improve board config setup

build_and_flash.sh

@@ -2,6 +2,7 @@
 
 # Build and Flash Script for Pico RP2350
 # This script compiles the project and flashes it to the board
+# Board selection is done in board_config.h (not via CMake)
 
 set -e  # Exit on error
 
@@ -15,11 +16,17 @@ echo "  Pico RP2350 Build and Flash Script"
 echo "=========================================="
 echo ""
 
+# Detect which board is selected in board_config.h
+SELECTED_BOARD=$(grep "^#define BOARD_" "${PROJECT_DIR}/board_config.h" | grep -v "^//" | head -1 | awk '{print $2}')
+echo "Selected board: ${SELECTED_BOARD}"
+echo "(Change in board_config.h to build for different board)"
+echo ""
+
 # Check if build directory exists and has build.ninja
 if [ ! -f "${BUILD_DIR}/build.ninja" ]; then
     echo "⚠ Build not configured. Running cmake..."
     cd "${PROJECT_DIR}"
-    cmake -B build -G Ninja -DPICO_BOARD=adafruit_feather_rp2350
+    cmake -B build -G Ninja
     echo ""
 fi