Add CI checks

.github/workflows/check.yml

@@ -0,0 +1,15 @@
+on: push
+name: CI Checks
+jobs:
+  check:
+    name: Check and Lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          target: thumbv6m-none-eabi
+      - run: "cargo check"
+      - run: "cargo fmt -- --check"
+      - run: "cargo clippy -- -Dwarnings"

.gitignore

@@ -1 +1,2 @@
 .idea/
+target

Cargo.lock

@@ -0,0 +1,118 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
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+
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