOR);
+  esp_deep_sleep_start();
+}
+
+void loop() {
+
+  
+}
+