diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 0000000..dfac03c
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,3 @@
+[toolchain]
+components = [ "rust-src", "rustfmt", "llvm-tools" ]
+targets = ["thumbv6m-none-eabi"]
\ No newline at end of file