diff --git a/Cargo.lock b/Cargo.lock
index ce740b9..dc289e6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,15 @@
 # It is not intended for manual editing.
 version = 4
 
+[[package]]
+name = "embedded-hal"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "361a90feb7004eca4019fb28352a9465666b24f840f5c3cddf0ff13920590b89"
+
 [[package]]
 name = "zel-tca8418"
 version = "0.1.0"
+dependencies = [
+ "embedded-hal",
+]
diff --git a/Cargo.toml b/Cargo.toml
index d9191de..210a175 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,3 +4,4 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
+embedded-hal = "1.0.0"