diff --git a/arch/stm32/stm32.ini b/arch/stm32/stm32.ini
index a1bdc6658..7280fc3f8 100644
--- a/arch/stm32/stm32.ini
+++ b/arch/stm32/stm32.ini
@@ -2,7 +2,9 @@
 extends = arduino_base
 platform = ststm32
 platform_packages = platformio/framework-arduinoststm32@https://github.com/stm32duino/Arduino_Core_STM32.git#2.9.0
-
+extra_scripts =
+  ${env.extra_scripts}
+  post:extra_scripts/extra_stm32.py
 build_type = release
 
 ;board_build.flash_offset = 0x08000000
diff --git a/extra_scripts/extra_stm32.py b/extra_scripts/extra_stm32.py
new file mode 100755
index 000000000..7448cef3d
--- /dev/null
+++ b/extra_scripts/extra_stm32.py
@@ -0,0 +1,19 @@
+Import("env")
+# Custom HEX from ELF
+env.AddPostAction(
+    "$BUILD_DIR/${PROGNAME}.elf",
+    env.VerboseAction(
+        " ".join(
+            [
+                "$OBJCOPY",
+                "-O",
+                "ihex",
+                "-R",
+                ".eeprom",
+                "$BUILD_DIR/${PROGNAME}.elf",
+                "$BUILD_DIR/${PROGNAME}.hex",
+            ]
+        ),
+        "Building $BUILD_DIR/${PROGNAME}.hex",
+    ),
+)