commit 5a7ace4af47fd9b05a0e9b64b2c98fcd1381d2e3
Author: Patrick Haßel <git@patrick-hassel.de>
Date:   Tue Oct 8 17:37:02 2024 +0200

    Initial WIP

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..938b6ab
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/.pio/
+/.idea/
diff --git a/platformio.ini b/platformio.ini
new file mode 100644
index 0000000..aff9a4b
--- /dev/null
+++ b/platformio.ini
@@ -0,0 +1,5 @@
+[env:KnxEsp]
+platform = espressif32
+board = esp32dev
+framework = arduino
+lib_deps = https://github.com/thorsten-gehrig/arduino-tpuart-knx-user-forum
diff --git a/src/Group.h b/src/Group.h
new file mode 100644
index 0000000..1d36d5a
--- /dev/null
+++ b/src/Group.h
@@ -0,0 +1,28 @@
+#ifndef GROUP_H
+#define GROUP_H
+
+class Group {
+
+public:
+
+  uint8_t main = 0;
+
+  uint8_t mid = 0;
+
+  uint8_t sub = 0;
+
+  uint8_t dpt = 0;
+
+  static Group groups[500];
+
+  static void write(uint8_t main, uint8_t mid, uint8_t sub) {
+    for (auto group: groups) {
+      if (group.main == main && group.mid == mid && group.sub == sub) {
+        group.
+      }
+    }
+  }
+
+};
+
+#endif
diff --git a/src/main.cpp b/src/main.cpp
new file mode 100644
index 0000000..c718a1a
--- /dev/null
+++ b/src/main.cpp
@@ -0,0 +1,38 @@
+#include <Arduino.h>
+
+#include <KnxTpUart.h>
+
+#include "Group.h"
+
+KnxTpUart knx(&Serial1, "15.15.20");
+
+void knxSetup();
+
+void knxLoop();
+
+void setup() {
+  Serial.begin(112500);
+  delay(500);
+  Serial.print("\n\n\nStartup\n");
+  knxSetup();
+}
+
+void loop() {
+  knxLoop();
+}
+
+void knxSetup() {
+  Serial1.begin(19200, SERIAL_8E1);
+  knx.uartReset();
+  knx.setListenToBroadcasts(true);
+}
+
+void knxLoop() {
+  auto type = knx.serialEvent();
+  if (type != KNX_TELEGRAM) {
+    return;
+  }
+  KnxTelegram *telegram = knx.getReceivedTelegram();
+  Group::write(telegram->getTargetMainGroup(), telegram->getTargetMiddleGroup(), telegram->getTargetSubGroup(),telegram->getPayloadLength());
+  Serial.printf("%d/%d/%d\n", telegram->getTargetMainGroup(), telegram->getTargetMiddleGroup(), telegram->getTargetSubGroup());
+}