diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..345875b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,14 @@
+### cmake generated garbage ###
+CMakeCache.txt
+CMakeDoxyfile.in
+CMakeDoxygenDefaults.cmake
+CMakeFiles/
+cmake_install.cmake
+
+### pico/board specific stuff ###
+elf2uf2/
+generated/
+pico-sdk/
+
+### generated makefile(s) ###
+Makefile