add build script

build.sh

@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+
+set -e
+
+# ========= CONFIG =========
+PORT="/dev/ttyACM0"
+
+FQBN="esp32:esp32:esp32s3:\
+UploadSpeed=921600,\
+USBMode=hwcdc,\
+CDCOnBoot=default,\
+MSCOnBoot=default,\
+DFUOnBoot=default,\
+UploadMode=default,\
+CPUFreq=240,\
+FlashMode=qio,\
+FlashSize=16M,\
+PartitionScheme=fatflash,\
+DebugLevel=none,\
+PSRAM=opi,\
+LoopCore=1,\
+EventsCore=1,\
+EraseFlash=none,\
+JTAGAdapter=default,\
+ZigbeeMode=default"
+
+# ========= FLAGS =========
+UPLOAD=false
+SKETCH_PATH="./firmware"
+
+while [[ $# -gt 0 ]]; do
+    case "$1" in
+        -u|--upload)
+            UPLOAD=true
+            shift
+            ;;
+        *)
+            SKETCH_PATH="$1"
+            shift
+            ;;
+    esac
+done
+
+# ========= BUILD =========
+echo "Compiling sketch..."
+
+arduino-cli compile \
+    --fqbn "$FQBN" \
+    "$SKETCH_PATH"
+
+echo "Compile successful."
+
+# ========= UPLOAD =========
+if [ "$UPLOAD" = true ]; then
+    echo "Uploading to $PORT..."
+
+    arduino-cli upload \
+        -p "$PORT" \
+        --fqbn "$FQBN" \
+        "$SKETCH_PATH"
+
+    echo "Upload complete."
+fi