diff --git a/README.md b/README.md
new file mode 100644
index 0000000..2f1a5cc
--- /dev/null
+++ b/README.md
@@ -0,0 +1,3 @@
+WARNING! This is a student project under active development. Not yet in a usable state.
+
+This is copy pasta of stm32l4xx-hal ported for stm32u575 via its PAC. Features not in stm32l4xx-hal will be developed after the full port.