2026-04-2502

platformio.ini

@@ -8,7 +8,7 @@
 ; Please visit documentation for the other options and examples
 ; https://docs.platformio.org/page/projectconf.html
 
-[env:esp32]
+[env]
 platform = espressif32
 board = nodemcu-32s
 framework = arduino
@@ -21,3 +21,19 @@ monitor_filters = time
 lib_deps =
     # The exact version
   sensirion/Sensirion I2C SCD4x @ 1.1.0
+  adafruit/Adafruit NeoPixel @ 1.15.4
+  knolleary/PubSubClient @ 2.8
+
+[env:debug]     ; Entwicklungssystem
+build_flags = ${env.build_flags}
+    -DDEBUG=1
+    -DGRENZWERT=3.70
+    -DSTASSID=\"MagentaWLAN-RGDO\"
+    -DSTAPSK=\"93329248424922704583\"
+    -DGATEWAY=\"192.168.127.1\"
+    -DDNS=\"192.168.127.1\"
+    -DSECONDARDNS=\"8.8.8.8\"
+    -DMYIP=\"192.168.127.52\"
+    -DSUBNET=\"255.255.255.0\"
+    -Dmqtt_server=\"192.168.127.251\"
+    -DMQTTPORT=1883

src/main.cpp

@@ -36,8 +36,10 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 #include <Arduino.h>
+#include <WiFi.h>
 #include <SensirionI2cScd4x.h>
 #include <Wire.h>
+#include <PubSubClient.h>
 
 // macro definitions
 // make sure that we use the proper definition of NO_ERROR
@@ -46,23 +48,90 @@
 #endif
 #define NO_ERROR 0
 
+
+WiFiClient espClient;
+PubSubClient client(espClient);
+
 SensirionI2cScd4x sensor;
 
 static char errorMessage[64];
 static int16_t error;
 
+IPAddress ip;
+IPAddress gateway;
+IPAddress subnet;
+IPAddress dns; // DNS-Server
+IPAddress secondarDNS;
+
+
 void PrintUint64(uint64_t& value) {
     Serial.print("0x");
     Serial.print((uint32_t)(value >> 32), HEX);
     Serial.print((uint32_t)(value & 0xFFFFFFFF), HEX);
 }
 
+void setup_wifi() {
+  
+  long ErrCount = 0;
+
+  if (!ip.fromString(MYIP)) { // try to parse into the IPAddress
+    Serial.println("UnParsable IP");
+    }
+  if (!dns.fromString(DNS)) { // try to parse into the IPAddress
+    Serial.println("UnParsable DNS");
+    }
+  if (!gateway.fromString(GATEWAY)) { // try to parse into the IPAddress
+    Serial.println("UnParsable GATEWAY");
+    }
+  if (!secondarDNS.fromString(SECONDARDNS)) { // try to parse into the IPAddress
+    Serial.println("UnParsable GATEWAY");
+    }
+  if (!subnet.fromString(SUBNET)) { // try to parse into the IPAddress
+    Serial.println("UnParsable GATEWAY");
+    }
+
+
+  delay(10);
+  // We start by connecting to a WiFi network
+  Serial.println();
+  Serial.print("Connecting to ");
+  Serial.print(STASSID);
+  Serial.print(" ");
+
+  //WiFi.forceSleepWake();
+  delay( 1 );
+
+  #ifndef DHCP
+    WiFi.config( ip, gateway, subnet, dns, secondarDNS);
+  #endif
+  WiFi.begin(STASSID, STAPSK);
+
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+    ErrCount ++;
+    if (ErrCount >= 30){
+      delay(500);
+      ESP.restart();
+      }
+    }
+  //Serial.println(" WiFi connected");
+  client.setServer(mqtt_server, MQTTPORT);
+  client.setCallback(callback);
+  Serial.print("IP address: \t");
+  Serial.println(WiFi.localIP());
+
+}
+
+
+
 void setup() {
 
     Serial.begin(115200);
     while (!Serial) {
         delay(100);
     }
+    
     Wire.begin();
     sensor.begin(Wire, SCD41_I2C_ADDR_62);