Add PlatformIO configuration file

platformio.ini

@@ -0,0 +1,35 @@
+; 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
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env:esp32dev]
+platform = espressif32
+board = esp32dev
+framework = arduino
+monitor_speed = 115200
+monitor_filters = 
+    default
+    time
+
+; Build options
+build_flags = 
+    -DCORE_DEBUG_LEVEL=3
+    -DBOARD_HAS_PSRAM
+
+; Upload options
+upload_speed = 921600
+
+; Library dependencies
+lib_deps = 
+    ; BluetoothSerial is included in ESP32 core
+
+; Monitor options
+monitor_port = /dev/ttyUSB0  ; Change to your port (COM3 on Windows, etc.)
+monitor_rts = 0
+monitor_dtr = 0