diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..581f2e9
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,18 @@
+name: Build firmware
+
+on:
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: true
+    - name: make
+      run: |
+        sudo apt-get install gcc-arm-none-eabi libnewlib-arm-none-eabi
+        make -C micropython/mpy-cross
+        make -C micropython/ports/rp2 BOARD=SPARKFUN_XRP_CONTROLLER submodules
+        make BOARD=SPARKFUN_XRP_CONTROLLER